US3690712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grab hook assembly
Assignee: Individual
•
Filing: 1971-03-15
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Granted: 1972-09-12
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Expires: 1991-03-15
Abstract
Abstract A grab hook assembly for use in the straightening of motor vehicle frames and the like. The hook is S-shaped and has a linkreceiving grab hook at one end and a reverse open throat hook formed at the other end which is designed to fit in the welding jig holes provided in the structural members of a motor vehicle frame by the manufacturer. Included in the assembly is a removable collar member adapted to fit over the leading end of the reverse open throat hook to enlarge the bearing surface thereof when the hook is used in large diameter jig holes.
Inventors
- 👤 Wilbur N Bahrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:32
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/14; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; Y; Y10; Y10S; Y10S72/00; Y10S72/705; Y10T; Y10T24/00; Y10T24/34; Y10T24/3484; Y10T24/45; Y10T24/45225; Y10T24/45969
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
72 words
A hook assembly for attaching a chain to the frame of a motor vehicle or the like comprising an S-shaped hook having an elongated shank, a link-receiving grab hook formed at one end of said shank and a reverse open throat hook formed at the other end of said shank, a removable collar member adapted to fit over the leading end of the reverse open throat hook to enlarge the diameter thereof.
Claim 2
Dependent Claim
72 words
A hook assembly for attaching a chain to the frame of a motor vehicle or the like comprising an S-shaped hook having an elongated shank, a link-receiving grab hook formed at one end of said shank and a reverse open throat hook formed at the other end of said shank, a removable collar member adapted to fit over the leading end of the reverse open throat hook to enlarge the diameter thereof.
Claim 3
Dependent Claim
20 words
The hook assembly of claim 1, in which one end of the collar member is provided with an annular flange.
Claim 4
Dependent Claim
42 words
The hook assembly of claim 1, in which one end of the collar member is provided with a slot having a width at least as wide as the S-shaped hook at the apex of the throat of the reverse open throat hook.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |