Pipe burst protection pressure relief apparatus for plumbing fixtures

William B Rose (Inventor), Jeffrey Gordon (Inventor)

Research output: Patent


According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release of water under elevated pressures. A normal shut-off seal included in the water regulation assembly is modified to release water in response to elevated pressure even when the seal is placed in a shut-off position. This permits relief of elevated pressure in water supply lines which might otherwise produce a burst event within the water supply lines. Preferred modified shut-off seals include a washer having soft portions which deform to permit pressure relief by release of water past the shut-off seal in response to elevated pressure and a gasket including a region of reduced thickness which deforms in response to elevated water supply pressure thereby releasing water into the socket and relieving water supply line pressure.
Original languageEnglish (US)
U.S. patent number5730168
Filing date6/14/96
StatePublished - Mar 24 1998


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