US3173207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air driven turbine dental handpiece and air and water connections therefor
Assignee: Ritter Co Inc
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Filing: 1959-12-28
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Granted: 1965-03-16
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Karl H Burzlaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:22
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/181; A61C1/02; A61C1/05; A61C1/052; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN COMBINATION WITH A DENTAL HANDPIECE MEMBER HAVING A TURBINE FOR DRIVING A DENTAL TOOL AND A FLUIDS SUPPLY LINE MEMBER, CONDUIT MEANS HAVING TWO SEPARATE CHANNELS THROUGH WHICH SAID AIR AND WATER FLUIDS ARE CONDUCTED SEPARATELY FROM SOURCES OF SUPPLY; A FIRST CONDUCTOR THROUGH WHICH A FIRST OF SAID FLUIDS IS CONDUCTED; A SECOND CONDUCTOR THROUGH WHICH A SECOND OF SAID FLUIDS IS CONDUCTED, SAID SECOND CONDUCTOR BEING CONCENTRIC WITH SAID FIRST CONDUCTOR, BOTH SAID CONDUCTORS BEING ROTATABLY MOUNTED RELATIVE TO SAID CONDUIT MEANS, AND CONNECTOR MEANS INTERMEDIATE SAID CONDUIT MEANS AND SAID CONDUCTORS FOR CHANNELING SAID FIRST FLUID FROM SAID CONDUIT MEANS SUBSTANTIALLY RADIALLY TO SAID FIRST CONDUCTOR AND FOR CHANNELING SAID SECOND FLUID FROM SAID CONDUIT MEANS TO SAID SECOND CONDUCTOR WITHOUT COMMINGLING OR INTERRUPTING FLOW OF SAID FLUIDS DURING RELATIVE ROTATION OF SAID CONDUIT MEANS AND SAID CONDUCTORS.
Claim 2
Dependent Claim
142 words
IN COMBINATION WITH A DENTAL HANDPIECE MEMBER HAVING A TURBINE FOR DRIVING A DENTAL TOOL AND A FLUIDS SUPPLY LINE MEMBER, CONDUIT MEANS HAVING TWO SEPARATE CHANNELS THROUGH WHICH SAID AIR AND WATER FLUIDS ARE CONDUCTED SEPARATELY FROM SOURCES OF SUPPLY; A FIRST CONDUCTOR THROUGH WHICH A FIRST OF SAID FLUIDS IS CONDUCTED; A SECOND CONDUCTOR THROUGH WHICH A SECOND OF SAID FLUIDS IS CONDUCTED, SAID SECOND CONDUCTOR BEING CONCENTRIC WITH SAID FIRST CONDUCTOR, BOTH SAID CONDUCTORS BEING ROTATABLY MOUNTED RELATIVE TO SAID CONDUIT MEANS, AND CONNECTOR MEANS INTERMEDIATE SAID CONDUIT MEANS AND SAID CONDUCTORS FOR CHANNELING SAID FIRST FLUID FROM SAID CONDUIT MEANS SUBSTANTIALLY RADIALLY TO SAID FIRST CONDUCTOR AND FOR CHANNELING SAID SECOND FLUID FROM SAID CONDUIT MEANS TO SAID SECOND CONDUCTOR WITHOUT COMMINGLING OR INTERRUPTING FLOW OF SAID FLUIDS DURING RELATIVE ROTATION OF SAID CONDUIT MEANS AND SAID CONDUCTORS.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |