Exclusion seal assembly

Details Exclusion seal assembly Exclusion seal assembly

1987-04-27

1989-07-18

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 25, 277 58, 277 65, 277 95, 277133, 277135, 277153, 384478, 384482, 384486, F16C 3376, F16J 1532, F16J 1534, F16J 1554

Patent

active

048487767

ABSTRACT:
A seal assembly (22 or 50) including a primary seal (26), an exclusion seal (28 or 52), and a contaminant absorbing material (30 or 54). The exclusion seal and absorbing material extend the life of the primary seal. The exclusion seal is of the face seal type and includes spacer means (40, 42, 38 or 62, 64, 56) for proper positioning of a sealing lip (34d or 60a) of an elastomeric seal member (34 or 60) relative to an axial facing sealing surface (36a or 58c). The absorbing material (30 or 54) is disposed between the exclusion seal and the primary seal for absorbing contaminants which get by the exclusion seal. The axially facing sealing surface (36a or 58c) may be defined by a frustonconical surface such as provided by a spring washer (44). The seal assembly (50) includes circumferentially, radially spaced vanes (62d) for centrifuging contaminants radially outward and into the absorbing material.

REFERENCES:
patent: 1849404 (1932-03-01), Leonard, Jr.
patent: 2195496 (1940-04-01), Reed
patent: 2240252 (1941-04-01), Bernstein
patent: 2418707 (1947-04-01), Groot
patent: 2478649 (1949-08-01), Wightman
patent: 2936715 (1960-05-01), Southam et al.
patent: 3016251 (1962-01-01), Gilbert
patent: 3021161 (1962-02-01), Rhodes et al.
patent: 3028181 (1962-04-01), Thompson et al.
patent: 3038733 (1962-06-01), Hudson et al.
patent: 3087733 (1963-04-01), Wheelock
patent: 3120959 (1964-02-01), Jensen et al.
patent: 3266811 (1966-08-01), Knauth
patent: 3504917 (1970-04-01), Malmstrom
patent: 3536332 (1970-10-01), Pitner
patent: 3640540 (1972-02-01), Larsson
patent: 3681142 (1972-08-01), Schmitt
patent: 3703296 (1972-11-01), Malmstrom
patent: 4000930 (1977-01-01), Poncet
patent: 4049281 (1977-09-01), Bainard
patent: 4428586 (1984-01-01), Romero
patent: 4491332 (1985-01-01), Zambusch
patent: 4550920 (1985-11-01), Matsushima

Affiliated with

Also associated with

Rating

Exclusion seal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exclusion seal assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exclusion seal assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-166637