Patent US3821975A successfully refreshed from Google Patents.
US3821975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive wheel lock means
Assignee: Individual
•
Filing: 1972-11-16
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Granted: 1974-07-02
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Expires: 1992-11-16
Abstract
Abstract An automotive wheel nut has a frusto-conical periphery and in its outer end face has a pair of wrench receiving openings of different diameters and spaced angularly at oblique angles. A wrench member in the shape of a nut has a clearance hole to fit over the wheel stud which projects from the nut and has pins in its inner face so spaced and sized as to fit the openings in the nut. A conventional wrench is employed for manipulating the wrench member to tighten or loosen the wheel nut.
Inventors
- 👤 L Haker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:01
CPC Classifications
B; B60; B60B; B60B3/00; B60B3/14; B60B3/16; B25; B25B; B25B13/00; B25B13/48; B25B13/485; F; F16; F16B; F16B23/00; F16B23/0069; Y; Y10; Y10S; Y10S411/00; Y10S411/919; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5889; Y10T70/5982; Y10T70/5987; Y10T70/5991
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
In combination, a nut member for engagement with a vehicle wheel stud and a cooperating wrench member, said members having relatively flat faces adapted to be juxtaposed, said nut member having a pair of eccentrically disposed openings in its face and said wrench member having a pair of pins at its face for interfitting engagement in said openings, said pairs of openings and interfitting pins being angularly obliquely displaced whereby said nut member can be engaged only by a complementary wrench member in the hands of an authorized person, said wrench member being externally formed to be engaged by conventional wrench means, and said wrench member having a central clearance opening adapted to fit over the portion of the wheel stud which projects from said nut.
Claim 2
Dependent Claim
126 words
In combination, a nut member for engagement with a vehicle wheel stud and a cooperating wrench member, said members having relatively flat faces adapted to be juxtaposed, said nut member having a pair of eccentrically disposed openings in its face and said wrench member having a pair of pins at its face for interfitting engagement in said openings, said pairs of openings and interfitting pins being angularly obliquely displaced whereby said nut member can be engaged only by a complementary wrench member in the hands of an authorized person, said wrench member being externally formed to be engaged by conventional wrench means, and said wrench member having a central clearance opening adapted to fit over the portion of the wheel stud which projects from said nut.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein said openings are of different diameters and said pins are likewise of different diameters to fit within said openings.
References Cited (Backward Citations)
US218275A
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US673056A
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US1298398A
Cited
US1447564A
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US2286950A
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |