Shaft seal

Details Shaft seal Shaft seal

2007-01-09

2007-01-09

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S431000

Reexamination Certificate

active

11007731

ABSTRACT:
The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member positioned on a second member, and a hydraulic seal for preventing gas leakage from a high pressure source to a low pressure compartment through the mounting member.

REFERENCES:
patent: 1932214 (1933-10-01), Hornschuch
patent: 2873986 (1959-02-01), Murray
patent: 3068801 (1962-12-01), Murray
patent: 3531131 (1970-09-01), Hummer
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patent: 4460180 (1984-07-01), Koistinen
patent: 5239750 (1993-08-01), Wright
patent: 5813674 (1998-09-01), Dickie et al.
patent: 5904356 (1999-05-01), Mundy
patent: 6164658 (2000-12-01), Collin
patent: 6516618 (2003-02-01), Bock
patent: 6568688 (2003-05-01), Boeck
patent: 6845987 (2005-01-01), McCutchan
patent: 2-44168 (1990-03-01), None
patent: 2-146274 (1990-12-01), None
patent: 2003-148632 (2003-05-01), None

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