초록 ▼

A soap dispenser includes a soap supply, a motor driven pump connected by tubing to the soap supply and a soap output device connected by tubing to the motor driven pump. The electric drive circuit for operating the pump motor includes a sensor for detecting a user's hands positioned to receive soap

A soap dispenser includes a soap supply, a motor driven pump connected by tubing to the soap supply and a soap output device connected by tubing to the motor driven pump. The electric drive circuit for operating the pump motor includes a sensor for detecting a user's hands positioned to receive soap from the output device. There is a forward motor control circuit connected to the sensor and to the pump motor and responsive to a start signal from the sensor to drive the pump motor in a forward direction to supply soap to the output device. There is a volume adjust circuit connected to the forward motor control circuit and to the sensor to provide a stop signal to the forward motor control circuit a predetermined time period after receipt of a start signal from the sensor. There is a reverse motor control circuit connected to the pump motor and to the volume adjust circuit and responsive to a stop signal from the volume adjust circuit to drive the pump motor in a reverse direction to reverse the flow of soap to the output device.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A soap dispenser including a soap supply, a motor driven pump connected by tubing to the soap supply, a soap output device connected by tubing to the motor driven pump,electric cir

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A soap dispenser including a soap supply, a motor driven pump connected by tubing to the soap supply, a soap output device connected by tubing to the motor driven pump,electric circuit means for operating said pump motor including a sensor for detecting a user's hands positioned to receive soap from the output device, a forward motor control circuit connected to said sensor and pump motor and responsive to a start signal from said sensor to drive said pump motor in a forward direction to supply soap to said output device,a volume adjust circuit connected to said forward motor control circuit and to said sensor to provide a stop signal to said forward motor control circuit a predetermined time period after receipt of a start signal from said sensor, andreverse motor control means connected to said pump motor and said volume adjust circuit and responsive to a stop signal from said volume adjust circuit to drive said pump motor in a reverse direction to reverse the flow of soap to said output device.