Patent US3143366A successfully refreshed from Google Patents.
US3143366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick keyless couplings
Assignee: Individual
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Filing: 1959-03-27
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Granted: 1964-08-04
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 Harry J Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:37
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/092; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A QUICKLY MOUNTABLE AND DEMOUNTABLE KEYLESS COUPLING ASSEMBLY CAPABLE OF SELF-COUPLING AND SELF-UNCOUPLING OPERATION BY AN ORDINARY WRENCH COMPRISING IN COMBINATION: A TAPERED SHAFT PART WITH COAXIAL SCREWTHREADS; A MATING COUPLING PART HAVING AN AXIAL TAPERED BORE COMPLEMENTAL TO SAID SHAFT AND MOUNTED COAXIALLY THEREON, SAID COUPLING PART ALSO HAVING A PLAIN COAXIAL COUNTERBORE WITH A CIRCULAR ABUTMENT AT ITS INNER END, SAID COUNTER BORE HAVING A PLAIN CIRCUMFERENTIAL HALFROUND GROOVE INTERMEDIATE ITS ENDS; A RESILIENT PLAIN THRUST-RING OF ROUND SECTION AND WITH OPEN ENDS SPRINGSEATED IN SAID CIRCUMFERENTIAL GROOVE AND EXTENDING THEREINTO FOR APPROXIMATELY HALF THE RADIAL THICKNESS OF THE SECTION; AND A REVERSIBLE SEMI-AUTOMATIC PUSH-PULL SCREW-JACK MECHANISM FOR FORCIBLY PUSHING SAID PARTS INTO COUPLING ENGAGEMENT AND SUBSEQUENTLY FORCIBLY UNCOUPLING AND PULLING SAID PARTS; SAID MECHANISM INCLUDING SAID PARTS, SAID THRUST-RING, AND A REVERSIBLY ROTATABLE AXIALLY TRAVELING PUSH-PULL JACK-SCREW SHAPED IN PART SO AS TO BE ROTATABLY BY AN ORDINARY WRENCH AND
Claim 2
Dependent Claim
153 words
A QUICKLY MOUNTABLE AND DEMOUNTABLE KEYLESS COUPLING ASSEMBLY CAPABLE OF SELF-COUPLING AND SELF-UNCOUPLING OPERATION BY AN ORDINARY WRENCH COMPRISING IN COMBINATION: A TAPERED SHAFT PART WITH COAXIAL SCREWTHREADS; A MATING COUPLING PART HAVING AN AXIAL TAPERED BORE COMPLEMENTAL TO SAID SHAFT AND MOUNTED COAXIALLY THEREON, SAID COUPLING PART ALSO HAVING A PLAIN COAXIAL COUNTERBORE WITH A CIRCULAR ABUTMENT AT ITS INNER END, SAID COUNTER BORE HAVING A PLAIN CIRCUMFERENTIAL HALFROUND GROOVE INTERMEDIATE ITS ENDS; A RESILIENT PLAIN THRUST-RING OF ROUND SECTION AND WITH OPEN ENDS SPRINGSEATED IN SAID CIRCUMFERENTIAL GROOVE AND EXTENDING THEREINTO FOR APPROXIMATELY HALF THE RADIAL THICKNESS OF THE SECTION; AND A REVERSIBLE SEMI-AUTOMATIC PUSH-PULL SCREW-JACK MECHANISM FOR FORCIBLY PUSHING SAID PARTS INTO COUPLING ENGAGEMENT AND SUBSEQUENTLY FORCIBLY UNCOUPLING AND PULLING SAID PARTS; SAID MECHANISM INCLUDING SAID PARTS, SAID THRUST-RING, AND A REVERSIBLY ROTATABLE AXIALLY TRAVELING PUSH-PULL JACK-SCREW SHAPED IN PART SO AS TO BE ROTATABLY BY AN ORDINARY WRENCH AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |