US3296698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot controller and control system for air driven and electric motor driven dental handpieces
Assignee: American Hospital Supply Corp
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Filing: 1963-01-28
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Granted: 1967-01-10
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Staunt Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:05
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007; A61C1/0015; A61C1/0023; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87064; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20189
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FOOT ACTUATED CONTROLLER ASSEMBLY FOR DENTAL HANDPIECES COMPRISING A BASE SECURED TO THE BOTTOM OF A RHEOSTAT DENTAL ENGINE CONTROLLER, SAID RHEOSTAT HAVING A RADIALLY PROJECTING FOOT LEVER, A SECOND LEVER PIVOTALLY MOUNTED ON SAID BASE AND PROJECTING RADIALLY FROM THE ASSEMBLY BELOW THE FOOT LEVER, UPWARDLY EXTENDING LUGS ON SAID SECOND LEVER LOCATED OUTSIDE THE ENGINE CONTROLLER AND ENGAGING THE FOOT LEVER ON ITS OPPOSITE SIDES SO THAT THE SECOND LEVER MOVES WITH THE FOOT LEVER OF THE CONTROLLER, AND AN AIR CONTROLLING VALVE CARRIED BY SAID PLATE AND ACTUATED BY SAID SECOND LEVER TO REGULATE THE FLOW OF TURBINE-DRIVING AIR DISCHARGE FROM SAID ASSEMBLY.
Claim 2
Dependent Claim
107 words
A FOOT ACTUATED CONTROLLER ASSEMBLY FOR DENTAL HANDPIECES COMPRISING A BASE SECURED TO THE BOTTOM OF A RHEOSTAT DENTAL ENGINE CONTROLLER, SAID RHEOSTAT HAVING A RADIALLY PROJECTING FOOT LEVER, A SECOND LEVER PIVOTALLY MOUNTED ON SAID BASE AND PROJECTING RADIALLY FROM THE ASSEMBLY BELOW THE FOOT LEVER, UPWARDLY EXTENDING LUGS ON SAID SECOND LEVER LOCATED OUTSIDE THE ENGINE CONTROLLER AND ENGAGING THE FOOT LEVER ON ITS OPPOSITE SIDES SO THAT THE SECOND LEVER MOVES WITH THE FOOT LEVER OF THE CONTROLLER, AND AN AIR CONTROLLING VALVE CARRIED BY SAID PLATE AND ACTUATED BY SAID SECOND LEVER TO REGULATE THE FLOW OF TURBINE-DRIVING AIR DISCHARGE FROM SAID ASSEMBLY.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |