Pre-rinse unit spray valve mechanism

Details Pre-rinse unit spray valve mechanism Pre-rinse unit spray valve mechanism

2006-12-19

2006-12-19

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Selectively usable or variable diverse terminal outlets

And valve controlling flow

C239S569000, C239S588000, C239S526000, C239S525000, C004S678000, C137S801000

Reexamination Certificate

active

07150415

ABSTRACT:
A spray valve is configured with a fluid path that always provides dynamic water flow on both opposite surfaces of the seating flange of the valve stem when the valve is almost completely closed and when the valve is just beginning to be opened. This equalization of dynamic pressure from the incoming water flow tends to reduce the frequency of vibration that is imposed upon the valve stem and biasing member by the incoming water flow. A check valve is built into the spray valve, which has a trigger lock and a selectively removable spray disk. The valve has an outer sleeve that surrounds the valve's base member and defines a gap therebetween and is formed of mechanical shock-resilient, heat-insulating material.

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patent: 1132141 (2001-09-01), None
Partial European Search Report EP 05110514 Jan. 25, 2006.

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