Soap dispenser
First Claim
Patent Images
1. A liquid soap dispenser comprises:
- a soap dispensing nozzle (6);
a liquid soap reservoir;
a plunger (21) and a cylinder (10) connected between the nozzle (6) and the reservoir so that soap is supplied from the reservoir to the cylinder (10) and from the cylinder (10) to the nozzle (6) upon relative movement in a dispensing direction of the plunger (21) within the cylinder (10);
a sensor (8) for detecting the presence of the hands of a user in the vicinity of the nozzle (6);
a magnetic core (12) coupled to the plunger (21) or the cylinder (10) the core (12) being mechanically connected to a plate (13); and
,a solenoid (14) which, in use, attracts the plate (13) to move the core (12) to cause relative movement of the cylinder (10) and plunger (21) when a current is supplied to the solenoid (14) in response to a signal from the sensor (8) indicating the presence of the hands of a user in the vicinity of the nozzle (6).
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Accused Products
Abstract
Liquid soap dispenser for sensing the presence of a user'"'"'s hands in the vicinity of a nozzle (6), and dispensing soap through the nozzle (6) in response to the detection of the user'"'"'s hands. The dispenser includes a cylinder (10) and a plunger (21) within the cylinder (10), a magnetic core (12) coupled to the cylinder (10) or the plunger (21), and a solenoid (14) which is activated in response to the detection of a user'"'"'s hands to cause relative movement of the plunger (21) within the cylinder (10) to dispense the soap. Preferably a plurality of dispensers are connected to a single reservoir of liquid soap.
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Citations
20 Claims
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1. A liquid soap dispenser comprises:
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a soap dispensing nozzle (6); a liquid soap reservoir; a plunger (21) and a cylinder (10) connected between the nozzle (6) and the reservoir so that soap is supplied from the reservoir to the cylinder (10) and from the cylinder (10) to the nozzle (6) upon relative movement in a dispensing direction of the plunger (21) within the cylinder (10); a sensor (8) for detecting the presence of the hands of a user in the vicinity of the nozzle (6); a magnetic core (12) coupled to the plunger (21) or the cylinder (10) the core (12) being mechanically connected to a plate (13); and
,a solenoid (14) which, in use, attracts the plate (13) to move the core (12) to cause relative movement of the cylinder (10) and plunger (21) when a current is supplied to the solenoid (14) in response to a signal from the sensor (8) indicating the presence of the hands of a user in the vicinity of the nozzle (6). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification