Seal housing with helical element

Details Seal housing with helical element Seal housing with helical element

1996-12-13

1998-09-29

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Diverse and distinct dynamic seals

277430, 277408, 415111, 4151701, 415175, F16J 1534

Patent

active

RE0359092

ABSTRACT:
A cavity in the housing, which confines the seal therewithin, has an annular wall surface which is modified to direct liquid from the cavity towards the impeller. In one embodiment, the wall surface has a helical land formed therein. In another embodiment, a helical-land forming insert is set within the cavity and in engagement with the wall surface.

REFERENCES:
patent: 1826057 (1931-10-01), Dobbins
patent: 2329990 (1943-09-01), Hornschuch
patent: 3004782 (1961-10-01), Meermans
patent: 3076412 (1963-02-01), Harker et al.
patent: 3273906 (1966-09-01), Pennington
patent: 3558238 (1971-01-01), Van Herpt
patent: 3693985 (1972-09-01), Dillner
patent: 4243230 (1981-01-01), Baker et al.
patent: 4795167 (1989-01-01), Otsuka
patent: 5188509 (1993-02-01), Shimanuki et al.
patent: 5195867 (1993-03-01), Stirling
patent: 5336048 (1994-08-01), Ganzon et al.
patent: 5553868 (1996-09-01), Dunford

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