Seal ring having lubricant pockets and a process of making a sea

Details Seal ring having lubricant pockets and a process of making a sea Seal ring having lubricant pockets and a process of making a sea

1986-06-30

1988-06-14

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

29428, 29446, 156293, 277 1, 277153, 277213, F16J 1532, B32B 3104

Patent

active

047507470

ABSTRACT:
A process of making a seal ring uses an elastic ring having a sealing lip projecting laterally or inwardly about one, innermost edge. The elastic ring is turned inside out so that the one, sealing-lip edge is then outermost before or during fixedly sealing the sealing lip to a supporting ring, the sealing lip having a thin thickness profile effective in this for upsetting the sealing lip. Turning the lipped, elastic ring inside out also crimps a sealing surface of the lipped, elastic ring, which ring bends to engage a shaft axially with the sealing surface, such that lubricant pockets opening from the sealing surface only to the other, free edge of the lipped, elastic ring are uniformly distributed therein circumferentially about the sealing surface. The baffle or side and bottom surface portions of each lubricant pocket merge evenly with each other to form a single ground surface. The baffle surface portions of each lubricant pocket form an obtuse included angle with the adjacent portions of the sealing surface and the bottom surface portion of each lubricant pocket forms an obtuse included angle with the adjacent sealing surface, opening toward the other, free edge of the lipped, elastic ring.

REFERENCES:
patent: 2162104 (1939-06-01), Mosher
patent: 3272519 (1966-09-01), Voitik
patent: 3464709 (1969-09-01), Furgason et al.
patent: 3515395 (1970-06-01), Weinand
patent: 4155560 (1979-05-01), Repella
patent: 4167981 (1979-09-01), Bertin
patent: 4350347 (1982-09-01), Heinrich
patent: 4427205 (1984-01-01), Holzer et al.

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