Valve position indicating apparatus

Details Valve position indicating apparatus Valve position indicating apparatus

1992-03-20

1993-01-12

Chambers, A. Michael

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

116277, F16K 3700

Patent

active

051781875

ABSTRACT:
There is disclosed apparatus for indicating the opened and closed positions of a rotary closure member of a rotary valve in which a drum rotatable within a housing to be mounted on the valve has "open" and "closed" indicia thereon movable into positions opposite windows in the wall of the housing in response to rotation of the drum in response to rotation of the closure member.

REFERENCES:
patent: 308975 (1884-12-01), Mixer
patent: 3452766 (1969-07-01), Fenster
patent: 4494565 (1985-01-01), Sinclair et al.
patent: 4494566 (1985-01-01), Sinclair et al.
patent: 4497340 (1985-02-01), Gain, Jr.

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