초록 ▼

A remote control apparatus for power washers includes a water line having a flow control switch device which is in series therewith. The flow control switch device includes an electrical flow responsive switch which is actuated in response to water flow through said line and is deactuated in respons

A remote control apparatus for power washers includes a water line having a flow control switch device which is in series therewith. The flow control switch device includes an electrical flow responsive switch which is actuated in response to water flow through said line and is deactuated in response to the absence of such flow. A time-delay starting switch device is connected to the flow responsive switch and includes a starting switch which is actuated after a predetermined period of time in response to actuation of the flow responsive switch and is deactuated directly in response to deactuation of the flow responsive switch. The starting switch device further includes a timer for operating the starting switch which is activated in response to actuation of the flow responsive switch and is reset upon deactuation of the flow responsive switch. A relay for controlling a motor operated pump is actuated and deactuated responsive to the operation of the starting switch. A time-delay stopping switch device is connected to the flow responsive switch and includes a stopping switch which is actuated after a predetermined period of time in response to deactuation of the flow responsive switch and is deactuated directly in response to actuation of the flow responsive switch. The stopping switch device further includes a timer for operating the stopping switch which is activated in response to deactuation of the flow responsive switch and is reset upon actuation of the flow responsive switch. The aforesaid relay is responsive to actuation and deactuation of the stopping switch for controlling correspondingly the water pump.

대표청구항 ▼

Remote control apparatus for power washers comprising a water line having a flow control switch device in series therewith, said water line having input and output ends, the input end being adapted to be connected to a source of water, the output end being adapted to be connected to the input side o

Remote control apparatus for power washers comprising a water line having a flow control switch device in series therewith, said water line having input and output ends, the input end being adapted to be connected to a source of water, the output end being adapted to be connected to the input side of a motor operated water pump, said flow control switch device including an electrical flow responsive switch which is actuated in response to water flow through said line and is deactuated in response to the absence of such flow, a time-delay starting switch device connected to said flow responsive switch and including a starting timer switch which is actuated after a predetermined period of time in response to actuation of said flow responsive switch and is deactuated directly in response to deactuation of said flow responsive switch, said starting switch device further including a timer for operating said starting timer switch which is actuated in response to actuation of said flow responsive switch and is reset upon deactuation of said flow responsive switch, control means responsive to actuation and deactuation of said starting timer switch for controlling correspondingly an energizing circuit for an electric pump motor, a time-delay stopping switch device connected to said flow responsive switch and including a stopping timer switch which is actuated after a predetermined period of time in response to deactuation of said flow responsive switch and is deactuated directly in response to actuation of said flow responsive switch, said stopping switch further including a timer for operating said stopping timer switch which is activated in response to deactuation of said flow responsive switch and is reset upon actuation of said flow responsive switch, said control means being responsive to actuation and deactuation of said stopping timer switch for controlling correspondingly said pump motor energizing circuit.