Rotating sealing device

Details Rotating sealing device Rotating sealing device

1996-11-21

1998-09-01

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Process of dynamic sealing

Close proximity seal

277302, 277304, 277347, 277409, 277410, 277431, F16J 1540, F16J 1543

Patent

active

057999511

ABSTRACT:
A rotating sealing device for sealing between a wall separating two mediums under substantially different pressure and a rotatable shaft utilizes a combination of a liquid meatal seal comprising at least one liquid metal ring and a shield means which prevents contamination of the metal ring by gases coming into contact with the liquid metal. Magnetic fluid seal, a ring of an oil material, or inert gas may be used as a shield to protect the liquid metal.

REFERENCES:
patent: 2678835 (1954-05-01), Clark, Jr.
patent: 3038731 (1962-06-01), Milleron
patent: 3620584 (1971-11-01), Rosensweig
patent: 3778123 (1973-12-01), Hendler et al.
patent: 4407518 (1983-10-01), Moskowitz et al.
patent: 4485628 (1984-12-01), Jones
patent: 4577340 (1986-03-01), Carlson et al.
patent: 4605233 (1986-08-01), Sato
patent: 5118118 (1992-06-01), Tadi et al.
patent: 5472215 (1995-12-01), Gilbert

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