US3309965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined fluid motor and speed reducer for driving dental tools
Assignee: Sybron Transition Corp
•
Filing: 1964-02-27
•
Granted: 1967-03-21
•
Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Egon R Weickgenannt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/08; A61C1/18; A61C1/185; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A FLUID MOTOR COMPRISING IN COMBINATION: (A) A ROTOR HAVING BLADES; (B) A SHAFT FIXED WITH RESPECT TO SAID ROTOR; (C) A BEARING HAVING INNER AND OUTER RACES, ANTIFRACTION MEMBERS, AND AN EXTENDED BEARING RETAINER BETWEEN SAID RACES AND EMBRACING SAID ANTI-FRICTION MEMBERS; (D) MEANS FOR DRIVING THE INNER RACE OF THE BEARING FROM SAID SHAFT; (E) MEANS FOR APPLYING PRESSURE ON SAID ANTI-FRICTION MEMBERS TO REDUCE THE SPEED OF ROTATION OF SAID RETAINER BELOW THAT OF THE SHAFT; AND (F) MEANS FOR DRIVING A CUTTING INSTRUMENT FROM SAID RETAINER.
Claim 2
Dependent Claim
90 words
A FLUID MOTOR COMPRISING IN COMBINATION: (A) A ROTOR HAVING BLADES; (B) A SHAFT FIXED WITH RESPECT TO SAID ROTOR; (C) A BEARING HAVING INNER AND OUTER RACES, ANTIFRACTION MEMBERS, AND AN EXTENDED BEARING RETAINER BETWEEN SAID RACES AND EMBRACING SAID ANTI-FRICTION MEMBERS; (D) MEANS FOR DRIVING THE INNER RACE OF THE BEARING FROM SAID SHAFT; (E) MEANS FOR APPLYING PRESSURE ON SAID ANTI-FRICTION MEMBERS TO REDUCE THE SPEED OF ROTATION OF SAID RETAINER BELOW THAT OF THE SHAFT; AND (F) MEANS FOR DRIVING A CUTTING INSTRUMENT FROM SAID RETAINER.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |