Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1981-05-28
1983-02-08
Adee, John
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
210133, 210168, B01D 2710
Patent
active
043728480
ABSTRACT:
An oil filter apparatus including a disc element (16) operable to be releasably mounted between a conventional oil filter cannister (14) and a machine (10) to be lubricated. The disc element has generally mutually parallel and opposing end surfaces (50, 52) operable to be mounted between the machine and the oil filter and abut against and sealingly engage with compatible surfaces on both members. The disc element (16) includes a first disc passage (56) extending between the opposing surfaces of the disc and being in fluid communication between a first oil passage (3) carrying oil under pressure within the machine to be lubricated and the inlet side of an oil filter element. A second disc passage (58) extends between the opposite surfaces of the disc and is in fluid communication with an oil outlet port (40) of the filter element and a second oil passage (42) of the machine downstream of the first oil passage. A bypass passage (60) extends within the disc element and communicates with the first and second disc passages to permit oil to bypass the oil filter cannister. A normally closed check valve (70) is positioned within the bypass passage (60) and has an upstream side in fluid communication with the first disc passage (56) and a downstream side in fluid communication with the second disc passage (58). An electrical contact member (100) is biased against the check valve (70) and forms a part of a transistized switching circuit (84) operable to actuate a warning light (88), buzzer, etc. when system oil bypasses the oil filter through the disc element.
REFERENCES:
patent: 2544269 (1951-03-01), Le Clair
patent: 4142973 (1979-03-01), Kachman
Adee John
Byrne John J.
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