Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
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
Fratzke Lawrence F.
Westervelt Ralph
Caterpillar Tractor Co.
Hart Charles N.
Mukai R. G.
LandOfFree
Pressure differential switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure differential switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure differential switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1090391