Method of producing a hydrodynamic seal

Details Method of producing a hydrodynamic seal Method of producing a hydrodynamic seal

1984-09-28

1985-09-24

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

277 1, 277134, B23P 1700, E21B 3300, B61F 1522

Patent

active

045425736

ABSTRACT:
A method of producing a hydrodynamic sealing element is disclosed wherein washer-like sealing elements may be partially sliced from a cylindrical billet and formed to have an axially extending inner portion adapted to sealingly engage a rotating shaft. The inside surface of the axially extending portion is grooved to facilitate the sealing action. Grooving is accomplished by axial withdrawal action of the same cutting element that partially slices and forms the sealing element.

REFERENCES:
patent: 3857156 (1974-12-01), Clark
patent: 3929341 (1975-12-01), Clark
patent: 3939551 (1976-02-01), Clark et al.
patent: 3984113 (1976-10-01), Bentley
patent: 4131285 (1978-12-01), Denton et al.
patent: 4450614 (1984-05-01), Repella
patent: 4451050 (1984-05-01), Repella
patent: 4497496 (1985-02-01), Repella

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