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US4283811A Expired / Lapsed US ⏱️ 0.0 years remaining

Improved knuckle hinge

Assignee: Individual
•
Filing: 1978-08-03
•
Granted: 1981-08-18
•
Expires: 1998-08-03
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Abstract

Abstract The present invention provides a hinge comprising leaves and a knuckle, the knuckle comprising tabs extending from the leaves and supporting hinging pivot means and at least one of the tabs of one leaf supporting at least one of the tabs of another leaf and further including strengthening webs extending from the respective tabs to the respective leaf and located on one side only, with respect to the hinging pivot axis, of each respective tab. The present invention also provides a method of manufacturing a hinge comprising stamping a strip of metal to form a hinge leaf having projections extending from a side thereof, bending one part of each of said projections to form a tab lying generally perpendicular to the plane of the leaf and such that the remaining part of each of said projections lies on one side only of the respective tab and extends as a strengthening web between the tab and the leaf.

Inventors

  • 👤 Peter J. George

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 21:51
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/02; B; B21; B21D; B21D53/00; B21D53/38; B21D53/40; E05D11/00; E05D11/0054; E05D5/00; E05D5/10; E05D5/14; E05D7/00; E05D7/009; E05D7/10; E05D7/1005; E05D7/1022; E05Y; E05Y2800/00; E05Y2800/67; E05Y2800/676; E05Y2800/682; E05Y2900/00; E05Y2900/20; Y; Y10; Y10T; Y10T29/00; Y10T29/24

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 113 words
A hinge comprising: a pair of leaves formed of sheet-like material, each of said leaves having at least a pair of triangularly shaped webs extending from a longitudinal side thereof and having terminal ends formed to provide sheet-like tabs oriented generally normal to the leaf, said pair of leaves being juxtapositioned so as to be rotatable about a common axis and so that said tabs are contiguous, with at least one of the tabs of one leaf supporting at least one of the tabs of the other leaf; and pivot means located at said common axis for coupling said contiguous tabs together for permitting said leaves to rotate with respect to each other.
Claim 2
Dependent Claim 113 words
A hinge comprising: a pair of leaves formed of sheet-like material, each of said leaves having at least a pair of triangularly shaped webs extending from a longitudinal side thereof and having terminal ends formed to provide sheet-like tabs oriented generally normal to the leaf, said pair of leaves being juxtapositioned so as to be rotatable about a common axis and so that said tabs are contiguous, with at least one of the tabs of one leaf supporting at least one of the tabs of the other leaf; and pivot means located at said common axis for coupling said contiguous tabs together for permitting said leaves to rotate with respect to each other.
Claim 3
Dependent Claim 21 words
A hinge as claimed in claim 1 wherein each of said webs lies generally in the same plane as the leaf.
Claim 4
Dependent Claim 24 words
A hinge according to claim 1 wherein said pivot means coupling said tabs is adjacent the junction of the webs and their associated tabs.
Claim 5
Dependent Claim 17 words
A hinge as claimed in claim 3 wherein said tabs have holes for receiving a hinge pin.
Claim 6
Dependent Claim 23 words
A hinge as claimed in claim 4 wherein said hole in said tab and the respective web are substantially tangential to each other.

References Cited (Backward Citations)

US1035661A Cited
US1094010A Cited
US1649586A Cited
US2164047A Cited
US2179931A Cited
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US3006039A Cited
US3212125A Cited
FR1580417A Cited
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US3911528A Cited
US3949445A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-08-17 1985-02-16 1985-08-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-08-17 1989-02-16 1989-08-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-08-17 1993-02-16 1993-08-18 $7700.00 Window Closed / Lapsed

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