Rotary shaft wave seal

Details Rotary shaft wave seal Rotary shaft wave seal

1987-09-14

1988-12-06

Griffin, Donald A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

29458, 277153, F16J 1532, B23P 1100

Patent

active

047891661

ABSTRACT:
A seal for use about a rotatable shaft comprises an annular cylindrical elastic sealing element having a radially inwardly extending flange defining a sealing lip at its radially innermost edge. An axially undulatory wave spring molded internally of the flange induces axial undulations in the sealing lip thereon while acting as a garter spring to maintain the lip in contiguity with a shaft passing therethrough. Upon rotation of the shaft, the undulating sealing lip deflects the fluid to be contained therewith away from the seal, thereby increasing seal effectiveness.

REFERENCES:
patent: 2672359 (1954-03-01), Fisher et al.
patent: 2736583 (1956-02-01), Marvin
patent: 2736584 (1956-02-01), Riesing
patent: 3941396 (1976-03-01), Bailey et al.
patent: 3962776 (1976-06-01), Mikami
patent: 4531747 (1985-07-01), Miura

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