US3295207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental head assembly
Assignee: Micro Mega SA
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Filing: 1963-06-26
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Granted: 1967-01-03
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Leonard Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:07
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A DENTAL HEAD ASSEMBLY COMPRISING A TUBULAR BODY HAVING A COUPLING EXTENSION AT ITS REAR END ENGAGEABLE WITH COUPLING MEANS ON A DENTAL ENGINE, A SPINDLE EXTENDING COAXIALLY IN SAID BODY, GRIPPER MEANS AT THE FRONT END OF THE SPINDLE FOR RELEASABLY GRIPPING A DENTAL TOOL, DRIVER MEANS AT THE REAR END OF THE SPINDLE ENGAGEABLE WITH DRIVING MEANS ON THE DENTAL ENGINE WHEN SAID BODY IS COUPLED TO THE LATTER, A FRONT BEARING IN SAID BODY FOR ROTATABLY SUPPORTING THE SPINDLE IN THE BODY ADJACENT THE FRONT END THEREOF, A REAR BEARING FOR ROTATABLY SUPPORTING THE SPINDLE IN THE BODY ADJACENT THE REAR END OF THE SPINDLE, A RETAINER SLEEVE IN WHICH SAID REAR BEARING IS SET AND WHICH IS FITTED IN SAID BODY, INTERNAL SHOULDER MEANS IN THE BODY ENGAGED BY THE FRONT END OF SAID SLEEVE, THE REAR END OF THE SLEEVE BEING ENGAGEABLE WITH THE COUPLING MEANS OF THE DENTAL ENGINE WHEN SAID BODY IS COUPLED TO THE DENTAL ENGINE SO THAT THE COUPLING MEANS RETAINS THE SLEEVE IN POSITION AGAINST SAID SHOULDER MEANS, AND BAYONET JOINT MEANS FOR FIXING SAID SLEEVE IN SAID BODY.
Claim 2
Dependent Claim
189 words
A DENTAL HEAD ASSEMBLY COMPRISING A TUBULAR BODY HAVING A COUPLING EXTENSION AT ITS REAR END ENGAGEABLE WITH COUPLING MEANS ON A DENTAL ENGINE, A SPINDLE EXTENDING COAXIALLY IN SAID BODY, GRIPPER MEANS AT THE FRONT END OF THE SPINDLE FOR RELEASABLY GRIPPING A DENTAL TOOL, DRIVER MEANS AT THE REAR END OF THE SPINDLE ENGAGEABLE WITH DRIVING MEANS ON THE DENTAL ENGINE WHEN SAID BODY IS COUPLED TO THE LATTER, A FRONT BEARING IN SAID BODY FOR ROTATABLY SUPPORTING THE SPINDLE IN THE BODY ADJACENT THE FRONT END THEREOF, A REAR BEARING FOR ROTATABLY SUPPORTING THE SPINDLE IN THE BODY ADJACENT THE REAR END OF THE SPINDLE, A RETAINER SLEEVE IN WHICH SAID REAR BEARING IS SET AND WHICH IS FITTED IN SAID BODY, INTERNAL SHOULDER MEANS IN THE BODY ENGAGED BY THE FRONT END OF SAID SLEEVE, THE REAR END OF THE SLEEVE BEING ENGAGEABLE WITH THE COUPLING MEANS OF THE DENTAL ENGINE WHEN SAID BODY IS COUPLED TO THE DENTAL ENGINE SO THAT THE COUPLING MEANS RETAINS THE SLEEVE IN POSITION AGAINST SAID SHOULDER MEANS, AND BAYONET JOINT MEANS FOR FIXING SAID SLEEVE IN SAID BODY.
References Cited (Backward Citations)
US1675873A
Cited
US2865101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |