Valve spool seal with one-piece housing ring having an arcuate s

Details Valve spool seal with one-piece housing ring having an arcuate s Valve spool seal with one-piece housing ring having an arcuate s

1997-01-29

1998-01-27

Cummings, Scott

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277184, 277189, F16J 1532

Patent

active

057115354

ABSTRACT:
An annular sealing unit for multiway valves. It comprises an integral housing ring, wherein an elastic sealing element is arranged. The housing ring possesses a cylindrical holding wall for attachment in a recess in the valve housing with a press fit. Furthermore it possesses two side walls projecting radially inward. The one side wall has an arcuate form and the other one is stepped. The stepped design means that there is a satisfactory engagement face for fitting the sealing unit. The arcuate shape of the first side wall prevents any skewing during pressing home during fitting in place. Furthermore a method for the manufacture of the sealing unit is provided, wherein the housing ring is manufactured by forming of the material without machining.

REFERENCES:
patent: 1941025 (1933-12-01), Stein
patent: 3250541 (1966-05-01), McKinven, Jr.
patent: 3442520 (1969-05-01), Kupchick
patent: 5171025 (1992-12-01), Stoll et al.
patent: 5513674 (1996-05-01), Frisch
patent: 5609343 (1997-03-01), Asou et al.

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