Frost free valve assembly

Details Frost free valve assembly Frost free valve assembly

2005-04-19

2005-04-19

Lee, Kevin (Department: 3753)

Fluid handling

Systems

Flow path with serial valves and/or closures

C137S454500

Reexamination Certificate

active

06880573

ABSTRACT:
A frost free faucet having a spigot assembly including a drain conduit, a sleeve assembly including an elongated pipe, and a valve assembly. The valve assembly including a ¼ turn valve and a check valve. The ¼ turn valve includes a rotatable disc with an inlet and a stationary disc with a through hole. Each disc is formed of a ceramic material, wherein upon turning the rotatable disc 90 degrees in a first direction the inlet and the through-hole align to an open position and upon turning the rotatable disc 90 degrees in a second direction, the inlet and the through-hole misalign to a closed position.

REFERENCES:
patent: 4909270 (1990-03-01), Enterante, Sr. et al.
patent: 5022429 (1991-06-01), Rollini et al.
patent: 5392805 (1995-02-01), Chrysler
patent: 5632303 (1997-05-01), Almasy et al.
patent: 5996614 (1999-12-01), Ashton
patent: 6142172 (2000-11-01), Shuler et al.

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