Sight glass with check valve and filter

Details Sight glass with check valve and filter Sight glass with check valve and filter

1999-06-10

2000-09-12

Lee, Kevin

Fluid handling

With indicator, register, recorder, alarm or inspection means

Inspection means

137550, 137528, 73323, 285 93, F16K 3700

Patent

active

061162744

ABSTRACT:
A sight glass filter and check valve apparatus for use in a fluid line. The apparatus includes a housing, first and second couplers connected to the housing, a sight glass assembly, a filter assembly, and a check valve assembly. The housing includes a pair of coordinated apertures. Each of the couplers includes a first end and a second end with the first ends threadedly received by the housing and the second ends connected to the fluid line. The sight glass assembly is disposed within the housing in alignment with the apertures. The filter assembly is disposed between the housing and the first coupler. The check valve assembly is disposed between the housing and the second coupler.

REFERENCES:
patent: 2867213 (1959-01-01), Thomas, Jr.
patent: 3131716 (1964-05-01), Griswold et al.
patent: 3286838 (1966-11-01), Jones
patent: 3434597 (1969-03-01), Balogh et al.
patent: 3857277 (1974-12-01), Moore
patent: 4474209 (1984-10-01), Akhtarekhavari
patent: 5176173 (1993-01-01), McGarrah
patent: 5383338 (1995-01-01), Bowsky et al.
patent: 5579803 (1996-12-01), Welker
patent: 5763776 (1998-06-01), Birch et al.

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