Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1989-11-22
1991-02-12
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277123, F16J 1518
Patent
active
049918575
ABSTRACT:
A stuffing box assembly comprising a body which has a bore defined by a generally cylindrical wall and a shaft extending concentrically through the bore. A sleeve is disposed in the bore in surrounding relationship to the shaft, the sleeve having a cylindrical portion and an annular flange, the sleeve defining an annulus between the cylindrical portion and the wall defining a bore. At least one and preferably several annular members formed of an elastomeric material are disposed in the annulus. A stop means limits movement of the annular member away from the flange portion of the sleeve, the annular members being disposed between the flange portion and the stop means. One or more seals or packings for sealing between the shaft and the wall are disposed between the shaft and the wall on the opposite side of the flange portion from the annular member. An adjustable packing gland or the like urges the seal or packings against the flange portion of the sleeve such that the annular member is compressed and exerts a reactive force against the flange portion, the annular members also serving to form a seal between the wall and the cylindrical portion of the sleeve.
REFERENCES:
patent: 2567479 (1951-09-01), Hebard
patent: 3608912 (1971-09-01), Templin et al.
patent: 3982765 (1976-09-01), Fickelscher et al.
patent: 4645212 (1987-02-01), Lundholm
patent: 4702482 (1987-10-01), Oseman
DePumpo Daniel G.
Shoap Allan N.
Utex Industries, Inc.
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