Pressure differential switch

Details Pressure differential switch Pressure differential switch

1975-10-09

1977-02-01

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Fluid pressure responsive

116 70, 116117R, 200 83N, 200 83P, 210111, B01D 3514

Patent

active

040060837

ABSTRACT:
Apparatus for indicating a clogged condition of a fluid filter or the like. The apparatus includes an electrical switch structure and a pressure-responsive element carried within the chamber to be responsive to the fluid pressure differential existing across the filter. The switch includes a threaded screw element adapted to adjustably engage the fluid pressure-responsive element in the chamber which may comprise a snap action element providing a positive instantaneous indication of the pressure across the filter reaching the preselected elevated value indicative of undesirable clogging of the filter.

REFERENCES:
patent: 2338750 (1944-01-01), Winton
patent: 2477801 (1949-08-01), Hathaway
patent: 2671893 (1954-03-01), Van Scoy et al.
patent: 2692684 (1954-10-01), Hallinan
patent: 2798129 (1957-07-01), Reese et al.
patent: 2839630 (1958-06-01), Wood
patent: 3119437 (1964-01-01), Roosa
patent: 3164164 (1965-01-01), Pall et al.
patent: 3196974 (1965-07-01), Barnes, Jr.
patent: 3331509 (1967-07-01), Gray, Jr.
patent: 3395802 (1968-08-01), Rosaen
patent: 3423552 (1969-01-01), Sipin
patent: 3689719 (1972-09-01), Phillips et al.
patent: 3845260 (1974-10-01), Lohr
patent: 3947648 (1976-03-01), Muterel

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