Flow monitoring devices

Details Flow monitoring devices Flow monitoring devices

1976-06-03

1977-12-27

Yasich, Daniel M.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

307118, 340239R, 356181, G01N 2126, G08B 2100

Patent

active

040656756

ABSTRACT:
This invention relates to a liquid flow monitoring device which uses a probe comprising an energy transmitter spaced apart from an energy receiver such that the bridging of the gap between the transmitter and receiver by flowing liquid emits a signal.

REFERENCES:
patent: 2523363 (1950-09-01), Gehman
patent: 2660063 (1953-11-01), Sawers
patent: 2831452 (1958-04-01), Haynes
patent: 3213438 (1965-10-01), Felice et al.
patent: 3274539 (1966-09-01), Sykes
patent: 3441637 (1969-04-01), Topol
patent: 3550651 (1970-12-01), McKellen et al.
patent: 3636360 (1972-01-01), Oishi et al.
patent: 3844171 (1974-10-01), Rodger
patent: 3898637 (1975-08-01), Wolstenholme
Publ., "Sonac. New Ultrasonic . . . System," Delavan Mfg. Co., Bulletin 41-42, Nov. 1962, 6 pages.

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