Patent US3249180A successfully refreshed from Google Patents.
US3249180A
Expired / Lapsed
US
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Longitudinal locking device for cylindrical rods or shafts
Assignee: Individual
•
Filing: 1963-11-08
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Granted: 1966-05-03
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Torossian Edouard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/10; F16B7/14; F16B7/1481; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/248; F16B21/00; F16B21/10; F16B21/20; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/041; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A DEVICE FOR EFFECTIVE THE LONGITUDINAL LOCKING OF CYLINDRICAL RODS AND SHAFTS BY MEANS OF COIL SPRINGS COAXIALLY SURROUNDING THE RODS AND SHAFTS, CHARACTERIZED BY A SEAT FOR THE SPRING CONSTITUTED BY A SEGMENTAL ABUTMENT HAVING A SURFACE SUBSTANTIALLY PERPENDICULAR TO A SHAFT BEING LOCKED AND HAVING AN AREA SUCH THAT CURVATURE OF THE SPRING ABOUT SAID ABUTMENT WILL NOT CAUSE PERMANENT DEFORMATION OF THE SPRING, SAID SURFACE ACTING ON ONLY A PART OF THE ANNULUS FORMED BY THE FIRST TURN OF THE SPRING AND LEAVING FREE THE GREATER PART OF THE SAID TURN, IN ORDER TO FORCE THESE TURNS TO ROCK, UNDER THE ACTION OF ANY TRACTIVE FORCE TO WHICH THE ROD IS SUBJECTED, ABOUT THE ABUTMENT AND THUS TO PERMIT INCREASING THEIR ADHESION IN DEPENDENCE ON THE TRACTIVE FORCE, AND ALSO CHARACTERISED BY ELEMENTS PERMITTING THE ROD TO BE GIVEN A ROTATIONAL MOVEMENT IN THE DIRECTION OF THE PITCH OF THE SPRING, IN ORDER TO WIND THE SPRING ON TO THE ROD WITH A GIVEN ADHESION OF THE TURNS IN ORDER IN THIS WAY TO EFFECT LONGITUDINAL LOCKING.
Claim 2
Independent Claim
180 words
A DEVICE FOR EFFECTIVE THE LONGITUDINAL LOCKING OF CYLINDRICAL RODS AND SHAFTS BY MEANS OF COIL SPRINGS COAXIALLY SURROUNDING THE RODS AND SHAFTS, CHARACTERIZED BY A SEAT FOR THE SPRING CONSTITUTED BY A SEGMENTAL ABUTMENT HAVING A SURFACE SUBSTANTIALLY PERPENDICULAR TO A SHAFT BEING LOCKED AND HAVING AN AREA SUCH THAT CURVATURE OF THE SPRING ABOUT SAID ABUTMENT WILL NOT CAUSE PERMANENT DEFORMATION OF THE SPRING, SAID SURFACE ACTING ON ONLY A PART OF THE ANNULUS FORMED BY THE FIRST TURN OF THE SPRING AND LEAVING FREE THE GREATER PART OF THE SAID TURN, IN ORDER TO FORCE THESE TURNS TO ROCK, UNDER THE ACTION OF ANY TRACTIVE FORCE TO WHICH THE ROD IS SUBJECTED, ABOUT THE ABUTMENT AND THUS TO PERMIT INCREASING THEIR ADHESION IN DEPENDENCE ON THE TRACTIVE FORCE, AND ALSO CHARACTERISED BY ELEMENTS PERMITTING THE ROD TO BE GIVEN A ROTATIONAL MOVEMENT IN THE DIRECTION OF THE PITCH OF THE SPRING, IN ORDER TO WIND THE SPRING ON TO THE ROD WITH A GIVEN ADHESION OF THE TURNS IN ORDER IN THIS WAY TO EFFECT LONGITUDINAL LOCKING.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |