US4223932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanic's lifting device
Assignee: Individual
•
Filing: 1978-12-28
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Granted: 1980-09-23
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Expires: 1998-12-28
Abstract
Abstract A mechanic's lifting device comprising a circular ring-shaped supporting member having an annular load-bearing wall dimensioned for engagement by a lifting hook or the like. A plurality of threaded studs are mounted on and extend radially outward from the wall for threading into an object to be lifted. The studs are positioned in circumferentially spaced relation on the wall. There are a plurality of hook engageable areas disposed in diametrically opposed relation to the studs with one such area diametrically opposed to each of the studs.
Inventors
- 👤 Almiro Gonsalves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:05
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/62; B66C1/66; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A mechanic's lifting device comprising: a toroidal-shaped supporting member having an annular load-bearing wall dimensioned for engagement by a lifting hook or the like; an odd-numbered plurality of threaded studs of different sizes mounted on and extending radially outwardly from said wall for threading into an object to be lifted, said studs being positioned in equal circumferentially spaced relation on said wall and with a plurality of hookengageable areas disposed in diametrically opposed relation to said studs with one such area diametrically opposed to each of said studs.
Claim 2
Dependent Claim
88 words
A mechanic's lifting device comprising: a toroidal-shaped supporting member having an annular load-bearing wall dimensioned for engagement by a lifting hook or the like; an odd-numbered plurality of threaded studs of different sizes mounted on and extending radially outwardly from said wall for threading into an object to be lifted, said studs being positioned in equal circumferentially spaced relation on said wall and with a plurality of hookengageable areas disposed in diametrically opposed relation to said studs with one such area diametrically opposed to each of said studs.
References Cited (Backward Citations)
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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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |