Valve assembly

Details Valve assembly Valve assembly

1993-08-26

1995-06-27

Rivell, John

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

251 93, 251285, 251288, 116202, 116277, F16K 3700, F16K 5100

Patent

active

054271401

ABSTRACT:
A valve assembly is disclosed which comprises a screw spindle threadingly mounted to a valve housing and having a tap handle secured to a first end and a valve disc located at a second end, and wherein rotation of the spindle causes the valve assembly to move between an open and a closed position. The valve assembly further incorporates an indicator arranged to indicate a predetermined degree of rotation of the spindle from the closed position.

REFERENCES:
patent: 1017224 (1912-02-01), MacBeth
patent: 1408611 (1922-03-01), Larner
patent: 1820772 (1931-08-01), Blake
patent: 3361148 (1968-01-01), Turek
patent: 3537473 (1970-11-01), DeZurik, Jr.
patent: 3565089 (1971-02-01), Thompson
patent: 3712587 (1973-01-01), Specht
patent: 3717171 (1973-02-01), Fawkes
patent: 3946756 (1976-03-01), Specht
patent: 4064904 (1977-12-01), Tolnai
patent: 4156437 (1979-05-01), Chivens et al.
patent: 4299251 (1981-11-01), Dugas
patent: 4694512 (1987-09-01), Knebel et al.

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