Patent US4256336A successfully refreshed from Google Patents.
US4256336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook for lifting rollers, in particular, a reeling drum hook
Assignee: Individual
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Filing: 1979-10-11
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Granted: 1981-03-17
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Expires: 1999-10-11
Abstract
Abstract The invention relates to an improvement in a hook for lifting rollers, in particular a reeling drum hook. The object of the invention is to prevent the shaft of a roller from lodging on the tip of the hook. This is achieved by pivotally mounting a body on the tip of the hook, which body is formed as an extension of the tip and whereby a part of the body functions as a weight body.
Inventors
- 👤 Kare E. Halvorsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:22
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/30; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/4171; B65H2301/4173; B65H2301/41732
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
175 words
A hook for lifting rollers comprising: a main hooked body having a tip; and an auxiliary body which is pivotally mounted on the tip of said main body, one end of said auxiliary body being formed as an extension of the tip and the other end thereof as a weight, the pivot connection between the main body and the auxiliary body being arranged at the tip of the main body and between the two ends of the auxiliary body, and the outward movement of said one end of said auxiliary body being restricted by abutment of said other end thereof against the main body, and wherein said one end of said auxiliary body is located on the inward side of a vertical line through said pivot connection; and said other end is on the outward side of said line, and said auxiliary body has an uppermost side which extends from said one end to said other end and generally slants downward and outward with respect to said tip when said auxiliary body is at rest.
Claim 2
Dependent Claim
175 words
A hook for lifting rollers comprising: a main hooked body having a tip; and an auxiliary body which is pivotally mounted on the tip of said main body, one end of said auxiliary body being formed as an extension of the tip and the other end thereof as a weight, the pivot connection between the main body and the auxiliary body being arranged at the tip of the main body and between the two ends of the auxiliary body, and the outward movement of said one end of said auxiliary body being restricted by abutment of said other end thereof against the main body, and wherein said one end of said auxiliary body is located on the inward side of a vertical line through said pivot connection; and said other end is on the outward side of said line, and said auxiliary body has an uppermost side which extends from said one end to said other end and generally slants downward and outward with respect to said tip when said auxiliary body is at rest.
Claim 3
Dependent Claim
39 words
A hook according to claim 1, wherein said tip has a groove in its middle region for receiving said auxiliary body, the lower edge of said groove forming a stop surface to prevent further rotation of said auxiliary body.
Claim 4
Dependent Claim
45 words
A hook according to claim 1, wherein said auxiliary body is disposed on the side of the hook and has a projection extending toward the side of the hook for restricting the rotation of said auxiliary body upon contact of the projection against the hook.
Claim 5
Dependent Claim
27 words
A hook according to claim 1, wherein said auxiliary body has a central groove in said one end to permit it to be placed around said tip.
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |