Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1986-01-27
1988-07-26
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 58, 277 63, 277 71, 277 74, 277 75, 277 95, 277 961, 277153, F16J 1532, F16J 1534, F16J 1554
Patent
active
047595531
ABSTRACT:
A seal element is positioned within an outer casing and has an anchoring portion which is sealingly secured to the periphery of a rotating shaft by a surrounding coil spring. A radial portion on the seal element extends radially outward from the anchoring portion and passes between two spaced washers, providing a dynamic seal therebetween. An arm extends from one face of the seal element radial portion to resiliently bias the radial portion into engagement with the washers. A spiral hydrodynamic groove on the other face of the seal element radial portion automatically pumps fluid back to the fluid side of the seal apparatus as the shaft and seal element rotate together.
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Bainard Dean R.
Goodman James R.
Kanitz Dick L.
Lewis Terry M.
Sekulich Stephen A.
Shoap Allan N.
The Fluorocarbon Company
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