Methods for resetting stalled pumps in electronically controlled dispensing systems
First Claim
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1. A method for resetting a stalled pump in a fluid dispensing system, the method comprising:
- detecting the presence of a user'"'"'s hand to start a pump actuator associated with a refill container;
monitoring a current sensor associated with a motor that actuates said pump actuator by rotating a motor shaft in a first direction; and
reversing said motor shaft in a second direction to return said pump actuator to a starting position when said current sensor detects a predetermined level of current.
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Abstract
A system and related method is disclosed for resetting a stalled pump in a fluid dispensing system. In one embodiment, the presence of a user'"'"'s hand is detected to start a pump actuator associated with a refill container. A controller associated with a motor actuates the pump actuator by rotating a motor shaft in a first direction. The current sensor is monitored and when the current sensor detects a predetermined level of current the motor shaft is reversed to a starting position.
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Citations
5 Claims
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1. A method for resetting a stalled pump in a fluid dispensing system, the method comprising:
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detecting the presence of a user'"'"'s hand to start a pump actuator associated with a refill container; monitoring a current sensor associated with a motor that actuates said pump actuator by rotating a motor shaft in a first direction; and reversing said motor shaft in a second direction to return said pump actuator to a starting position when said current sensor detects a predetermined level of current. - View Dependent Claims (2, 3)
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4. A dispensing system comprising:
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a refill container filled with product; a housing adapted to accept said refill container; a pump maintained by either said refill container or said housing so as to dispense product from said refill container, wherein said pump has a loading position and a dispensing position; and a mechanism associated with said pump wherein said mechanism is configured to automatically return said pump to said loading position when a stall condition is detected. - View Dependent Claims (5)
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Specification