Self-closing rotary valve

Details Self-closing rotary valve Self-closing rotary valve

2007-09-04

2007-09-04

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Removable valve head and seat unit

Retained by bonnet or closure

C137S606000, C251S313000

Reexamination Certificate

active

10973214

ABSTRACT:
A water dispenser assembly includes valve cartridges for controlling the flow of cold water from the cold-water inlet and the spout. Each valve cartridge includes a rotatable stem extending from a body. The water dispenser assembly includes a self-closing feature that provides for the automatic shut-off of flow of hot water responsive to release of the handle. The self-closing feature includes a spring held onto the stem by an adaptor. The self-closing feature is contained entirely within the valve cartridge and therefore does not require any modification to the housing.

REFERENCES:
patent: 31799 (1861-03-01), Graham
patent: 2934091 (1960-04-01), Chapou
patent: 3780758 (1973-12-01), DeVries
patent: 5103857 (1992-04-01), Kuhn et al.
patent: 5417348 (1995-05-01), Perrin et al.
patent: 6863085 (2005-03-01), Marty et al.

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