Magnetic fluid sealing device

Details Magnetic fluid sealing device Magnetic fluid sealing device

1996-10-02

1998-10-27

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Process of dynamic sealing

Close proximity seal

277410, F16J 1543

Patent

active

058268855

ABSTRACT:
A magnetic fluid sealing device adapted to enable rotary motion to be coupled by a shaft between an ambient high pressure environment to a high temperature, low pressure environment. Gaps in the shaft are dynamically sealed by a magnetic seal which uses a thin walled pole piece, a high power magnet and magnetic fluid. The pole piece and an extension thereof form a vacuum envelope for the remainder of the device, eliminating the need for the usual O-ring static seals.

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patent: 5557900 (1996-09-01), Pop, Sr.
Genmark Pole Piece shown in drawings 94111810, 94111801 and 94111800 sold 16 Feb. 1995.

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