US3120706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental drill with collet
Assignee: Syntex USA LLC
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Filing: 1961-09-15
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Granted: 1964-02-11
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Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Turchi
- 👤 Nathaniel H Lieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/08; A61C1/14; A61C1/142; A61C1/144; A61C1/145; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17529; Y10T279/17547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A DENTAL HANDPIECE, A TURBINE HOUSING, A TURBINE CARTRIDGE WITHIN SAID HOUSING COMPRISING ROTOR MEANS HAVING A HOLLOW BORE, A COLLET MOUNTED WITHIN SAID BORE AND SECURED TO SAID ROTOR MEANS, SAID COLLET COMPRISING A PLURALITY OF COMPRESSIBLE JAWS AT ONE END THEREOF SEPARATED BY SLITS, SAID COLLET BEING TAPERED ADJACENT SAID JAWS, SAID BORE TAPERING AT THE SAME END AS SAID COLLET, THE TAPER OF SAID BORE COMPLEMENTING SAID TAPER ON THE COLLET, SAID BORE BEING INTERNALLY THREADED AT THE END OPPOSITE THE TAPERED END, SAID COLLET BEING EXTERNALLY THREADED AT THE END OPPOSITE THE TAPERED END, WHEREBY THE COLLET IS THREADEDLY CONNECTED TO THE ROTOR MEANS, AND MEANS FOR MOVING THE COLLET LONGITUDINALLY WITH RESPECT TO SAID BORE, WHEREBY A DENTAL BUR CAN BE SECURED IN SAID BORE BY INSERTING IT IN THE TAPERED END OF SAID BORE AND COMPRESSING SAID JAWS BY MOVING SAID COLLET LONGITUDINALLY WITH RESPECT TO SAID TAPERED END OF SAID BORE.
Claim 2
Dependent Claim
159 words
IN A DENTAL HANDPIECE, A TURBINE HOUSING, A TURBINE CARTRIDGE WITHIN SAID HOUSING COMPRISING ROTOR MEANS HAVING A HOLLOW BORE, A COLLET MOUNTED WITHIN SAID BORE AND SECURED TO SAID ROTOR MEANS, SAID COLLET COMPRISING A PLURALITY OF COMPRESSIBLE JAWS AT ONE END THEREOF SEPARATED BY SLITS, SAID COLLET BEING TAPERED ADJACENT SAID JAWS, SAID BORE TAPERING AT THE SAME END AS SAID COLLET, THE TAPER OF SAID BORE COMPLEMENTING SAID TAPER ON THE COLLET, SAID BORE BEING INTERNALLY THREADED AT THE END OPPOSITE THE TAPERED END, SAID COLLET BEING EXTERNALLY THREADED AT THE END OPPOSITE THE TAPERED END, WHEREBY THE COLLET IS THREADEDLY CONNECTED TO THE ROTOR MEANS, AND MEANS FOR MOVING THE COLLET LONGITUDINALLY WITH RESPECT TO SAID BORE, WHEREBY A DENTAL BUR CAN BE SECURED IN SAID BORE BY INSERTING IT IN THE TAPERED END OF SAID BORE AND COMPRESSING SAID JAWS BY MOVING SAID COLLET LONGITUDINALLY WITH RESPECT TO SAID TAPERED END OF SAID BORE.
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |