Patent US3650868A successfully refreshed from Google Patents.
Patent US3132911A successfully refreshed from Google Patents.
US3132911A
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Hinge structure
Assignee: Unisys Corp
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Filing: 1961-04-20
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Granted: 1964-05-12
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Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Glen R Heidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:06
CPC Classifications
H; H01; H01R; H01R35/00; H01R35/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A HINGE STRUCTURE COMPRISING: A PAIR OF MEMBERS HAVING ABUTTING EDGE PORTIONS OF CYCLOIDAL SHAPE; MEANS SECURING SAID EDGE PORTIONS TOGETHER IN A MANNER PERMITTING SAID MEMBERS TO BE FOLDED RELATIVE TO EACH OTHER FROM ONE POSITION TO ANOTHER; SAID SECURING MEANS COMPRISING AN ELONGATED FLEXIBLE HINGE ELEMENT HAVING ONE END PORTION SECURED TO ONE OF SAID MEMBERS, AND ITS OPPOSITE END PORTION SECURED TO THE OTHER OF SAID MEMBERS WITH A FREE INTERMEDIATE PORTION EXTENDING BETWEEN THE SECURED END PORTIONS; AND MEANS ON THE ADJACENT EDGE PORTIONS OF SAID MEMBERS AND ADJACENT SAID HINGE ELEMENT FORMING ARCUATE SURFACES EXTENDING AWAY FROM SAID HINGE ELEMENT, THE FREE INTERMEDIATE PORTION OF SAID HINGE ELEMENT WRAPPING AROUND SAID ARCUATE SURFACES AND COOPERATING WITH SAID CYCLOIDALLY SHAPED EDGE PORTIONS DURING FOLDING OF SAID MEMBERS TO MAINTAIN THE FREE DISTANCE BETWEEN SAID SECURED END PORTIONS OF SAID HINGE ELEMENT SUBSTANTIALLY EQUAL TO THE FREE PORTION OF SAID HINGE ELEMENT.
Claim 2
Dependent Claim
155 words
A HINGE STRUCTURE COMPRISING: A PAIR OF MEMBERS HAVING ABUTTING EDGE PORTIONS OF CYCLOIDAL SHAPE; MEANS SECURING SAID EDGE PORTIONS TOGETHER IN A MANNER PERMITTING SAID MEMBERS TO BE FOLDED RELATIVE TO EACH OTHER FROM ONE POSITION TO ANOTHER; SAID SECURING MEANS COMPRISING AN ELONGATED FLEXIBLE HINGE ELEMENT HAVING ONE END PORTION SECURED TO ONE OF SAID MEMBERS, AND ITS OPPOSITE END PORTION SECURED TO THE OTHER OF SAID MEMBERS WITH A FREE INTERMEDIATE PORTION EXTENDING BETWEEN THE SECURED END PORTIONS; AND MEANS ON THE ADJACENT EDGE PORTIONS OF SAID MEMBERS AND ADJACENT SAID HINGE ELEMENT FORMING ARCUATE SURFACES EXTENDING AWAY FROM SAID HINGE ELEMENT, THE FREE INTERMEDIATE PORTION OF SAID HINGE ELEMENT WRAPPING AROUND SAID ARCUATE SURFACES AND COOPERATING WITH SAID CYCLOIDALLY SHAPED EDGE PORTIONS DURING FOLDING OF SAID MEMBERS TO MAINTAIN THE FREE DISTANCE BETWEEN SAID SECURED END PORTIONS OF SAID HINGE ELEMENT SUBSTANTIALLY EQUAL TO THE FREE PORTION OF SAID HINGE ELEMENT.
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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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |