Serviceable check valve

Details Serviceable check valve Serviceable check valve

1992-06-01

1993-06-15

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137843, F16K 1514

Patent

active

052189937

ABSTRACT:
An improved check valve assembly of the type having a relatively flexible disc member retained between relatively rigid inflow and outflow housing portions. The inflow and outflow housing portions are removably threadably interengaged to permit serviceability of the check valve and the relatively flexible disc member has a generally perpendicular stem extending into the bore of one of the housing portions to avoid misalignment of the disc with the housing. A tongue and groove means circumferentially seals the housing portions together by deforming to a common taper angle between the tongue and groove to provide sealing therebetween.

REFERENCES:
patent: 2339101 (1944-01-01), Parker
patent: 3340899 (1967-09-01), Welty
patent: 3889710 (1975-06-01), Brost
patent: 4550749 (1985-11-01), Krikorian
patent: 4765372 (1988-08-01), Beecher
patent: 4890640 (1990-01-01), King
patent: 4958661 (1990-09-01), Holtermann

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