EP0127497B1 - Fluid dispenser - Google Patents

Fluid dispenser Download PDF

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Publication number
EP0127497B1
EP0127497B1 EP84400793A EP84400793A EP0127497B1 EP 0127497 B1 EP0127497 B1 EP 0127497B1 EP 84400793 A EP84400793 A EP 84400793A EP 84400793 A EP84400793 A EP 84400793A EP 0127497 B1 EP0127497 B1 EP 0127497B1
Authority
EP
European Patent Office
Prior art keywords
spring
container
dispenser
lever
fluid
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
Application number
EP84400793A
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German (de)
French (fr)
Other versions
EP0127497A1 (en
Inventor
John R. Acklin
Lee W. Bush
Joseph J. Danna
John L. Devitt
George A. Rauh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cambio Ragione Sociale calgon Corp
Original Assignee
Calgon Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Calgon Corp filed Critical Calgon Corp
Priority to AT84400793T priority Critical patent/ATE27895T1/en
Publication of EP0127497A1 publication Critical patent/EP0127497A1/en
Application granted granted Critical
Publication of EP0127497B1 publication Critical patent/EP0127497B1/en
Expired legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06Dispensers for soap
    • A47K5/12Dispensers for soap for liquid or pasty soap
    • A47K5/1217Electrical control means for the dispensing mechanism

Definitions

  • This invention relates to automatic dispensers, in particular for dispensing liquid detergents, soaps and germicides.
  • a need has long existed for a dispenser that would release a measured quantity of soap or other material without the need for the user to depress a button, move a handle or the like.
  • the handling of such actuators of conventional dispensers by a number of users spreads disease causing micro-organisms and creates an unsightly appearance around the dispenser actuator.
  • a dispenser that would release a predetermined quantity of liquid soap or the like in response to the presence of a hand or other receiving object placed under the dispenser outlet would eliminate the aforementioned disadvantages of conventional dispensers.
  • a predetermined quantity of fluid (hereinafter termed a portion) be released from the dispenser upon each instance of use.
  • the dispenser be adapted to the use of a disposable fluid container which can be placed within the dispenser, and that such a disposable container be integrally connected to disposable valve means and outlet means. In this manner, the entire wetted pathway from the container through the outlet means may be discarded after the emptying of the container, thereby minimizing the opportunities for a build-up of micro-organisms.
  • the dispenser contain a proximity detector means of an electrical nature, and that said proximity detector means consumes a minimum of electric power, thereby allowing the use of disposable or rechargeable batteries.
  • the present invention is concerned with an automatic fluid dispenser, in particular for dispensing liquid detergents, soaps and germicides, of the type comprising:
  • the instant invention is directed to a fluid dispenser comprising:
  • This invention is particularly directed to a fluid dispenser which contains an electric power source, an electronic proximity detector, a means for holding and supporting a flexible, disposable bag container, an actuator which opens and closes a disposable valve which is part of the container assembly, and a pressurizing means which applies a force to the top of the bag, moving fluid from the bag through the valve when the valve is open.
  • the power source for the dispenser is a dry-cell battery, allowing location of the dispenser anywhere.
  • the proximity detector employs very short pulses of infra-red radiation which are directed downward in a beam aimed toward the area under the dispenser outlet, and in association with a detector of infra-red radiation which is designed to pick up reflected light from a hand or other receiving object placed below the outlet.
  • a light signal it is energized continuously in order to be in constant readiness
  • it is converted to a timed pulse which is transmitted to the actuator, opening the valve.
  • a predetermined interval later, another timed pulse is sent to the actuator, closing the valve.
  • the fluid container is a flexible bag which lies in a horizontal position on a shelf above the detector.
  • valve means and outlet means are also disposable and are attached to the bag, hanging below it.
  • a spring-driven pressure plate presses gently on top of the bag and is arranged to press with gradually increasing force as the bag empties, compensating for the naturally slowing flow of the unassisted bag under this condition. This combination of constant flow rate and predetermined open time for the valve yields portions of uniform size.
  • Figures 1 and 2 show two views of the dispenser, and in both of them the front side of the dispenser is on the left, and a wall mount is on the right.
  • the dispenser may be mounted to a wall by means of bracket 3. Fluid is dispensed from outlet 4 which protrudes through dispenser bottom 1 at orifice 5.
  • the proximity detector means uses two infra-red devices: emiter means 6 and detector means 7. Both of these are aimed optically downward in the same direction so that any object near the dispenser and illuminated by the beam from 5 will reflect a portion of this illumination back to detector 7.
  • Figure 3 shows a sectional view of the side of the dispenser. Any flexible material may be employed to create a flexible container.
  • the flexible container is supported by shelf 13.
  • Preferred materials for the container include rubber and heat-sealed plastic sheet material.
  • Flexible outlet tube 4 is sealed to the flexible container and leads to the bottom area of the dispenser as shown.
  • a simple and preferred valve and actuator mechanism consists of a pinching means coupled to a special solenoid actuator.
  • the pinch assembly is comprised of fixed pinch jaw 17 and movable pinch jaw 16.
  • One suitable solenoid mechanism 15 is shown in Figure 3, and is based on the Model S89R bistable impulse relay manufactured by the Potter and Brumfield Division of AMF Corporation.
  • each pull stroke of the solenoid plunger causes pin 27 to travel toward the heel-end 28 of the solenoid.
  • the pin thus moves within the upper leg of the vee-slot in cam 29.
  • the cam 29 is rotated clockwise, causing the pinch valve to close through the action of link 32 and movable jaw 16.
  • an internal spring (not shown) moves pin 27 back to a position at the apex of the vee slot in cam 29. The next time the solenoid is energized pin 27 traverses the lower leg of the vee slot, at the end of which cam 29 is caused to rotate counterclockwise, opening the pinch valve.
  • the electronic circuit 18 of Figure 2 powered by battery 14, converts the signal picked up by detector 7 to a short - e.g. 0.1 second - opening pulse. A pre-set interval later, the circuit sends an identical pulse to the solenoid, closing the valve. This pre-set interval is the primary control within the dispenser for the amount of fluid dispensed. It is also an exact control, provided that the flow rate through the valve is constant. If the bag container is simply resting on shelf 13, with only gravity providing pressure on the fluid or its container, the flow rate will decrease from its maximum value when the container is full, to zero when the container is empty. Thus it is necessary to provide an additional means for gradually increasing pressure on the bag container as the container is gradually emptied during the any successive withdrawals of fluid from the dispenser. In this way the naturally decreasing hydrostatic pressure caused by the height of the fluid level in the bag can be compensated by the aforementioned increase in pressure applied to the bag.
  • Figures 4 and 5 show the general arrangement of the dispenser parts.
  • Figure 4 shows that the flexible bag 19 lies under a pressure plate 11 which is attached in a pivoting manner to axle 26.
  • This axle is solidly attached to a straight lever 30 and a triangular lever 20.
  • These two levers are attached together by a shaft 31 which is free to rotate in holes or bearings which are an integral part of the dispenser framework (not shown).
  • Extension spring 24 is attached to the dispenser framework at 25 and to the triangular lever at 22. In the position shown in Figure 4 the spring is attempting to cause counterclockwise rotation of the triangular lever, and hence a downward motion on the pressure plate.
  • Figure 3 reveals that the dispensed fluid touches only the disposable flexible container 19 and the flexible outlet tube 4.
  • the container fixed pinch jaw 17 may be adapted to be swung out of the way during container and outlet tube replacement.
  • alternative valve mechanisms may be used, as long as they are disposable and adapted to operate in association with solenoid 15.
  • a poppet or movable-flap type of valve, for example, may be used.
  • a rotary valve may be employed, deriving its actuation from the angular motion of the cam 29.
  • the resilient tube 4 may be bent to provide a kink seal. The minimum angle to provide a kink seal is defined for each resilient material and can be accomplished by any mechanism that bends the tube to the required angle.
  • a simple indicator for the quantity of fluid in the container This is done, for example, by mounting a graduated dial (not shown) on shaft 31. The angular position of the dial is a direct indication of the amount of fluid in the bag.
  • a switch or other electrical transducer may be mounted in cooperation with the levers 20 or 30 so that upon approaching a nearly empty condition of the container the position of the lever is sensed by the switch, lighting a lamp or the like.
  • a major objective of the present invention is to reduce the electrical energy required for continuous dispenser use.
  • Two major components of electrical consumption are present; (1) the valve solenoid and (2) the light emitter portion of the proximity detector.
  • Valve solenoid power consumption has been lowered appreciably by the use of a bistable device, as explained above.
  • this invention employs a far lower pulse frequency and pulse duty cycle than are used in other proximity detectors used for general industrial purposes. Preferred values are near 5-20 pulses per second and a duty cycle of near 0.007. Also, the lowest effective emitter current is used.
  • Figure 6 shows the block diagram of the electronic circuits of the dispenser. Reflected radiation is received by the phototransistor, whose signal is amplified and then separated from ambient light in a level clipper.
  • the resulting signal is fed to the 0.1 second pulse generator which causes the solenoid to stroke and open the valve.
  • An auxiliary switch on the solenoid causes, through feedback path A, a variable timer to generate a "valve-open" interval, at the end of which a signal is sent to the same 0.1 second pulse generator, stroking the solenoid again and closing the valve.
  • An additional circuit path B stops the interval timer if the hand is removed prematurely from below the dispenser and immediately causes a solenoid pulse which closes the valve before the normal open interval has transpired.
  • An additional means for lowering consumption of electrical energy may be employed as an addition to the preferred embodiment of this invention.
  • This is an additional circuit, not shown in the Figures, which senses the presence or absence of general room illumination in the location of the dispenser.
  • a simple power-transistor gate actuated by a cadmium- sulfide photoresistor located on or near the exterior of the dispenser, shuts down the dispenser electronics until such times as the room lights are turned on again.
  • the battery life in the dispenser would be approximately tripled over that obtained without this feature.

Abstract

The instant invention is directed to a fluid dispenser comprising: (a) a flexible container (19) for a fluid, integrally connected to valve means (16, 17) and outlet means (4): (b) means for imparting a squeezing force to said flexible container (19); (c) and proximity detector means connected to means for opening and closing said valve means (16, 17).

Description

  • This invention relates to automatic dispensers, in particular for dispensing liquid detergents, soaps and germicides. A need has long existed for a dispenser that would release a measured quantity of soap or other material without the need for the user to depress a button, move a handle or the like. The handling of such actuators of conventional dispensers by a number of users spreads disease causing micro-organisms and creates an unsightly appearance around the dispenser actuator. Thus, a dispenser that would release a predetermined quantity of liquid soap or the like in response to the presence of a hand or other receiving object placed under the dispenser outlet would eliminate the aforementioned disadvantages of conventional dispensers.
  • In the state of the art, for example as illustrated by FR-A-1 410 288 and FR-A-2 016 862, various solutions to this problem have been proposed.
  • Therefore it is an object of this invention to release soap, detergent, or other liquid or semisolid materials (hereinafter termed fluid) in response to the mere placement of a hand or other receiving object within the proximity of the dispenser outlet.
  • It is a further object of this invention that a predetermined quantity of fluid (hereinafter termed a portion) be released from the dispenser upon each instance of use.
  • Further, it is an object of this invention that the dispenser be adapted to the use of a disposable fluid container which can be placed within the dispenser, and that such a disposable container be integrally connected to disposable valve means and outlet means. In this manner, the entire wetted pathway from the container through the outlet means may be discarded after the emptying of the container, thereby minimizing the opportunities for a build-up of micro-organisms.
  • It is a further object of this invention that the dispenser contain a proximity detector means of an electrical nature, and that said proximity detector means consumes a minimum of electric power, thereby allowing the use of disposable or rechargeable batteries.
  • The present invention is concerned with an automatic fluid dispenser, in particular for dispensing liquid detergents, soaps and germicides, of the type comprising:
    • - a flexible container for fluid integrally connected to valve means and outlet means,
    • - a pressure plate which is connected to a spring-driven lever for imparting a squeezing force to said flexible container, and
    • - proximity detector means connected to means for opening and closing said valve means,

    characterized in that said spring-driven lever comprises:
    • (a) an external spring whose axis is near the central pivot point of a first order lever when the liquid container is full, the said spring axis moving away from the said central pivot point of the lever as the container is emptied;
    • (b) a first order lever whose extremities comprise the attachment point of said spring and the attachment point of an axle attached to the pressure plate, respectively, and
    • (c) sufficient length of said spring so that the torque increase caused by the increasing distance of the spring center line from the central pivot point as the container empties is more than the torque decrease caused by the lessening extension of the spring caused by movement of the lever as the container empties.
    • Figure 1 is an overall view of the embodiment of the dispenser.
    • Figure 2 is a view from beneath the dispenser.
    • Figure 3 is a side view of the dispenser showing a sectional view of internal components.
    • Figure 4 is a perspective view showing the pressure plate lowered in its position on the container bag.
    • Figure 5 is a perspective view showing the container pressure plate raised.
    • Figure 6 is a block diagram of the electronic circuits of the dispenser.
  • The instant invention is directed to a fluid dispenser comprising:
    • (a) a flexible container for a fluid, integrally connected to valve means and outlet means;
    • (b) means for imparting a squeezing force to said flexible container;
    • (c) and proximity detector means connected to means for opening and closing said valve means.
  • This invention is particularly directed to a fluid dispenser which contains an electric power source, an electronic proximity detector, a means for holding and supporting a flexible, disposable bag container, an actuator which opens and closes a disposable valve which is part of the container assembly, and a pressurizing means which applies a force to the top of the bag, moving fluid from the bag through the valve when the valve is open.
  • In a preferred embodiment of this invention, the power source for the dispenser is a dry-cell battery, allowing location of the dispenser anywhere. The proximity detector employs very short pulses of infra-red radiation which are directed downward in a beam aimed toward the area under the dispenser outlet, and in association with a detector of infra-red radiation which is designed to pick up reflected light from a hand or other receiving object placed below the outlet. When the detector picks up a light signal (it is energized continuously in order to be in constant readiness), it is converted to a timed pulse which is transmitted to the actuator, opening the valve. A predetermined interval later, another timed pulse is sent to the actuator, closing the valve. The fluid container is a flexible bag which lies in a horizontal position on a shelf above the detector. The valve means and outlet means are also disposable and are attached to the bag, hanging below it. In order to provide a substantially constant flow rate from the container, a spring-driven pressure plate presses gently on top of the bag and is arranged to press with gradually increasing force as the bag empties, compensating for the naturally slowing flow of the unassisted bag under this condition. This combination of constant flow rate and predetermined open time for the valve yields portions of uniform size.
  • Referring now to the drawings, Figures 1 and 2 show two views of the dispenser, and in both of them the front side of the dispenser is on the left, and a wall mount is on the right. The dispenser may be mounted to a wall by means of bracket 3. Fluid is dispensed from outlet 4 which protrudes through dispenser bottom 1 at orifice 5. The proximity detector means uses two infra-red devices: emiter means 6 and detector means 7. Both of these are aimed optically downward in the same direction so that any object near the dispenser and illuminated by the beam from 5 will reflect a portion of this illumination back to detector 7.
  • Figure 3 shows a sectional view of the side of the dispenser. Any flexible material may be employed to create a flexible container. The flexible container is supported by shelf 13. Preferred materials for the container include rubber and heat-sealed plastic sheet material. Flexible outlet tube 4 is sealed to the flexible container and leads to the bottom area of the dispenser as shown. A simple and preferred valve and actuator mechanism consists of a pinching means coupled to a special solenoid actuator. In Figure 3 the pinch assembly is comprised of fixed pinch jaw 17 and movable pinch jaw 16. One suitable solenoid mechanism 15 is shown in Figure 3, and is based on the Model S89R bistable impulse relay manufactured by the Potter and Brumfield Division of AMF Corporation. In this mechanism, each pull stroke of the solenoid plunger causes pin 27 to travel toward the heel-end 28 of the solenoid. In the position shown in Figure 3 the pin thus moves within the upper leg of the vee-slot in cam 29. When the pin reaches the end of the slot (the position shown in Figure 3) the cam 29 is rotated clockwise, causing the pinch valve to close through the action of link 32 and movable jaw 16. When the solenoid is de-energized, an internal spring (not shown) moves pin 27 back to a position at the apex of the vee slot in cam 29. The next time the solenoid is energized pin 27 traverses the lower leg of the vee slot, at the end of which cam 29 is caused to rotate counterclockwise, opening the pinch valve. Thus, successive electrical actuations of the solenoid alternately open and close the pinch valve. This is important, because any required quantity of fluid may be dispensed by only two very short impulses - one to open the valve and the other to close it. Using a Potter and Brumfield-type device, an electrical impulse lasting only 0.1 second is needed for each transfer of the cam from one position to the other. Since a typical fluid-dispense event may require as much time as several seconds, the use of an impulse solenoid of this nature saves a great deal of electrical energy from its battery.
  • The electronic circuit 18 of Figure 2, powered by battery 14, converts the signal picked up by detector 7 to a short - e.g. 0.1 second - opening pulse. A pre-set interval later, the circuit sends an identical pulse to the solenoid, closing the valve. This pre-set interval is the primary control within the dispenser for the amount of fluid dispensed. It is also an exact control, provided that the flow rate through the valve is constant. If the bag container is simply resting on shelf 13, with only gravity providing pressure on the fluid or its container, the flow rate will decrease from its maximum value when the container is full, to zero when the container is empty. Thus it is necessary to provide an additional means for gradually increasing pressure on the bag container as the container is gradually emptied during the any successive withdrawals of fluid from the dispenser. In this way the naturally decreasing hydrostatic pressure caused by the height of the fluid level in the bag can be compensated by the aforementioned increase in pressure applied to the bag.
  • Figures 4 and 5 show the general arrangement of the dispenser parts. In particular, Figure 4 shows that the flexible bag 19 lies under a pressure plate 11 which is attached in a pivoting manner to axle 26. This axle, in turn, is solidly attached to a straight lever 30 and a triangular lever 20. These two levers are attached together by a shaft 31 which is free to rotate in holes or bearings which are an integral part of the dispenser framework (not shown). Extension spring 24 is attached to the dispenser framework at 25 and to the triangular lever at 22. In the position shown in Figure 4 the spring is attempting to cause counterclockwise rotation of the triangular lever, and hence a downward motion on the pressure plate. Referring still to Figure 4, if one were to raise the pressure plate until the centerline of spring 24 passed directly over the centerline of shaft 21, then the spring would exert no torque on the triangular lever and there would be no force exerted downward on the pressure plate. Thus it can be seen that, as the pressure plate moves downward from a "dead-center" position, the centerline of the spring moves away from its position directly over the centerline of shaft 21 and this causes a progressively increasing torque to be applied to the triangular lever. The foregoing statement is strictly true only when the spring is long enough to provide a decrease in force along its own axis, as the triangular lever moves counterclockwise, which is less than the increasing torque effect caused by the increase in distance of the spring centerline from the centerline of shaft 21. In practice this is a very simple condition to meet, since the total travel of the pressure plate is small and the effect of shortening the spring as the fluid leaves the container is very much less than the effect of increasing the moment-arm in the mechanism, or the distance from the spring centerline to the centerline of shaft 21. As an essential feature of the present invention, it is only necessary to provide a means for increasing pressure-plate force which is substantially equal to the decreasing effect of progressively-decreasing hydrostatic pressure occurring as the container is emptied.
  • Figure 3 reveals that the dispensed fluid touches only the disposable flexible container 19 and the flexible outlet tube 4. Thus there is no clean-up needed when an empty container is replaced by a full one, the entire fluid flow path being replaced and renewed when the container, assembly is replaced. In order to permit easy replacement of the container fixed pinch jaw 17 may be adapted to be swung out of the way during container and outlet tube replacement. It is clear that alternative valve mechanisms may be used, as long as they are disposable and adapted to operate in association with solenoid 15. A poppet or movable-flap type of valve, for example, may be used. Also, a rotary valve may be employed, deriving its actuation from the angular motion of the cam 29. As an alternative valve mechanism, the resilient tube 4 may be bent to provide a kink seal. The minimum angle to provide a kink seal is defined for each resilient material and can be accomplished by any mechanism that bends the tube to the required angle.
  • Use of the pressure plate 11, also gives rise to a simple indicator for the quantity of fluid in the container. This is done, for example, by mounting a graduated dial (not shown) on shaft 31. The angular position of the dial is a direct indication of the amount of fluid in the bag. Alternatively, a switch or other electrical transducer may be mounted in cooperation with the levers 20 or 30 so that upon approaching a nearly empty condition of the container the position of the lever is sensed by the switch, lighting a lamp or the like.
  • A major objective of the present invention is to reduce the electrical energy required for continuous dispenser use. Two major components of electrical consumption are present; (1) the valve solenoid and (2) the light emitter portion of the proximity detector. Valve solenoid power consumption has been lowered appreciably by the use of a bistable device, as explained above. To reduce energy consumption of the other component, this invention employs a far lower pulse frequency and pulse duty cycle than are used in other proximity detectors used for general industrial purposes. Preferred values are near 5-20 pulses per second and a duty cycle of near 0.007. Also, the lowest effective emitter current is used. Figure 6 shows the block diagram of the electronic circuits of the dispenser. Reflected radiation is received by the phototransistor, whose signal is amplified and then separated from ambient light in a level clipper. The resulting signal is fed to the 0.1 second pulse generator which causes the solenoid to stroke and open the valve. An auxiliary switch on the solenoid causes, through feedback path A, a variable timer to generate a "valve-open" interval, at the end of which a signal is sent to the same 0.1 second pulse generator, stroking the solenoid again and closing the valve. An additional circuit path B stops the interval timer if the hand is removed prematurely from below the dispenser and immediately causes a solenoid pulse which closes the valve before the normal open interval has transpired.
  • An additional means for lowering consumption of electrical energy may be employed as an addition to the preferred embodiment of this invention. This is an additional circuit, not shown in the Figures, which senses the presence or absence of general room illumination in the location of the dispenser. In operation, a simple power-transistor gate, actuated by a cadmium- sulfide photoresistor located on or near the exterior of the dispenser, shuts down the dispenser electronics until such times as the room lights are turned on again. In, for example, an industrial situation wherein only a single-shift schedule is being worked, the battery life in the dispenser would be approximately tripled over that obtained without this feature.

Claims (6)

1. An automatic fluid dispenser, in particular for dispensing liquid detergents, soaps and germicides, of the type comprising:
- a flexible container for fluid integrally connected to valve means and outlet means,
- a pressure plate which is connected to a spring-driven lever for imparting a squeezing force to said flexible container, and
- proximity detector means connected to means for opening and closing said valve means,

characterized in that said spring-driven lever comprises:
(a) an extension spring (24) whose axis is near the central pivot point (21) of a first order lever (20) when the liquid container (19) is full, the said spring axis moving away from the said central pivot point of the lever as the container is emptied;
(b) a first order lever (20) whose extremities comprise the attachment point (22) of said spring (24) and the attachment point (23) of an axle (26) attached to the pressure plate (11), respectively, and
(c) sufficient length of said spring (24) so that the torque increase caused by the increasing distance of the spring center line from the central pivot point (21) as the container empties is more than the torque decrease caused by the lessening extension of the spring (24) caused by movement of the lever (20) as the container empties.
2. The fluid dispenser according to claim 1, characterized in that said means for opening said valve means is an electromagnetic actuator.
3. The fluid dispenser according to claim 2, characterized in that the said actuator is powered by batteries (14).
4. The fluid dispenser according to claim 3, characterized in that the said actuator is controlled by an electric circuit responsive to the presence of an object placed near the dispenser.
5. The fluid dispenser according to claim 4, characterized in that the said electric circuit employs emitter means (5) of visible or invisible light aimed below the dispenser and a detector means (7) of such light aimed in the same direction as said emitter means wherein the presence of an object near the dispenser and in the common paths of said emitter and detector means causes at least some of the light emitted by the emitter means to be reflected back toward the detector means, said detector means being of sufficient sensitivity to transmit a signal responsive to said near object.
6. The fluid dispenser according to claim 2, characterized in that the said actuator is a bisatable device, characterized by utilizing a brief application of electrical current to position it in a first position, and an additional brief application of electrical currentto position it in a second position, and further characterized in that a third brief application of electric current will return it to said first position.
EP84400793A 1983-04-26 1984-04-19 Fluid dispenser Expired EP0127497B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400793T ATE27895T1 (en) 1983-04-26 1984-04-19 LIQUID DISPENSER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48886783A 1983-04-26 1983-04-26
US488867 1983-04-26

Publications (2)

Publication Number Publication Date
EP0127497A1 EP0127497A1 (en) 1984-12-05
EP0127497B1 true EP0127497B1 (en) 1987-06-24

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EP84400793A Expired EP0127497B1 (en) 1983-04-26 1984-04-19 Fluid dispenser

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EP (1) EP0127497B1 (en)
JP (1) JPH0645397B2 (en)
AT (1) ATE27895T1 (en)
CA (1) CA1258836A (en)
DE (1) DE3464320D1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO1987000743A1 (en) * 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4666099A (en) * 1985-11-15 1987-05-19 Scott Paper Company Apparatus for dispensing sheet material
EP0781521A1 (en) * 1995-12-27 1997-07-02 N.V. INTERNATIONAL SANITARY WARE-MANUFACTURING CY, S.A. in verkort: N.V. INTERSAN S.A. Dispenser for a personal hygiene liquid

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JP2008296138A (en) * 2007-05-31 2008-12-11 Daikin Ind Ltd Electrostatic atomizer
JP2008296143A (en) * 2007-05-31 2008-12-11 Daikin Ind Ltd Fluid conveyance device and electrostatic atomizer
JP2008296132A (en) * 2007-05-31 2008-12-11 Daikin Ind Ltd Electrostatic atomizer
JP2009011958A (en) * 2007-07-06 2009-01-22 Daikin Ind Ltd Electrostatic spraying apparatus
JP2009022891A (en) * 2007-07-20 2009-02-05 Daikin Ind Ltd Electrostatic atomizer
JP2009172488A (en) * 2008-01-22 2009-08-06 Daikin Ind Ltd Electrostatic atomizer
BE1019327A3 (en) 2010-05-07 2012-06-05 Tatjana Yazgheche A MODULAR DOSING DEVICE AND A DIVIDING DEVICE, INCLUDING SUCH DOSING DEVICE.
CN108309117B (en) * 2018-02-12 2020-12-01 深圳市坪地奥力奇卫浴制品有限公司 Toilet soap storage box for bathroom
WO2023102618A1 (en) * 2021-12-09 2023-06-15 Marek Szymanski Dispenser device for liquids in container bag

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US3327901A (en) * 1963-12-13 1967-06-27 Jet Dispenser Corp Dispenser
FR1410288A (en) * 1964-07-27 1965-09-10 Various drinks dispenser in sealed sachets
NL6913085A (en) * 1968-09-03 1970-03-05

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000743A1 (en) * 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4722372A (en) * 1985-08-02 1988-02-02 Louis Hoffman Associates Inc. Electrically operated dispensing apparatus and disposable container useable therewith
AU593277B2 (en) * 1985-08-02 1990-02-08 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
AU664735B2 (en) * 1985-08-02 1995-11-30 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4666099A (en) * 1985-11-15 1987-05-19 Scott Paper Company Apparatus for dispensing sheet material
US4786005A (en) * 1985-11-15 1988-11-22 Scott Paper Company Apparatus for dispensing sheet material
EP0781521A1 (en) * 1995-12-27 1997-07-02 N.V. INTERNATIONAL SANITARY WARE-MANUFACTURING CY, S.A. in verkort: N.V. INTERSAN S.A. Dispenser for a personal hygiene liquid
US5782382A (en) * 1995-12-27 1998-07-21 International Sanitary Ware Manufacturing Cy Dispenser for personal hygiene liquids

Also Published As

Publication number Publication date
JPS59209570A (en) 1984-11-28
DE3464320D1 (en) 1987-07-30
ATE27895T1 (en) 1987-07-15
JPH0645397B2 (en) 1994-06-15
EP0127497A1 (en) 1984-12-05
CA1258836A (en) 1989-08-29

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