Sensor-type flush valve assembly with push button device for opt

Details Sensor-type flush valve assembly with push button device for opt Sensor-type flush valve assembly with push button device for opt

1996-09-12

1997-12-23

Lee, Kevin

Valves and valve actuation

Electrically actuated valve

With nonelectrical actuator

F16K 3106

Patent

active

056999941

ABSTRACT:
A sensor-type flush valve assembly includes a hollow main valve body which confines an axial space with a top end portion and a lower end portion. The main valve body is formed with an inwardly and radially extending valve seat, a radial inlet port communicated with the axial space and disposed above the Valve seat, and a downwardly extending outlet port disposed below the valve seat and provided with a radial mounting hole which has an axis that is angularly spaced from that of the inlet port. The main valve body is further formed with an axially extending through-hole which extends from the mounting hole to the top end portion of the axial space. A movable valve piece is disposed in the axial space and normally blocks the valve seat. The valve piece has top and bottom sides and is formed with an axially extending water hole for guiding water from the bottom side to the top side of the valve piece. A push button device is mounted in the mounting hole and is operable from a normal state, wherein fluid flow from the first through-hole to the outlet port is blocked, and an operated state, wherein fluid flow from the first through-hole to the outlet port is permitted. In the operated state, reduced pressure at the top side of the valve piece will cause the valve piece to move away from the valve seat.

REFERENCES:
patent: 2861592 (1958-11-01), Collins
patent: 3938555 (1976-02-01), Swickley
patent: 4627597 (1986-12-01), Brausfeld et al.

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