Shaft seal

Details Shaft seal Shaft seal

1992-01-31

1992-09-01

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

227152, 227153, F16J 1532

Patent

active

051433850

ABSTRACT:
A shaft seal including a stiffening ring 1 and a lip ring 2 made of a polymeric material connected thereto. The lip ring 2 has a cylindrical surface 3 surrounding the shaft to be sealed about, i.e. shaft 5, in a very short distance and at least one retaining rib 4 projecting from said cylindrical surface towards the inside. The cylindrical surface 3, the retaining rib 4, and the shaft 5 surround capillary-active free spaces. The cylindrical surface rises above the retaining rib 4 on both sides in axial direction and the retaining rib 4 surrounds the shaft 5 on a sine-like course and continuously.

REFERENCES:
patent: 3640542 (1972-02-01), Mowat et al.
patent: 3672690 (1972-06-01), Berens
patent: 3913925 (1975-10-01), Gyory
patent: 3929340 (1975-12-01), Peisker
patent: 3941396 (1976-03-01), Bailey et al.
patent: 4387902 (1983-06-01), Conover
patent: 4610319 (1986-09-01), Kalsi

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