B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 3/02 (2006.01)
Patent
CA 2062482
SV-275 (35- ) PRESSURE WASHER ABSTRACT OF THE DISCLOSURE A pressure washer for delivering liquid under high pressure has an inlet conduit connected to a liquid supply, an outlet conduit connected to a spray nozzle with a valve which is selectively openable for spraying liquid and a plurality of piston operated pumping cylinders connected in parallel between the inlet conduit and the outlet conduit. A bypass conduit recirculates liquid from the outlet to the inlet conduit. A valve in the bypass conduit selectively permits leakage from the outlet conduit when the spray nozzle valve is open and opens communication between the outlet conduit and the bypass conduit when the spray nozzle valve is closed and pressure builds up in the outlet conduit.
Berfield Robert C.
Marks & Clerk
Shop-Vac Corporation
LandOfFree
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