초록 ▼

A self-closing valve, having means to discharge a predetermined volume of water for each cycle of operation, is disclosed. The valve includes the arrangement of timing means which determines the elapsed time for its operational cycle, a one-way valve means to expel air from the metering chamber duri

A self-closing valve, having means to discharge a predetermined volume of water for each cycle of operation, is disclosed. The valve includes the arrangement of timing means which determines the elapsed time for its operational cycle, a one-way valve means to expel air from the metering chamber during the actuating cycle of the valve, and air metering means which replaces air entering the mixing chamber at a constant uniform rate, all of which cooperate with the valving means to discharge a predetermined volume of water.

대표청구항 ▼

A self-closing faucet comprising: an actuating member, a valve body defining a water passageway, an inlet, an outlet and a valve means mounted in said passageway and positioned between said inlet and outlet openings; said valve means including an axially mounted reciprocating valve stem, a stationar

A self-closing faucet comprising: an actuating member, a valve body defining a water passageway, an inlet, an outlet and a valve means mounted in said passageway and positioned between said inlet and outlet openings; said valve means including an axially mounted reciprocating valve stem, a stationary valve seat positioned between said inlet and outlet openings, and an axially displaceable valve seat mounted on one end of said valve stem; p1 a shiftable air metering means, said air metering means including an air chamber and said a piston, said piston being movable within said air chamber and being operably coupled to said valve stem when said actuating member engages and shifts said air metering means; one-way valve means, mounted on said valve body, is operably coupled to said air chamber so that air is expelled through said one-way valve means to the atmosphere when said piston is shifted axially, at the same time, said valve stem is shifted away from said fixed valve seat, allowing water flow through said discharge passageway; and said air metering means having an orifice to control the rate of flow of air into said air chamber, thereby providing a substantially constant rate of water discharged through said valve outlet opening as said reciprocating valve stem automatically returns to its closed position.