Brush seal

Details Brush seal Brush seal

1986-04-18

1988-11-01

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

165 81, 165159, 277 94, 277184, 277189, F16J 15447

Patent

active

047813881

ABSTRACT:
A brush seal for first and second spaced, adjoining members which are capable of undergoing universal relative displacement, the seal comprising a plurality of flexible bristles having opposite ends, one of which is secured in a clamp causing the bristles to fan outwardly towards the other end. The second member supports a joint defining a space with a throat into which the fan of bristles enter and are resiliently squeezed at the throat. The free ends of the bristles are spaced for free movement in the joint lengthwise of the bristles to accommodate relative movement of the members towards and away from one another. Relative movement of the members longitudinally in their respective planes in taken up by sliding of the bristles within the joint while relative movement of the members transversely in their respective planes is taken up by bending of the bristles at the throat. In the case of all relative movement of the members, the bristles maintain sealing contact with the joint at the throat.

REFERENCES:
patent: 885032 (1908-04-01), DeFerranti
patent: 2363526 (1944-11-01), Hobbs
patent: 2517512 (1950-08-01), Tigges et al.
patent: 2666624 (1954-01-01), Flurschutz
patent: 2878048 (1959-03-01), Peterson
patent: 3020185 (1962-02-01), Moffitt, Jr. et al.
patent: 3181602 (1965-05-01), Johnstone
patent: 3183967 (1965-05-01), Mettenleiter et al.
patent: 4036293 (1977-07-01), Tank et al.
patent: 4159828 (1979-07-01), Ostling et al.
patent: 4335784 (1982-06-01), Arvidsson
patent: 4548260 (1985-10-01), Stachura
patent: 4586564 (1986-05-01), Hagfmeister
patent: 4679619 (1987-07-01), Wohrl et al.

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