Patent ID: 7694935

Claim:
A water faucet comprising: a housing including a chamber formed therein, and including a water inlet communicating with said chamber of said housing for receiving a water, and including a water outlet for discharging the water, a receptacle engaged into said chamber of said housing and including a compartment formed in an upper portion, and a passage formed in a lower portion and communicating with said compartment and said water inlet of said housing, and including at least one conduit formed in said receptacle and communicating with said passage for communicating said passage with said water outlet of said housing, and including a valve seat, a valve stem slidably engaged through said compartment and said passage of said receptacle and sealingly engaged with said receptacle for separating said compartment and said passage of said receptacle from each other and for preventing the water from flowing from said passage into said compartment of said receptacle, said valve stem including a valve member for selectively and sealingly engaging with said valve seat of said receptacle and for selectively blocking said passage of said receptacle and for preventing the water from flowing from said water inlet of said housing into said passage and said at least one conduit of said receptacle and into said water outlet of said housing, and said valve stem including a cavity formed therein, means for biasing said valve member of said valve stem to engage with said valve seat of said receptacle, and a piston attached to said valve stem and slidably engaged in said compartment of said receptacle and sealingly engaged with said receptacle for separating said compartment of said receptacle into a lower space and an upper space, and said valve stem including at least one orifice for communicating said cavity of said valve stem with said lower space of said receptacle, and including at least one aperture for communicating said cavity of said valve stem with said upper space of said receptacle and for allowing a fluid received in said compartment of said receptacle to flow between said lower space and said upper space of said receptacle and to flow into and out of said cavity of said valve stem through said at least one orifice and said at least one aperture of said valve stem, the water being allowed to flow from said water inlet of said housing into said passage and said at least one conduit of said receptacle and into said water outlet of said housing when said valve member of said valve stem is disengaged from said valve seat of said receptacle, and when said valve stem is moved against said biasing means.