Bearing seal for a centrifuge

Details Bearing seal for a centrifuge Bearing seal for a centrifuge

1984-12-05

1986-04-22

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 12, 277 24, 277 53, F16J 15447, F16J 1540

Patent

active

045837473

ABSTRACT:
A bearing seal between the internal space of a centrifuge and its drive part utilizes, in a preferred embodiment, three similar sealing elements arranged in axial succession to each other and pressed against a protective bushing of the drive shaft in an elastic manner. The protective bushing of the drive shaft has a reduced diameter in the contact area of the sealing element closest to the internal space of the centrifuge, so that protective gas introduced into the space between the sealing elements and the subsequent sealing elements flows into the internal space of the centrifuge.

REFERENCES:
patent: 1100872 (1914-06-01), Hall
patent: 1149578 (1915-08-01), Hall
patent: 1575061 (1926-03-01), Jones et al.
patent: 3472518 (1969-10-01), Harlan
patent: 3601307 (1971-08-01), Shapiro
patent: 3643964 (1972-02-01), Snelling et al.
patent: 3659662 (1972-05-01), Dicky
patent: 3729128 (1973-04-01), Reed
patent: 4087097 (1978-05-01), Bossens et al.
patent: 4350283 (1982-09-01), Leonian
patent: 4386780 (1983-06-01), Dernedde
patent: 4405136 (1983-09-01), Elsing et al.

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