Liquid cooled ferrofluid-type rotating seals

Details Liquid cooled ferrofluid-type rotating seals Liquid cooled ferrofluid-type rotating seals

1986-04-01

1987-09-29

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277135, F16J 1540, F16J 1544, F16J 1554

Patent

active

046964819

ABSTRACT:
A ferrofluid rotary-shaft seal apparatus of extended seal life suitable for use as an exclusion seal in vacuum or other demanding applications which seal apparatus comprises:

REFERENCES:
patent: 2587077 (1952-02-01), Winther
patent: 3700248 (1972-10-01), Teske et al.
patent: 3746407 (1973-07-01), Stiles et al.
patent: 4054293 (1977-10-01), Hoeg et al.
patent: 4440402 (1984-04-01), Pinkus et al.
patent: 4514987 (1985-05-01), Pundak et al.

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