Sealing unit

Details Sealing unit Sealing unit

1988-12-21

1990-10-16

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 39, 277 68, 277 95, 277133, 277134, 277152, F16J 1532, F16J 1534

Patent

active

049629360

ABSTRACT:
A unitized seal (A) for sealing between a stationary shaft (16) and the bore of a rotating housing is comprised of a rotary member (1) having an outer cylindrical portion (1a), a flange portion (4) extending radially inwardly from one end of the cylindrical portion (1a), and a curved or tapered portion (5) at the radially innermost portion of the flange portion (4), a stationary member (10) having at least a main seal lip (14), and at least an auxiliary dust lip (6). The seal lip (14) contacts the inside surface (3) of the flange portion (4) of the rotary member and the dust lip (6) contacts against the curved or tapered portion (5) of the rotary member.

REFERENCES:
patent: 2646999 (1953-07-01), Barske
patent: 2938744 (1960-05-01), Fritch
patent: 3016251 (1962-01-01), Gilbert
patent: 3022081 (1962-02-01), Kosatka
patent: 3275333 (1966-09-01), Scott et al.
patent: 3561770 (1971-02-01), Corsi et al.
patent: 3682488 (1972-08-01), Matsushima
patent: 3822890 (1974-07-01), Bourgeois
patent: 4118856 (1978-10-01), Bainard et al.
patent: 4285526 (1981-08-01), Klinteberg et al.
patent: 4428586 (1984-01-01), Romero
patent: 4432557 (1984-02-01), Drucktenhengst
patent: 4632404 (1986-12-01), Feldle et al.
patent: 4721312 (1988-01-01), Hornberger

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