US3583753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel-lifting device
Assignee: Individual
•
Filing: 1968-10-17
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Granted: 1971-06-08
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Expires: 1988-10-17
Abstract
Abstract A reel lifter having a swivel connection for allowing the reel to be rotated and an automatically actuated toggle that is moved from an inoperative position into an operative position wherein it extends transversely to be engaged against the inside surface of the reel flange. The toggle is pivotally mounted at the lower end of a tubular shaft which may be supported externally or may be supported by the mechanism which actuates the toggle. In one form no swivel is provided. In another form diametrically opposed slots are provided in a tubular member and the toggle-actuating mechanism is joined to the tubular shaft by a bolt extending through the slots. In still another form the slot is provided in the toggle-actuating mechanism.
Inventors
- 👤 Daniel B Mccrory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:43
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/62; B66C1/66
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A lifting device comprising: a. an elongated tubular support member, b. toggle means pivotally secured to the lower end of said support means and being movable into an inoperative position wherein it is disposed longitudinally of said support means and an operative position wherein it is disposed transversely of said support means; c. lifting means located at and connected to the upper end of said support member and being longitudinally movable relative to the support member through a predetermined distance, said lifting means having a lower nonlifting position and an upper lifting position, said lifting means in its upper position coacting with said support means and said toggle means to perform lifting operations, said lifting means having an upper portion for fastening to a lifting cable; and said lifting means and toggle means so that when said lifting means is moved to its upper lifting position said toggle is pivoted to its operative position.
Claim 2
Dependent Claim
154 words
A lifting device comprising: a. an elongated tubular support member, b. toggle means pivotally secured to the lower end of said support means and being movable into an inoperative position wherein it is disposed longitudinally of said support means and an operative position wherein it is disposed transversely of said support means; c. lifting means located at and connected to the upper end of said support member and being longitudinally movable relative to the support member through a predetermined distance, said lifting means having a lower nonlifting position and an upper lifting position, said lifting means in its upper position coacting with said support means and said toggle means to perform lifting operations, said lifting means having an upper portion for fastening to a lifting cable; and said lifting means and toggle means so that when said lifting means is moved to its upper lifting position said toggle is pivoted to its operative position.
Claim 3
Dependent Claim
42 words
The lifting device according to claim 1 and wherein said lifting means and said support member are interconnected by slot means and a transversely disposed bolt which permit said support member and lifting means to move longitudinally with respect to each other.
Claim 4
Dependent Claim
30 words
The lifting device according to claim 2 and wherein said lifting means has a lower portion which swivels relative to said upper portion so that said lifting device also swivels.
Claim 5
Dependent Claim
31 words
The lifting device according to claim 2 and wherein said bolt is secured to said upper member and said slot means is in said lifting means to establish said relative movement.
Claim 6
Dependent Claim
31 words
The lifting device according to claim 2 and wherein said slot means are in said support member and said bolt is secured to said lifting means to establish said relative movement.
Claim 7
Dependent Claim
24 words
The lifting device according to claim 2 and wherein said support member has handle means secured thereto for holding and positioning said lifting device.
Claim 8
Dependent Claim
19 words
The lifting device according to claim 2 and wherein said lifting means is located within the tubular support member.
References Cited (Backward Citations)
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US886194A
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US880404A
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US2262811A
Cited
US2789859A
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US3132890A
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US3307871A
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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) | 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 |