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US 4,733,874 AGranted
Nut and seal assembly
OwnerBruce Fournierinventor
Life of this patent
Estimating the term…
Abstract
An assembly designed for use on the main drive gear output shaft of a motorcycle, and in similar applications, and including a seal which is press fitted into the cavity of a nut. The nut and seal combination is concentrically positionable over the output shaft, and the seal includes a rubber skirt having a spring positioned around its periphery. The spring maintains the skirt in contact with the output shaft to thus create the seal.
Claims7
A new and improved nut with seal assembly for preventing liquid leakage around an output shaft extending from a housing, said assembly comprising:
- A retainer nut, having a rear face in abutting engagement with said housing, and an extended front portion including a cylindrical cavity therein, concentrically positionable over said output shaft;
- A seal member having a rigid annular member for frictional engagement in said cavity, a flexible annular gasket member secured to one end of said rigid member, said gasket member including a skirt member axially extending toward said rear face and including lip means extending radially inward from said skirt, and spring means surrounding said skirt to bias said lip means into sealing contact with said shaft.
Dependencies are inferred from the claim text.