Double cardan universal joint ball and socket seal
AssigneeWeasler Engineering, Inc.
InventorRoger D. Mayhew
Life of this patent
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Abstract
An elastomeric seal for a ball and socket centering apparatus of a double cardan constant velocity universal joint has slits radiating from a hole in which the ball is received which create fingers that flex to wipe against the ball and retain grease in the seal as the joint is rotated through an angle.
Claims5
In an elastomeric seal for a ball and socket centering apparatus of a double cardan constant velocity universal joint of the type which has one end secured to said socket and an opposite end adjacent said ball, said opposite end having a wall with a hole formed therein for receiving said ball, the improvement wherein radially extending slits are provided in said wall of said elastomeric seal around said hole extending from said hole for a distance into said seal, said slits defining between them fingers which wipe against said ball.
Dependencies are inferred from the claim text.