Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1985-08-26
1987-09-29
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 38, 277 47, 277153, F16J 1532, F16J 1534, F16J 1554
Patent
active
046964797
ABSTRACT:
The unitized shaft seal assembly comprises an outer rigid annular member including an outer annular ring portion with a flange extending radially inwardly from one edge thereof and an inner annular ring portion with a flange extending radially inwardly from one edge thereof, an inner rigid annular ring member having a radially outwardly extending flange extending from one edge thereof and a radially outwardly extending flange extending from the other edge thereof, a flexible annular sealing member disposed between the rigid annular ring members, a coiled spring extending completely around a portion of said sealing member for urging an inner surface of the sealing member against a radially outwardly facing surface of the inner annular member, and an intermediate rigid annular member positioned on one side of the assembly and having a radially inwardly disposed portion which is positioned adjacent and axially inwardly of a flange of the inner annular member and an outer radially disposed portion which is positioned adjacent and axially inwardly of a flange of the outer member. The inner annular member has a layer of elastomeric material on the inwardly facing surface thereof which extends around and over one flange of the inner member to form a seal between a flange of the inner member and a flange of the outer member.
REFERENCES:
patent: 1918121 (1933-07-01), Mulhern
patent: 2076716 (1937-04-01), Fretter
patent: 2405120 (1946-08-01), Evans
patent: 3021161 (1962-02-01), Rhoads et al.
patent: 3762726 (1973-10-01), Jornhagen
patent: 4226426 (1980-10-01), Messenger
Shoap Allan N.
Triseal Corporation
Vigil Thomas R.
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