Patent US3222742A successfully refreshed from Google Patents.
US3222742A
Expired / Lapsed
US
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Self-tightening clamps
Assignee: Tractel SAS
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Filing: 1963-09-23
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Granted: 1965-12-14
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Persiaux Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:10
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/02; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936; Y10T24/394; Y10T24/3949
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
SELF-TIGNTENING CLAMP FOR A HAULING OR HOISTING APPLIANCE HAVING A CABLE OR THE LIKE COMPRISING A PAIR OF COOPERATING JAWS, SAID JAWS HAVING INNER COOPERATING SURFACES FOR ENGAGING AND GRIPPING A CABLE, EACH JAW HAVING AN OUTER SURFACE PROVIDED WITH CYLINDRICAL BEARINGS MACHINED IN THE ACTUAL THICKNESS OF THE JAW AND EXTENDING THE WIDTH THEREOF, AND MEANS CONTROLLING THE TIGHTENING ACTION OF THE JAWS ON THE CABLE, SAID MEANS COMPRISING PIVOTING SIDE PLATES PIVOTALLY ARRANGED ON OPPOSITE SIDES OF THE JAWS AND MEANS CARRIED BY THE SIDE PLATES AND DISPOSED IN CONSTANT ROLLING CONTACT WITH SUBSTANTIALLY THE ENTIRE WIDTH OF THE CYLINDRICAL BEARINGS OF ONE JAW AND MEANS CARRIED BY THE SIDE PLATES AND DISPOSED IN CONSTANT ROLLING CONTACT WITH SUBSTANTIALLY THE ENTIRE WIDTH OF THE CYLINDRICAL BEARINGS OF THE OTHER JAW.
Claim 2
Dependent Claim
132 words
SELF-TIGNTENING CLAMP FOR A HAULING OR HOISTING APPLIANCE HAVING A CABLE OR THE LIKE COMPRISING A PAIR OF COOPERATING JAWS, SAID JAWS HAVING INNER COOPERATING SURFACES FOR ENGAGING AND GRIPPING A CABLE, EACH JAW HAVING AN OUTER SURFACE PROVIDED WITH CYLINDRICAL BEARINGS MACHINED IN THE ACTUAL THICKNESS OF THE JAW AND EXTENDING THE WIDTH THEREOF, AND MEANS CONTROLLING THE TIGHTENING ACTION OF THE JAWS ON THE CABLE, SAID MEANS COMPRISING PIVOTING SIDE PLATES PIVOTALLY ARRANGED ON OPPOSITE SIDES OF THE JAWS AND MEANS CARRIED BY THE SIDE PLATES AND DISPOSED IN CONSTANT ROLLING CONTACT WITH SUBSTANTIALLY THE ENTIRE WIDTH OF THE CYLINDRICAL BEARINGS OF ONE JAW AND MEANS CARRIED BY THE SIDE PLATES AND DISPOSED IN CONSTANT ROLLING CONTACT WITH SUBSTANTIALLY THE ENTIRE WIDTH OF THE CYLINDRICAL BEARINGS OF THE OTHER JAW.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |