CA2015958C - Coffee or tea machine - Google Patents
Coffee or tea machineInfo
- Publication number
- CA2015958C CA2015958C CA002015958A CA2015958A CA2015958C CA 2015958 C CA2015958 C CA 2015958C CA 002015958 A CA002015958 A CA 002015958A CA 2015958 A CA2015958 A CA 2015958A CA 2015958 C CA2015958 C CA 2015958C
- Authority
- CA
- Canada
- Prior art keywords
- coffee
- siphon
- chamber
- container
- machine according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 241001122767 Theaceae Species 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000013022 venting Methods 0.000 claims abstract description 13
- 238000009499 grossing Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 4
- 239000013505 freshwater Substances 0.000 description 2
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/462—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank
- A47J31/465—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank for the heated water
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/04—Coffee-making apparatus with rising pipes
- A47J31/057—Coffee-making apparatus with rising pipes with water container separated from beverage container, the hot water passing the filter only once i.e. classical type of drip coffee makers
- A47J31/0573—Coffee-making apparatus with rising pipes with water container separated from beverage container, the hot water passing the filter only once i.e. classical type of drip coffee makers with flow through heaters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
- A47J31/4475—Hot water outlets for drip coffee makers
Abstract
A coffee or tea machine comprising, between a riser pipe and a filter vessel, an intermediate container adapted to be emptied periodically by a siphon, provided with a vent pipe, and otherwise enclosed on all sides.
The vent pipe opens into a chamber which is arranged externally of the siphon and is defined by walls, only the underside of the said chamber being open. The lower boundary plane of the chamber, arranged in the interior of the intermediate container, terminates below the overflow edge of the said siphon. Venting of the interior of the intermediate chamber thus comes to an end as soon as the water reaches the lower boundary plane of the chamber. This leads to a very rapid increase in pressure in the said intermediate container, resulting in extremely satisfactory and highly effective filling of the siphon.
The vent pipe opens into a chamber which is arranged externally of the siphon and is defined by walls, only the underside of the said chamber being open. The lower boundary plane of the chamber, arranged in the interior of the intermediate container, terminates below the overflow edge of the said siphon. Venting of the interior of the intermediate chamber thus comes to an end as soon as the water reaches the lower boundary plane of the chamber. This leads to a very rapid increase in pressure in the said intermediate container, resulting in extremely satisfactory and highly effective filling of the siphon.
Description
2015~58 The invention relates to a coffee or tea machine comprising an intermediate container adapted to be emptied periodically by means of a siphon, provided with a vent pipe and otherwise closed on all sides, for the brewing water.
Coffee and/or tea machines of this kind are known per se (DE 36 43 878 C2).
The intermediate container, adapted to be emptied periodically by means of the siphon serves, first of all, to collect a predetermined amount of heated water and then to deliver it, relatively quickly, in the form of a surge, to the filter vessel located under the intermediate container.
The purpose of the vent pipe is to vent the intermediate container which, except for the water inlet, is closed on all sides, thus ensuring that it can be emptied.
If, during a previous cycle, the intermediate container was only partly filled with water, the resulting steam ensures that the said container is emptied since, if the vent pipe is properly designed, the resulting pressure in the intermediate container ensures that, even if it is only partly filled, the water used to brew the coffee or tea will pass over the overflow edge of the siphon.
It has been found that the basic concept of such coffee or tea machines is quite workable. However, certain difficulties arise with the accurate determination of all of the components of the intermediate container, in order to ensure that the siphon functions properly under all operating conditions.
Coffee and/or tea machines of this kind are known per se (DE 36 43 878 C2).
The intermediate container, adapted to be emptied periodically by means of the siphon serves, first of all, to collect a predetermined amount of heated water and then to deliver it, relatively quickly, in the form of a surge, to the filter vessel located under the intermediate container.
The purpose of the vent pipe is to vent the intermediate container which, except for the water inlet, is closed on all sides, thus ensuring that it can be emptied.
If, during a previous cycle, the intermediate container was only partly filled with water, the resulting steam ensures that the said container is emptied since, if the vent pipe is properly designed, the resulting pressure in the intermediate container ensures that, even if it is only partly filled, the water used to brew the coffee or tea will pass over the overflow edge of the siphon.
It has been found that the basic concept of such coffee or tea machines is quite workable. However, certain difficulties arise with the accurate determination of all of the components of the intermediate container, in order to ensure that the siphon functions properly under all operating conditions.
2~15~58 It is therefore the purpose of the invention to design a coffee or tea machine of the type in question in such a manner as to improve the reliability of the intermediate container siphon, using relatively simple S and inexpensive means.
According to the invention, this purpose is accomplished in that the vent pipe opens into a downwardly open chamber defined by walls in the interior of the intermediate container and in that the lower boundary plane of this chamber is located below the overflow edge of the siphon.
This arrangement ensures that from the moment at which the water level in the intermediate container reaches the lower boundary plane of the chamber, there can be no further emptying of the intermediate container.
Further delivery of brewing water to the intermediate container, and this includes the delivery of steam bubbles, causes the pressure in the intermediate container to rise and this suddenly forces the water therein over the siphon overflow edge. The outlet from the siphon is instantly filled with a closed column of water, thus reliably preventing the siphon from ceasing to function.
According to one particularly desirable example of the invention, the vent pipe carries a plurality of very small vent holes.
This arrangement ensures an adequate cross-sectional area for venting and, if, during a previous cycle, the intermediate container was only partly filled with water, the resulting steam is opposed by an increased flow resistance. This provides a faster and more effective pressure increase in the intermediate container.
_ - 3 - ~ 01 5~ 58 This makes use of the fact that if several relatively small vent holes are provided instead of a single hole of approximately the same cross-section, the flow resistance increases considerably as a function of flow velocity.
Accordingly, the present invention provides in a coffee or tea maker including an intermediate vessel for holding heated water, a siphon extending within said vessel and having an outlet passing through a bottom of said vessel for periodically emptying said intermediate vessel into a coffee or tea filter, a ventilation pipe for venting the intermediate vessel, a water inlet for filling the intermediate vessel with heated water, and the intermediate vessel being closed except for the siphon, the ventilation pipe, and the inlet, wherein the improvement comprises means defining an overflow edge of a siphon inlet on an upper part of the siphon within the vessel; means defining a downwardly open chamber disposed in the interior of the intermediate vessel; means defining a lower delimiting plane on a lower portion of the downwardly open chamber; the ventilation pipe opening into the downwardly open chamber for venting air therefrom; and the means defining the lower delimiting plane lying below the overflow edge of the siphon inlet for preventing air from entering the downwardly open chamber when a water level in the intermediate vessel is at least at the level of the means defining the lower delimiting plane for preventing further venting of air from the intermediate vessel through the ventilation pipe while siphoning heated water is started to insure continuous outflow of heated water.
Other designs of intermediate containers according to the invention appear in additional sub-claims.
The invention is explained hereinafter in greater detail, in conjunction with the examples of the embodiment shown in the drawings attached hereto, wherein:
- 3A - ~01 5958 Figure 1 shows a diagrammatiCal coffee or tea machine with an intermediate container, shown in cross-section, for the brewing water;
Figure 2 shows a cross-section through a vent pipe in the intermediate container of a coffee or tea machine according to another embodiment of the invention;
Figure 3 is a view of an intermediate container according to another embodiment of the invention;
Figure 4 is a cross-section through the intermediate container according to Figure 3;
Figure 5 is a section along the line V-V in Figure 4;
and Figure 6 is a partly sectioned view of an intermediate container according to a further embodiment of the invention.
Coffee or tea machine 10 shown in Figure 1 comprises a fresh-water container 11, a flow heater 12, a riser pipe 13 and an intermediate container 14 into which the riser pipe 13 opens.
Arranged below intermediate 201~
container 14, which will be described hereinafter in detail, is a filter vessel 15 and below this a container 16 for the coffee or tea produced.
Intermediate container 14 is provided with a siphon 17 by means of which it may be emptied periodically.
The intermediate container 14 is also equipped with a vent pipe 18. It is otherwise enclosed on all sides except for the water inlet, i.e. the transition area between riser pipe 13 and intermediate container 14.
As shown quite clearly in Figure 1, vent pipe 18 opens into a chamber 19 which is located externally of siphon area 17 and is defined by walls 20. It is also apparent that only the underside of this chamber is open.
Lower boundary plane 21 of chamber 19 also lies below the overflow edge of siphon 17.
Thus when the level of the water in intermediate container 14 reaches lower boundary plane 21 of chamber 19, venting of the intermediate container 14 can take place, but when this level is exceeded, venting can no longer take place since chamber 19 is closed off from the remainder of the interior of the intermediate container 14. If additional water is delivered to the intermediate container 14, and this also includes steam, there is a very rapid increase in pressure therein and water stored therein is forced into siphon 17. This occurs abruptly, i.e. siphon outlet 23 is immediately filled with water.
There is thus no danger of the flow of water breaking off and the efficiency of the siphon, as a whole, is improved.
Figure 2 shows that intermediate container 14 vent pipe 18 may also be provided with a plurality of very small holes 24. The advantage of this is that the cross-201~9~8 section of the air outlet is large enough for adequate venting of the intermediate container 14. However, if steam enters the intermediate container 14, especially during a previous cycle, the increase in pressure in the intermediate container 14 is extremely rapid since the velocity of the incoming steam is considerably higher than the flow velocity of the air during venting of the intermediate container 14 because the flow resistance in the relatively small vent holes 24 increases considerably as compared with that in a single hole of approximately the same cross-section, as a function of flow velocity.
It is desirable for the intermediate container 14 to consist of only two components, namely a lower part 25 and a cover 26. These are preferably made of plastic and are welded or glued together.
Siphon outlet 23 and vent pipe 18 are moulded onto the lower part 25 of the intermediate container 14.
Walls 20 of chamber 19 and suction bell 27 of siphon 17 are moulded onto the cover 26.
Intermediate container 14, with components such as siphon 17, vent pipe 18 and chamber 19, is therefore extremely inexpensive and simple to produce.
Furthermore, the operation of siphon 17 is improved by the measures described, especially as regards the emptying of any residual water arising from a previous cycle.
The intermediate container 14 shown in Figures 3 to 5 is basically of the same design as that shown in Figure 1, and similar components therefore bear the same reference numerals.
However, in contrast to Figure 1, the intermediate container shown in Figures 3 to 5 is provided, in the 2 ~ 5 8 transition area between fresh-water inlet 28 and the chamber in which the water is actually collected, with a rebound web 29 moulded to the cover 26 and projecting downwardly, the purpose of which is to smooth the flow of water into the intermediate container 14. Coffee and tea machine flow heaters are known to have a tendency to deliver water intermittently. The resulting intermittent flow of water to the intermediate container produces surges in the brewing water. It is these surges that are counteracted by rebound web 29.
Further smoothing of the water in intermediate container 14 is achieved with a plurality of smoothing webs 30, 31 which are moulded alternately to cover 26 and lower part 25 of the intermediate container 14 and extend into the interior thereof. Webs 30 moulded to cover 26 extend considerably farther into the intermediate chamber than walls 20 defining chamber 19. On the other hand, webs 31, moulded to lower part 25 of the container extend considerably beyond lower boundary plane 21 of chamber 19.
Smoothing webs 30 and 31, moulded to the cover 26 and the lower part 25 of the container, are arranged, as a whole, in such a manner as to eliminate almost all of the surging caused by the intermittent flow of water. As a result of this, the desired closure of chamber 19, when the level of the water reaches lower boundary plane 21, is assured even when the incoming water is very turbulent. Thus the closing of chamber 19 - in order to increase the pressure by eliminating venting - is assured even if the water supplied by the flow heater 12 is very turbulent.
This purpose is promoted in that chamber 19, into which vent pipe 18 opens, is arranged in an area of the intermediate container 14 remote from water-inlet 28.
201~8 As may be gathered in particular from Figure 5, smoothing webs 30 moulded to the cover 26 are cross-sectionally T-shaped, whereas those moulded to the lower part 25 of the container are flat. The two sets of webs form a labyrinth providing optimal smoothing of the incoming brewing water.
Figure 6 shows an intermediate container 14 in which vent pipe 18 has a stepped bore, section 33 thereof, opening directly in the intermediate container 14, being larger in diameter than section 34 opening out of it.
Rheologically speaking, this stepped bore acts as a stop.
If steam enters intermediate container 14, especially from a previous cycle, turbulence occurs in the transition area between sections 33 and 34 of the vent pipe because of the relatively high flow velocity of the steam. This produces an apparent constriction of smaller diameter section 34, again leading to a rapid increase in pressure in the interior of the intermediate container 14.
According to the invention, this purpose is accomplished in that the vent pipe opens into a downwardly open chamber defined by walls in the interior of the intermediate container and in that the lower boundary plane of this chamber is located below the overflow edge of the siphon.
This arrangement ensures that from the moment at which the water level in the intermediate container reaches the lower boundary plane of the chamber, there can be no further emptying of the intermediate container.
Further delivery of brewing water to the intermediate container, and this includes the delivery of steam bubbles, causes the pressure in the intermediate container to rise and this suddenly forces the water therein over the siphon overflow edge. The outlet from the siphon is instantly filled with a closed column of water, thus reliably preventing the siphon from ceasing to function.
According to one particularly desirable example of the invention, the vent pipe carries a plurality of very small vent holes.
This arrangement ensures an adequate cross-sectional area for venting and, if, during a previous cycle, the intermediate container was only partly filled with water, the resulting steam is opposed by an increased flow resistance. This provides a faster and more effective pressure increase in the intermediate container.
_ - 3 - ~ 01 5~ 58 This makes use of the fact that if several relatively small vent holes are provided instead of a single hole of approximately the same cross-section, the flow resistance increases considerably as a function of flow velocity.
Accordingly, the present invention provides in a coffee or tea maker including an intermediate vessel for holding heated water, a siphon extending within said vessel and having an outlet passing through a bottom of said vessel for periodically emptying said intermediate vessel into a coffee or tea filter, a ventilation pipe for venting the intermediate vessel, a water inlet for filling the intermediate vessel with heated water, and the intermediate vessel being closed except for the siphon, the ventilation pipe, and the inlet, wherein the improvement comprises means defining an overflow edge of a siphon inlet on an upper part of the siphon within the vessel; means defining a downwardly open chamber disposed in the interior of the intermediate vessel; means defining a lower delimiting plane on a lower portion of the downwardly open chamber; the ventilation pipe opening into the downwardly open chamber for venting air therefrom; and the means defining the lower delimiting plane lying below the overflow edge of the siphon inlet for preventing air from entering the downwardly open chamber when a water level in the intermediate vessel is at least at the level of the means defining the lower delimiting plane for preventing further venting of air from the intermediate vessel through the ventilation pipe while siphoning heated water is started to insure continuous outflow of heated water.
Other designs of intermediate containers according to the invention appear in additional sub-claims.
The invention is explained hereinafter in greater detail, in conjunction with the examples of the embodiment shown in the drawings attached hereto, wherein:
- 3A - ~01 5958 Figure 1 shows a diagrammatiCal coffee or tea machine with an intermediate container, shown in cross-section, for the brewing water;
Figure 2 shows a cross-section through a vent pipe in the intermediate container of a coffee or tea machine according to another embodiment of the invention;
Figure 3 is a view of an intermediate container according to another embodiment of the invention;
Figure 4 is a cross-section through the intermediate container according to Figure 3;
Figure 5 is a section along the line V-V in Figure 4;
and Figure 6 is a partly sectioned view of an intermediate container according to a further embodiment of the invention.
Coffee or tea machine 10 shown in Figure 1 comprises a fresh-water container 11, a flow heater 12, a riser pipe 13 and an intermediate container 14 into which the riser pipe 13 opens.
Arranged below intermediate 201~
container 14, which will be described hereinafter in detail, is a filter vessel 15 and below this a container 16 for the coffee or tea produced.
Intermediate container 14 is provided with a siphon 17 by means of which it may be emptied periodically.
The intermediate container 14 is also equipped with a vent pipe 18. It is otherwise enclosed on all sides except for the water inlet, i.e. the transition area between riser pipe 13 and intermediate container 14.
As shown quite clearly in Figure 1, vent pipe 18 opens into a chamber 19 which is located externally of siphon area 17 and is defined by walls 20. It is also apparent that only the underside of this chamber is open.
Lower boundary plane 21 of chamber 19 also lies below the overflow edge of siphon 17.
Thus when the level of the water in intermediate container 14 reaches lower boundary plane 21 of chamber 19, venting of the intermediate container 14 can take place, but when this level is exceeded, venting can no longer take place since chamber 19 is closed off from the remainder of the interior of the intermediate container 14. If additional water is delivered to the intermediate container 14, and this also includes steam, there is a very rapid increase in pressure therein and water stored therein is forced into siphon 17. This occurs abruptly, i.e. siphon outlet 23 is immediately filled with water.
There is thus no danger of the flow of water breaking off and the efficiency of the siphon, as a whole, is improved.
Figure 2 shows that intermediate container 14 vent pipe 18 may also be provided with a plurality of very small holes 24. The advantage of this is that the cross-201~9~8 section of the air outlet is large enough for adequate venting of the intermediate container 14. However, if steam enters the intermediate container 14, especially during a previous cycle, the increase in pressure in the intermediate container 14 is extremely rapid since the velocity of the incoming steam is considerably higher than the flow velocity of the air during venting of the intermediate container 14 because the flow resistance in the relatively small vent holes 24 increases considerably as compared with that in a single hole of approximately the same cross-section, as a function of flow velocity.
It is desirable for the intermediate container 14 to consist of only two components, namely a lower part 25 and a cover 26. These are preferably made of plastic and are welded or glued together.
Siphon outlet 23 and vent pipe 18 are moulded onto the lower part 25 of the intermediate container 14.
Walls 20 of chamber 19 and suction bell 27 of siphon 17 are moulded onto the cover 26.
Intermediate container 14, with components such as siphon 17, vent pipe 18 and chamber 19, is therefore extremely inexpensive and simple to produce.
Furthermore, the operation of siphon 17 is improved by the measures described, especially as regards the emptying of any residual water arising from a previous cycle.
The intermediate container 14 shown in Figures 3 to 5 is basically of the same design as that shown in Figure 1, and similar components therefore bear the same reference numerals.
However, in contrast to Figure 1, the intermediate container shown in Figures 3 to 5 is provided, in the 2 ~ 5 8 transition area between fresh-water inlet 28 and the chamber in which the water is actually collected, with a rebound web 29 moulded to the cover 26 and projecting downwardly, the purpose of which is to smooth the flow of water into the intermediate container 14. Coffee and tea machine flow heaters are known to have a tendency to deliver water intermittently. The resulting intermittent flow of water to the intermediate container produces surges in the brewing water. It is these surges that are counteracted by rebound web 29.
Further smoothing of the water in intermediate container 14 is achieved with a plurality of smoothing webs 30, 31 which are moulded alternately to cover 26 and lower part 25 of the intermediate container 14 and extend into the interior thereof. Webs 30 moulded to cover 26 extend considerably farther into the intermediate chamber than walls 20 defining chamber 19. On the other hand, webs 31, moulded to lower part 25 of the container extend considerably beyond lower boundary plane 21 of chamber 19.
Smoothing webs 30 and 31, moulded to the cover 26 and the lower part 25 of the container, are arranged, as a whole, in such a manner as to eliminate almost all of the surging caused by the intermittent flow of water. As a result of this, the desired closure of chamber 19, when the level of the water reaches lower boundary plane 21, is assured even when the incoming water is very turbulent. Thus the closing of chamber 19 - in order to increase the pressure by eliminating venting - is assured even if the water supplied by the flow heater 12 is very turbulent.
This purpose is promoted in that chamber 19, into which vent pipe 18 opens, is arranged in an area of the intermediate container 14 remote from water-inlet 28.
201~8 As may be gathered in particular from Figure 5, smoothing webs 30 moulded to the cover 26 are cross-sectionally T-shaped, whereas those moulded to the lower part 25 of the container are flat. The two sets of webs form a labyrinth providing optimal smoothing of the incoming brewing water.
Figure 6 shows an intermediate container 14 in which vent pipe 18 has a stepped bore, section 33 thereof, opening directly in the intermediate container 14, being larger in diameter than section 34 opening out of it.
Rheologically speaking, this stepped bore acts as a stop.
If steam enters intermediate container 14, especially from a previous cycle, turbulence occurs in the transition area between sections 33 and 34 of the vent pipe because of the relatively high flow velocity of the steam. This produces an apparent constriction of smaller diameter section 34, again leading to a rapid increase in pressure in the interior of the intermediate container 14.
Claims (11)
1. In a coffee or tea maker including an intermediate vessel for holding heated water, a siphon extending within said vessel and having an outlet passing through a bottom of said vessel for periodically emptying said intermediate vessel into a coffee or tea filter, a ventilation pipe for venting said intermediate vessel, a water inlet for filling said intermediate vessel with heated water, and said intermediate vessel being closed except for said siphon, said ventilation pipe, and said inlet, wherein the improvement comprises:
means defining an overflow edge of a siphon inlet on an upper part of said siphon within said vessel;
means defining a downwardly open chamber disposed in the interior of said intermediate vessel;
means defining a lower delimiting plane on a lower portion of said downwardly open chamber;
said ventilation pipe opening into said downwardly open chamber for venting air therefrom; and said means defining the lower delimiting plane lying below said overflow edge of said siphon inlet for preventing air from entering said downwardly open chamber when a water level in said intermediate vessel is at least at the level of said means defining the lower delimiting plane for preventing further venting of air from said intermediate vessel through said ventilation pipe while siphoning heated water is started to insure continuous outflow of heated water.
means defining an overflow edge of a siphon inlet on an upper part of said siphon within said vessel;
means defining a downwardly open chamber disposed in the interior of said intermediate vessel;
means defining a lower delimiting plane on a lower portion of said downwardly open chamber;
said ventilation pipe opening into said downwardly open chamber for venting air therefrom; and said means defining the lower delimiting plane lying below said overflow edge of said siphon inlet for preventing air from entering said downwardly open chamber when a water level in said intermediate vessel is at least at the level of said means defining the lower delimiting plane for preventing further venting of air from said intermediate vessel through said ventilation pipe while siphoning heated water is started to insure continuous outflow of heated water.
2. A coffee or tea machine according to claim 1, wherein the vent pipe comprises a plurality of very small vent holes.
3. A coffee or tea machine according to claim 1, wherein the vent pipe has a stepped bore, a section of which opens into the intermediate container is larger in diameter than a section which opens out of the intermediate chamber.
4. A coffee or tea machine according to claim 1, 2 or 3, wherein the intermediate container consists of a one-piece lower part and a one-piece cover part, the siphon outlet and the vent pipe being moulded to the lower part of the container and a suction bell, inverted over the siphon outlet, and the walls of the chamber, being moulded to the cover part.
5. A coffee or tea machine according to claim 4, wherein the lower part of the container, and the cover part, are both made of plastic.
6. A coffee or tea machine according to claim 5, wherein the lower part of the container, and the cover part, are glued or welded together.
7. A coffee or tea machine according to claim 4, wherein there is provided in the transition area between the water inlet and the water collecting area of the intermediate container, a downwardly projecting rebound web moulded to the cover part.
8. A coffee or tea machine according to claim 7, wherein a plurality of smoothing webs are moulded on in the area of the water collecting chamber of the intermediate container, in the lower part of the container, and/or to the cover part, said webs extending upwardly and/or downwardly beyond the lower boundary plane of the chamber.
9. A coffee or tea machine according to claim 8, wherein the smoothing webs, moulded onto the cover part, are cross-sectionally T-shaped.
10. A coffee or tea machine according to claim 8, wherein the smoothing webs, moulded onto the lower part of the container, are flat.
11. A coffee or tea machine according to claim 1, wherein the vent pipe and the chamber are arranged in an area of the intermediate container remote from the water inlet.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3914605.7-16 | 1989-05-03 | ||
| DE3914605 | 1989-05-03 | ||
| DE4003916A DE4003916C1 (en) | 1989-05-03 | 1990-02-09 | |
| DEP4003916.1 | 1990-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2015958A1 CA2015958A1 (en) | 1990-11-03 |
| CA2015958C true CA2015958C (en) | 1995-08-22 |
Family
ID=25880533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002015958A Expired - Fee Related CA2015958C (en) | 1989-05-03 | 1990-05-02 | Coffee or tea machine |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5070773A (en) |
| EP (1) | EP0395866B1 (en) |
| JP (1) | JPH0390113A (en) |
| AR (1) | AR244531A1 (en) |
| AT (1) | ATE89702T1 (en) |
| AU (1) | AU624708B2 (en) |
| BR (1) | BR9002043A (en) |
| CA (1) | CA2015958C (en) |
| DE (2) | DE4003916C1 (en) |
| DK (1) | DK0395866T3 (en) |
| ES (1) | ES2040524T3 (en) |
| FI (1) | FI88865C (en) |
| NO (1) | NO172724C (en) |
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| US5168794A (en) * | 1990-12-31 | 1992-12-08 | Glucksman Dov Z | Apparatus for brewing coffee |
| DE4130446A1 (en) * | 1991-09-13 | 1993-03-25 | Braun Ag | BREW BEVERAGE MACHINE |
| DE4409768C1 (en) * | 1994-03-22 | 1995-04-06 | Wilhelm Schmidt Fa | Filling level indicator for indicating liquid filling levels in transport containers |
| DE19545112C2 (en) * | 1995-12-04 | 1999-06-10 | Braun Gmbh | Espresso machine |
| US6220147B1 (en) | 1997-06-13 | 2001-04-24 | Affinitea Brewing Technologies, Inc. | Beverage preparation and layering device for an espresso machine |
| FR2783684B1 (en) * | 1998-09-25 | 2000-11-24 | Seb Sa | BOILER COFFEE MAKER |
| US6488976B1 (en) | 1999-12-13 | 2002-12-03 | Affinitea Brewing Technologies, Inc. | Method and apparatus for brewing tea with an espresso machine |
| JP2002306342A (en) * | 2001-04-13 | 2002-10-22 | Matsushita Electric Ind Co Ltd | Coffee maker |
| US20040055472A1 (en) * | 2002-09-24 | 2004-03-25 | Sto Corporation | One-cup coffee brewer |
| US6843165B2 (en) * | 2002-09-24 | 2005-01-18 | Sto Corporation | Coffee brewer |
| US7093533B2 (en) * | 2003-10-10 | 2006-08-22 | Applica Consumer Products, Inc. | Brewing apparatus hot water discharge head |
| US7024983B2 (en) * | 2003-10-10 | 2006-04-11 | Hp Intellectual Corp. | Brewing apparatus hot water control |
| US7093530B2 (en) * | 2003-10-09 | 2006-08-22 | Applica Consumer Products, Inc. | Coffeemaker pod carrier |
| US20050076784A1 (en) * | 2003-10-10 | 2005-04-14 | Hp Intellectual Corp. | Brewing apparatus pod carrier and frothing attachment |
| US6990891B2 (en) * | 2003-10-10 | 2006-01-31 | Hp Intellectual Corp. | Seal in a coffeemaker |
| US7017472B2 (en) * | 2003-10-10 | 2006-03-28 | Hp Intellectual Corp. | Brewing apparatus water temperature control |
| DE102004024892A1 (en) * | 2004-05-19 | 2005-12-15 | BSH Bosch und Siemens Hausgeräte GmbH | liquid container |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1957163A (en) * | 1931-06-06 | 1934-05-01 | Falla Fernando | Method and apparatus for brewing coffee and the like |
| GB793944A (en) * | 1953-08-07 | 1958-04-23 | Theodor H Stiebel | Heated beverage preparation apparatus with selectively adjustable modes of operation |
| US2857084A (en) * | 1956-05-09 | 1958-10-21 | Melikian Inc Rudd | Constant head device |
| US3371593A (en) * | 1966-06-10 | 1968-03-05 | Farmer Bros Co | Coffee brewing apparatus |
| US3626839A (en) * | 1970-01-15 | 1971-12-14 | Bunn O Matic Corp | Hot water spray head for coffee making machine |
| NL7015688A (en) * | 1970-10-27 | 1972-05-02 | ||
| US3859902A (en) * | 1973-06-28 | 1975-01-14 | Reynolds Products | Pour in coffee maker |
| DE2733487A1 (en) * | 1977-07-25 | 1979-02-15 | Schulte | Hot drinks machine with constant fluid outflow - has deflector walls offset in outlet pipe reducing high-speed through flow |
| DE2741719C3 (en) * | 1977-09-16 | 1981-07-16 | Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden | Electric coffee or tea machine |
| US4402257A (en) * | 1981-07-01 | 1983-09-06 | Marotta Vincent G | Electric coffee maker |
| US4448113A (en) * | 1982-09-29 | 1984-05-15 | Brabon David L | Coffee refreshener |
| DE3643877A1 (en) * | 1986-12-22 | 1988-07-07 | Bentz & Sohn Melitta | COFFEE OR TEA MACHINE |
| DE3643878A1 (en) * | 1986-12-22 | 1988-07-07 | Bentz & Sohn Melitta | COFFEE OR TEA MACHINE |
| DE8708082U1 (en) * | 1987-06-06 | 1987-07-23 | Melitta-Werke Bentz & Sohn, 4950 Minden, De |
-
1990
- 1990-02-09 DE DE4003916A patent/DE4003916C1/de not_active Expired - Fee Related
- 1990-03-17 EP EP90105081A patent/EP0395866B1/en not_active Expired - Lifetime
- 1990-03-17 DE DE9090105081T patent/DE59001535D1/en not_active Expired - Fee Related
- 1990-03-17 ES ES199090105081T patent/ES2040524T3/en not_active Expired - Lifetime
- 1990-03-17 AT AT90105081T patent/ATE89702T1/en not_active IP Right Cessation
- 1990-03-17 DK DK90105081.5T patent/DK0395866T3/en active
- 1990-04-27 NO NO901901A patent/NO172724C/en unknown
- 1990-05-02 JP JP2115316A patent/JPH0390113A/en active Granted
- 1990-05-02 BR BR909002043A patent/BR9002043A/en not_active Application Discontinuation
- 1990-05-02 FI FI902191A patent/FI88865C/en not_active IP Right Cessation
- 1990-05-02 CA CA002015958A patent/CA2015958C/en not_active Expired - Fee Related
- 1990-05-03 AU AU54745/90A patent/AU624708B2/en not_active Ceased
- 1990-05-03 AR AR90316768A patent/AR244531A1/en active
- 1990-05-03 US US07/518,444 patent/US5070773A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59001535D1 (en) | 1993-07-01 |
| NO901901D0 (en) | 1990-04-27 |
| EP0395866A2 (en) | 1990-11-07 |
| BR9002043A (en) | 1991-08-13 |
| DK0395866T3 (en) | 1993-06-21 |
| US5070773A (en) | 1991-12-10 |
| DE4003916C1 (en) | 1990-10-31 |
| EP0395866A3 (en) | 1991-08-07 |
| FI902191A0 (en) | 1990-05-02 |
| NO172724B (en) | 1993-05-24 |
| CA2015958A1 (en) | 1990-11-03 |
| JPH0478287B2 (en) | 1992-12-10 |
| FI88865C (en) | 1993-07-26 |
| ES2040524T3 (en) | 1993-10-16 |
| FI88865B (en) | 1993-04-15 |
| ATE89702T1 (en) | 1993-06-15 |
| AU624708B2 (en) | 1992-06-18 |
| NO901901L (en) | 1990-11-05 |
| NO172724C (en) | 1993-09-01 |
| AR244531A1 (en) | 1993-11-30 |
| EP0395866B1 (en) | 1993-05-26 |
| JPH0390113A (en) | 1991-04-16 |
| AU5474590A (en) | 1990-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |