Filter with pressure sensor mounted in housing end

Details Filter with pressure sensor mounted in housing end Filter with pressure sensor mounted in housing end

1997-03-18

1999-01-12

Drodge, Joseph W.

Liquid purification or separation

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

Fluid pressure responsive

210171, 210411, 210443, 96421, 73756, B01D 35143

Patent

active

058582240

ABSTRACT:
A fluid filter (10) includes a housing (14), a mounting head (16), a filter element (34), and a pressure sensor (54) mounted to the housing (14) and having a high pressure port (58) communicating with the high pressure side (36) of the filter element (34) and having a low pressure port (60) communicating with the low pressure side (38) of the filter element (34) to sense the pressure drop across the filter element.

REFERENCES:
patent: 3044475 (1962-07-01), Thompson
patent: 3495566 (1970-02-01), Pall
patent: 3547069 (1970-12-01), Tao
patent: 3591003 (1971-07-01), Cooper
patent: 3646906 (1972-03-01), Hammer
patent: 4783256 (1988-11-01), Cooper et al.
patent: 5462679 (1995-10-01), Verdegan et al.
patent: 5702592 (1997-12-01), Suri et al.
patent: 5718822 (1998-02-01), Richter
"Rosedale Hydraulic T-Filters for Suction and Return Lines" brochure, Rosedale Products, Inc., Box 1085, Ann Arbor, MI 48106, admitted prior art at least as early as 1995.
"Hycon Clogging Indicators: Mechanical--Electrical--Electronic", Catalog A 7.050.3/Dec. 1986, Hycon Corporation, P.O. Box 22110, Lehigh Valley, PA 18002-2110.
"Filter Head Mounted Element Change Indicator With Electrical Output", admitted prior art at least as early as 1995.
"Visual, Filter Head Mounted Element Change Indicator A", admitted prior art at least as early as 1995.
"Visual, Filter Head Mounted Element Change Indicator B", admitted prior art at least as early as 1995.
"Element Change Indicator With Electrical Output Mounted On Bottom of Filter", admitted prior art at least as early as 1995.

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