Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-09-08
1981-11-17
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277180, F16J 1506
Patent
active
043007732
ABSTRACT:
A sealing device that is self-centering on a cylindrical part about which it is to be disposed is disclosed. The device is comprised of a metal plate and an elastomeric sealing member that is bonded to an aperture provided in the plate. The sealing member has an annular sealing portion with a radially inwardly extending spacer portion of reduced axial thickness and having an inner diameter slightly smaller than the diameter of the cylindrical part about which the sealing device is to be disposed. The elastomeric material is readily deformable and therefore the spacer portion of the sealing member will not mar or scratch the cylindrical part when mounted thereon. The spacer portion is sufficiently thick so that when the cylindrical part is inserted through the spacer portion and deforms the same to a larger inner diameter, the spacer portion will grip the cylindrical part and be sufficiently rigid so as to center the sealing portion radially about the part. In addition, the gripping force of the spacer portion on the cylindrical part is such that the sealing device can be manually rotated to a desired angular position relative to the part and will maintain the position when the part and sealing device are assembled to another part.
REFERENCES:
patent: 2200688 (1940-05-01), Bridgers
patent: 3170701 (1965-02-01), Hoover
patent: 3664672 (1972-05-01), Petersen
patent: 4256313 (1981-03-01), Arnold
Balazs Joseph B.
Parker-Hannifin Corporation
Smith Robert I.
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