Plumbing fixture check stop

Details Plumbing fixture check stop Plumbing fixture check stop

1989-03-24

1990-04-03

Cohan, Alan

Fluid handling

Systems

Flow path with serial valves and/or closures

13754321, F16K 1502

Patent

active

049131826

ABSTRACT:
A check stop for use at the inlet of a plumbing fixture such as a flush valve includes a conduit and a sleeve attached at the inlet of the conduit. The sleeve has an inlet and an outlet and there is a valve member movable to close the sleeve inlet. There are water passages formed between the exterior of the valve member and the interior of the sleeve. A spring urges the valve member into a closure position with the sleeve inlet. There is an adjustment member accessible from outside the conduit and having a interior portion positioned within the spring and movable toward and away from the valve member. Water pressure acting on the valve member causes movement thereof away from the sleeve inlet as determined by the position of the adjustment member.

REFERENCES:
patent: 2697915 (1954-12-01), Chisholm
patent: 2745432 (1956-05-01), Williams
patent: 4406302 (1983-09-01), Olesen
patent: 4541455 (1985-09-01), Hauser

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