Dynamic-static shaft seal

Details Dynamic-static shaft seal Dynamic-static shaft seal

1974-12-19

1976-07-20

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277165, 277186, 277227, F16J 1524

Patent

active

039703215

ABSTRACT:
A seal engageable with the outer surface of a shaft and fittable within an inwardly open groove formed in a housing between a high-pressure zone and a low-pressure zone has a cup packing integrally bonded to a supple pressure-distributing ring. The packing is of asymmetrical section and is formed with a radially extending flange and with a lip extending from one axial side of the flange toward the high-pressure zone with the inner face of the lip lying resiliently against the outer surface of the shaft. The pressure-distributing ring has an end surface bonded to the one side of the flange, an inner periphery formed with a recess snugly receiving and bonded to the outer face of the lip, and an outer periphery resiliently engaging the interior of the housing groove. A nonresilient antiextrusion ring is received in the packing at the other axial side of the packing.

REFERENCES:
patent: 2386873 (1945-10-01), Mercier
patent: 2973978 (1961-03-01), Oppenheim
patent: 3218087 (1965-11-01), Hallesy
patent: 3810639 (1974-05-01), Scannell
patent: 3854735 (1974-12-01), Maurer et al.

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