US3675530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release nut
Assignee: Individual
•
Filing: 1970-03-17
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Granted: 1972-07-11
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Expires: 1990-03-17
Abstract
Abstract A U-shaped nut having a recess provided with a semi-circular threaded inner end and an outer portion defined by parallel wall surfaces spaced apart a distance greater than the diameter of the threaded inner end, to enable the nut to move transversely into engagement with a conventional bolt, at any point along the length of the bolt, for meshing the nut thread with the bolt thread, and a washer slidably fitting on the bolt and having a depression in one side thereof in which the nut is received and confined against lateral movement relative to the bolt. Said depression of the washer and the nut have complementary surfaces disposed in abutting engagement when the nut is fully seated in the depression to prevent lateral sliding or rocking movement of the nut relative to the bolt.
Inventors
- 👤 Michel N Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:02
CPC Classifications
F; F16; F16B; F16B43/00; F16B37/00; F16B37/08; F16B37/0871; F16B37/0892
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
344 words
The combination of a washer and a nut adapted to engage a conventional headed bolt, said washer having a central opening to slidably receive the threaded bolt shank, one face of the washer having an outwardly opening socket including a cylindrical wall of uniform diameter disposed concentrically around said opening and a substantially flat circular bottom; said nut being U-shaped and including a base and corresponding legs projecting from said base and having spaced apart substantially parallel inner faces combining with an inner face of the base to define a recess to receive the threaded bolt shank when the nut is displaced transversely into engagement therewith, said inner face of the base being threaded to provide a semi-circular threaded portion which meshes with a portion of the bolt thread, said nut having a major transverse dimension no greater than the diameter of the cylindrical wall to be received in the socket when the washer is displaced along the bolt toward the nut and the nut thread is meshing with the bolt thread, said base having a convex outer face of uniform diameter a part of which is disposed in engagement with said annular wall of the socket to retain the nut thread in engagement with the bolt thread to enable the nut and washer to be moved axially in either direction along the bolt by rotation of the nut, said nut having a flat side seating against said socket bottom when the nut is in engagement with the socket, the largest diameter of the flat side being substantially equal to the largest diameter of the flat bottom, said socket having an annular inclined surface disposed between said bottom and the cylindrical wall, and said nut having an inclined surface extending between said flat side and said convex outer face and abutting a portion of the inclined surface of the socket when the nut is seated in the socket, said inclined surface of the nut having a convex peripheral portion in axial alignment with and concentric with the convex outer face of the nut base.
Claim 2
Dependent Claim
344 words
The combination of a washer and a nut adapted to engage a conventional headed bolt, said washer having a central opening to slidably receive the threaded bolt shank, one face of the washer having an outwardly opening socket including a cylindrical wall of uniform diameter disposed concentrically around said opening and a substantially flat circular bottom; said nut being U-shaped and including a base and corresponding legs projecting from said base and having spaced apart substantially parallel inner faces combining with an inner face of the base to define a recess to receive the threaded bolt shank when the nut is displaced transversely into engagement therewith, said inner face of the base being threaded to provide a semi-circular threaded portion which meshes with a portion of the bolt thread, said nut having a major transverse dimension no greater than the diameter of the cylindrical wall to be received in the socket when the washer is displaced along the bolt toward the nut and the nut thread is meshing with the bolt thread, said base having a convex outer face of uniform diameter a part of which is disposed in engagement with said annular wall of the socket to retain the nut thread in engagement with the bolt thread to enable the nut and washer to be moved axially in either direction along the bolt by rotation of the nut, said nut having a flat side seating against said socket bottom when the nut is in engagement with the socket, the largest diameter of the flat side being substantially equal to the largest diameter of the flat bottom, said socket having an annular inclined surface disposed between said bottom and the cylindrical wall, and said nut having an inclined surface extending between said flat side and said convex outer face and abutting a portion of the inclined surface of the socket when the nut is seated in the socket, said inclined surface of the nut having a convex peripheral portion in axial alignment with and concentric with the convex outer face of the nut base.
Claim 3
Dependent Claim
48 words
The combination as defined by claim 1, said legs of the nut having terminal portions defining convex surfaces engaging portions of the cylindrical wall of the socket and inclined surfaces engaging portions of said annular inclined surface of the socket when the nut is seated in the socket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |