US4733874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut and seal assembly
Assignee: Individual
•
Filing: 1985-06-12
•
Granted: 1988-03-29
•
Expires: 2005-06-12
Abstract
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.
Inventors
- 👤 Bruce Fournier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/029; F16H57/04; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2164; Y10T74/2165
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
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.
Claim 2
Dependent Claim
119 words
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.
Claim 3
Dependent Claim
31 words
The nut and seal assembly for preventing liquid leakage as described in claim 1, wherein said retainer nut includes an interiorly threaded portion for attachment of said nut to said housing.
Claim 4
Dependent Claim
60 words
The nut and seal assembly for preventing liquid leakage as described in claim 2, wherein said annular member has an L-shaped cross-section with the first leg of the L extending axially in frictional engagement into the cavity and the second leg extends radially inwardly at the inception of the front portion of the nut to describe a circular opening therein.
Claim 5
Dependent Claim
32 words
The nut and seal assembly for preventing liquid leakage as described in claim 3, wherein said rigid annular member is composed of metal and said gasket member is composed of polymeric material.
Claim 6
Dependent Claim
30 words
The nut and seal assembly for preventing liquid leakage as described in claim 4, wherein said lip means comprise two concentric spaced lips for flexible sealing contact with said shaft.
Claim 7
Dependent Claim
43 words
The nut and seal assembly for preventing liquid leakage as described in claim 5, wherein said spring means comprises a metallic or plastic coil spring surrounding said skirt member to retain at least one lip for continuous frictional sealing engagement with said shaft.
Claim 8
Dependent Claim
35 words
The nut and seal assembly for preventing liquid leakage as described in claim 6, wherein said rear face includes a circular groove with a polymeric O-Ring secured therein for abutting sealing engagement with said housing.
References Cited (Backward Citations)
US15061A
Cited
US582750A
Cited
US601710A
Cited
USRE15061E
Cited
GB189626961A
Cited
GB550312A
Cited
GB604704A
Cited
GB648677A
Cited
US3871665A
Cited
US4519636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |