B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 3/02 (2006.01) B05B 9/03 (2006.01) F04B 49/03 (2006.01) F16K 31/363 (2006.01)
Patent
CA 2543921
A pressure washer has an inlet and an outlet, a pump assembly in fluid communication with the inlet and the outlet, and a motor which drives the pump assembly. A flow switch is disposed upstream of the pump assembly, and is electrically connected to the motor. Configured to be extended with a biasing structure towards the inlet, an axially displaceable flow plunger seals the pump assembly from fluid communication with the inlet. The flow plunger is also configured to be retracted when a fluid force of a fluid from the inlet overcomes the bias of the biasing structure. When the flow plunger is retracted, the flow plunger automatically turns the pressure washer motor on.
Midwest Air Technologies Inc.
Perley-Robertson Hill & Mcdougall Llp
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