Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1993-06-30
1994-10-04
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 54, F16J 1516
Patent
active
053519710
ABSTRACT:
A brush seal device for sealing a high pressure area from a low pressure area. The brush seal device comprises an annular sideplate having a first side facing the high pressure area and a second side opposite the first side, an annular backplate having a first side facing the low pressure area and a second side opposite the first side, and a plurality of bristles between the second side of the sideplate and the second side of the backplate. The backplate is moveable in a radial direction relative to the annular sideplate and the plurality of bristles extend inwardly from an outer peripheral edge of the sideplate. The brush seal device further comprises a retaining washer between the first side of the backplate and the low pressure area, wherein the retaining washer includes a cavity proximate the first side of the backplate, the cavity having an adjustable pressure therein.
REFERENCES:
patent: 2608425 (1952-08-01), Krug
patent: 3540745 (1970-11-01), Flock
patent: 5042823 (1991-08-01), Mackay et al.
patent: 5106104 (1992-04-01), Atkinson et al.
patent: 5174582 (1992-12-01), Ferguson
patent: 5213343 (1993-05-01), White, Jr.
Beres John L.
Cuchlinski Jr. William A.
EG&G Sealol Inc.
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