US3673709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental instrument operating system
Assignee: Individual
•
Filing: 1970-07-17
•
Granted: 1972-07-04
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Expires: 1990-07-17
Abstract
Abstract An arrangement of air-driven dental instruments is provided with foot control means for regulating supply of power air, syringe air and water and chip blower air, which, through pneumatically operated valve mechanism, controls air and water supplies. Bleed valve means, in the clip means for holding the cable of an instrument which is in use, operates selector valves for directing the controlled fluids to the proper instrument.
Inventors
- 👤 Richard W Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:46
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
In a dental instrument control system, foot controller means for controlling supplies of turbine air, spray air and chip air, and air for controlling supply of spray water, selector valve means comprising an arrangement of valves in an aligned series according to air supplies from the foot controller and in aligned crosswise series according to each of a plurality of instruments, air manifolds running crosswise of the first said series and supplying air controlled by the valves of a said aligned crosswise series, operating members running crosswise of the manifolds for operating one valve for each air supply for selected instruments, each member having a diaphragm assembly for operating it, and valving means controllable according to the instrument selected for use for actuating a said diaphragm assembly to supply operating fluids to said instrument.
Claim 2
Dependent Claim
134 words
In a dental instrument control system, foot controller means for controlling supplies of turbine air, spray air and chip air, and air for controlling supply of spray water, selector valve means comprising an arrangement of valves in an aligned series according to air supplies from the foot controller and in aligned crosswise series according to each of a plurality of instruments, air manifolds running crosswise of the first said series and supplying air controlled by the valves of a said aligned crosswise series, operating members running crosswise of the manifolds for operating one valve for each air supply for selected instruments, each member having a diaphragm assembly for operating it, and valving means controllable according to the instrument selected for use for actuating a said diaphragm assembly to supply operating fluids to said instrument.
Claim 3
Dependent Claim
30 words
A control system according to claim 1, in which the last said valving means comprises bleed valves incorporated in hose holding clips and operable by insertion of an instrument hose.
Claim 4
Dependent Claim
52 words
A control system according to claim 1, in which the foot controller comprises a rotatively movable cam, air valves operable thereby for supplying regulated air supply to an instrument turbine, to an air spray and to an air-operated water spray control, and a horizontally moveable foot pedal for rotatively adjusting said cam.
Claim 5
Dependent Claim
36 words
A control system according to claim 3, comprising a vertically movable pedal element, chip air vave control means operable thereby, and a common air line for chip air and spray air leading to a said manifold.
Claim 6
Dependent Claim
46 words
A control system according to claim 4, in which the peDal has a roller carried on a vertical axis at the outboard end of the pedal and over the vertically moveable pedal element, for engagement by the foot to control the horizontal movement of the pedal.
References Cited (Backward Citations)
US3514171A
Cited
US3556669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |