EP0127497B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fluid dispenser
Assignee: Cambio Ragione Sociale calgon Corp
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Filing: 1984-04-19
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Granted: 1987-06-24
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Expires: 2004-04-19
Abstract
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).
Inventors
- 👤 John R. Acklin
- 👤 Lee W. Bush
- 👤 Joseph J. Danna
- 👤 John L. Devitt
- 👤 George A. Rauh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 13:33
CPC Classifications
A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1217
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
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.
Claim 2
Dependent Claim
212 words
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.
Claim 3
Dependent Claim
21 words
The fluid dispenser according to claim 1, characterized in that said means for opening said valve means is an electromagnetic actuator.
Claim 4
Dependent Claim
18 words
The fluid dispenser according to claim 2, characterized in that the said actuator is powered by batteries (14).
Claim 5
Dependent Claim
30 words
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.
Claim 6
Dependent Claim
100 words
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.
Claim 7
Dependent Claim
66 words
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.
References Cited (Backward Citations)
No citation records indexed.
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