Optical valve position sensing

Details Optical valve position sensing Optical valve position sensing

1979-09-04

1981-11-10

Schwadron, Martin P.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

13762547, 137554, 137555, 128675, 250227, F16K 3700, F16K 11085

Patent

active

042992516

ABSTRACT:
Apparatus for indicating the position of a rotary valve contained in a disposable lid including light reflecting means mounted to rotate as the valve rotates, light sources mounted on a permanent base for directing light toward the light reflecting means, light transducing means mounted in the permanent base so as to receive light reflected by said reflecting means, and circuits coupled to said sources and transducing means for producing signals indicating the rotary position of the valve.

REFERENCES:
patent: 2955283 (1960-10-01), Busch-Keiser
patent: 3276472 (1966-10-01), Jinkens et al.
patent: 3610228 (1971-10-01), Temkin
patent: 3633616 (1972-01-01), Meshek
patent: 3731107 (1973-05-01), Goodwin et al.
patent: 3761719 (1973-09-01), Stoever
patent: 4088387 (1978-05-01), Lewis
patent: 4112272 (1978-09-01), Jonsson et al.
patent: 4156437 (1979-05-01), Chivens et al.

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