Seal housing with helical element

Details Seal housing with helical element Seal housing with helical element

1994-10-11

1996-05-07

Cummings, Scott W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277134, 277203, 415111, 4151701, 415175, F16J 1534

Patent

active

055138560

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: 5195867 (1993-03-01), Stirling
patent: 5336048 (1994-08-01), Ganzon et al.

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