Radially undulating shaft seal

Details Radially undulating shaft seal Radially undulating shaft seal

1991-10-23

1993-03-02

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277134, 277153, F16J 1532

Patent

active

051902990

ABSTRACT:
A radially undulating shaft seal having a seal axis and a lip of polymeric material that surrounds the shaft to be sealed. The lip is demarcated on the inside by an inner surface that tapers out in the form of a hollow cone toward the side facing away from the space being sealed; the lip also has ribs that project radially inward distributed uniformly around it. The ribs (3) consist of undulations propagated along the inner surface (2.1) parallel with the circumference. The difference between the adjacent maximal and minimal intervals (4 & 5) along the circumference between the inner surface and the axis (6) is less than 0.3 mm.

REFERENCES:
patent: 3501155 (1970-03-01), Dega et al.
patent: 3534969 (1970-10-01), Weinland
patent: 3633927 (1972-01-01), Van Deven
patent: 4427205 (1984-01-01), Holzer et al.
patent: 4750747 (1988-06-01), Holzer

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