Grounding and conductivity improvement for ferrofluid seals

Details Grounding and conductivity improvement for ferrofluid seals Grounding and conductivity improvement for ferrofluid seals

1997-09-22

2000-02-29

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

277409, F16J 1500

Patent

active

060299789

ABSTRACT:
A motor is disclosed which includes a shaft and a hub rotating relative to one another and defining a bore therebetween. Also disclosed is a magnetic fluid seal which includes pole pieces supported from the hub, the pole pieces extend toward the shaft. The pole pieces sandwich a non-conducting magnet in a space between the pole pieces. In addition, a contacting process is supported from one of the pole pieces for making electrical contact with the other pole piece to enhance electrical conductivity between the hub and shaft.

REFERENCES:
patent: 4252328 (1981-02-01), Raj et al.
patent: 4357022 (1982-11-01), Raj
patent: 4506895 (1985-03-01), Raj
patent: 4527802 (1985-07-01), Wilcock et al.
patent: 4673997 (1987-06-01), Gowda et al.
patent: 4708350 (1987-11-01), Mizumoto et al.
patent: 4817964 (1989-04-01), Black, Jr.
patent: 4830384 (1989-05-01), Raj et al.
patent: 5018751 (1991-05-01), Raj et al.
patent: 5118118 (1992-06-01), Tadi et al.
patent: 5161902 (1992-11-01), Fujii
patent: 5267737 (1993-12-01), Cossette et al.

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