Drive for banded washer type seal

Details Drive for banded washer type seal Drive for banded washer type seal

1987-05-11

1988-10-25

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 22, 277 26, 277815, 277 92, 277 88, F16J 1536, F16J 1538

Patent

active

047798769

ABSTRACT:
An improved drive for a banded sealing ring or washer in a rotary mechanical seal. The washer, usually a ceramic washer, is provided with an annular band surrounding its outer periphery which includes an outwardly extending flange. The seal includes a sleeve mounted on a rotatable shaft of a pump, which houses the washer in coaxial relation. It further includes a flange extending radially, which defines means in contact with the band of the washer, such that driving engagement is effected between the sleeve flange and the washer band and the washer is caused to rotate with the sleeve.

REFERENCES:
patent: 2806720 (1957-09-01), Meyer
patent: 2917329 (1959-12-01), Laser
patent: 2937039 (1960-05-01), Santapa
patent: 2948555 (1960-08-01), Wright
patent: 2995390 (1961-08-01), Gardner
patent: 3480284 (1969-11-01), Voitik
patent: 3782735 (1974-01-01), Novosad
patent: 3895811 (1975-07-01), Richard et al.

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