US3583745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting device
Assignee: Individual
•
Filing: 1969-01-02
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Granted: 1971-06-08
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Expires: 1989-01-02
Abstract
Abstract A device for lifting articles, for example, corrugated containers, said device having handle means with crossing members terminating at gripping means. The gripping means comprise a flat rear plate and an opposite, inwardly curved front plate having teeth extending from the forward edge of the curved front plate. When the handles are brought together the curved front plate contacts the article to be lifted and the teeth embed in the article to securely hold the article between the flat rear plate and the curved front plate.
Inventors
- 👤 Brooks S Stuart Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:05
CPC Classifications
B; B65; B65G; B65G7/00; B65G7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A lifting device comprising a pair of crossing handle and gripping members, means pivotally connecting said members, one of said members having a flat plate at its gripping end, the other of said members having at its gripping end a plate that is inwardly and upwardly curved toward the pivot point, the forward edge of said curved plate being elongated and having a plurality of teeth extending upwardly therefrom, said teeth extending upwardly from a plane that intersects said flat plate at 90* when said teeth are adjacent said flat plate, said flat plate being substantially at least as wide as said curved plate, whereby when in use for lifting, said teeth embed in a container being lifted and the weight of the container is carried on said teeth and said elongated forward edge of said curved plate.
Claim 2
Dependent Claim
138 words
A lifting device comprising a pair of crossing handle and gripping members, means pivotally connecting said members, one of said members having a flat plate at its gripping end, the other of said members having at its gripping end a plate that is inwardly and upwardly curved toward the pivot point, the forward edge of said curved plate being elongated and having a plurality of teeth extending upwardly therefrom, said teeth extending upwardly from a plane that intersects said flat plate at 90* when said teeth are adjacent said flat plate, said flat plate being substantially at least as wide as said curved plate, whereby when in use for lifting, said teeth embed in a container being lifted and the weight of the container is carried on said teeth and said elongated forward edge of said curved plate.
Claim 3
Dependent Claim
17 words
The lifting device as defined in claim 1 wherein the flat plate has a smooth forward surface.
Claim 4
Dependent Claim
35 words
The lifting device as defined in claim 1 wherein the handles on the pair of crossing members have flat, mating inner surfaces and the handles meet at a plane that intersects the pivotal connecting means.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |