Gilberto B Iglesias

US Patent:

42879051, Sep 8, 1981

Filed:

Apr 10, 1980

Appl. No.:

6/138888

Inventors:

Gilberto Iglesias - Miami FL

International Classification:

F16K 1518

US Classification:

137102

Abstract:

A pair of interlocked flap valves within a faucet, such as a hose bib, provides for a fluid flow from a pressurized source through a discharge outlet while preventing a back flow to the source due to a lower pressure at the source than exists downstream as would occur within a resilient garden hose filled with water, sealed off, and being heated by the sun. A first flap valve, comprising a check valve, automatically closes when the main line pressure drops substantially or completely ceases, or by backflow pressures. When the check valve closes, an interlock connection thereof to a second flap valve, comprising a relief valve, simultaneously opens said relief valve relative to a relief port for outward discharge of the fluid. A manual control knob provides for selective "on-off" operation of the check valve.