US3364576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hand piece and high-speed turbine assembly
Assignee: HANAU ENGINEERING Co Inc
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Filing: 1957-09-25
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Granted: 1968-01-23
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:07
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DENTAL HAND PIECE COMPRISING IN COMBINATION A MAIN TUBULAR BODY HAVING AN OUTER END AND A POSTERIOR END, A TURBINE HOUSING ATTACHED TO THE OUTER END OF THE BODY AND IN COMMUNICATION THEREWITH, AN ENLARGED RELATIVELY RIGID HOUSING COUPLING MEMBER ATTACHED TO THE POSTERIOR END OF THE TUBULAR BODY AND IN COMMUNICATION THEREWITH, A HIGH PRESSURE AIR CONDUIT EXTENDING THROUGH SAID TUBULAR BODY AND TERMINATING AT ITS POSTERIOR END IN SAID HOUSING COUPLING MEMBER, A WATER SUPPLY CONDUIT EXTENDING THROUGH SAID TUBULAR BODY AND HAVING SPRAY MEANS AT ITS OUTER END AND TERMINATING AT ITS POSTERIOR END IN SAID HOUSING COUPLING MEMBER, DETACHABLE COUPLING MEANS CONNECTED TO SAID ENLARGED HOUSING COUPLING MEMBER AND HAVING A HIGH PRESSURE AIR CONDUIT AND A WATER SUPPLY CONDUIT HOUSED RIGIDLY SPACED APART THEREIN AND CONNECTED RESPECTIVELY WITH THE POSTERIOR ENDS OF SAID AIR AND WATER CONDUITS TERMINATING AT THEIR POSTERIOR ENDS IN SAID HOUSING COUPLING MEMBER, VENT MEANS LEADING TO SAID MAIN TUBULAR BODY AND VENTING ADJACENT SAID ENLARGED HOUSING COUPLING, AN AIR TURBINE ROTOR MOUNTED FOR RO-
Claim 2
Dependent Claim
175 words
A DENTAL HAND PIECE COMPRISING IN COMBINATION A MAIN TUBULAR BODY HAVING AN OUTER END AND A POSTERIOR END, A TURBINE HOUSING ATTACHED TO THE OUTER END OF THE BODY AND IN COMMUNICATION THEREWITH, AN ENLARGED RELATIVELY RIGID HOUSING COUPLING MEMBER ATTACHED TO THE POSTERIOR END OF THE TUBULAR BODY AND IN COMMUNICATION THEREWITH, A HIGH PRESSURE AIR CONDUIT EXTENDING THROUGH SAID TUBULAR BODY AND TERMINATING AT ITS POSTERIOR END IN SAID HOUSING COUPLING MEMBER, A WATER SUPPLY CONDUIT EXTENDING THROUGH SAID TUBULAR BODY AND HAVING SPRAY MEANS AT ITS OUTER END AND TERMINATING AT ITS POSTERIOR END IN SAID HOUSING COUPLING MEMBER, DETACHABLE COUPLING MEANS CONNECTED TO SAID ENLARGED HOUSING COUPLING MEMBER AND HAVING A HIGH PRESSURE AIR CONDUIT AND A WATER SUPPLY CONDUIT HOUSED RIGIDLY SPACED APART THEREIN AND CONNECTED RESPECTIVELY WITH THE POSTERIOR ENDS OF SAID AIR AND WATER CONDUITS TERMINATING AT THEIR POSTERIOR ENDS IN SAID HOUSING COUPLING MEMBER, VENT MEANS LEADING TO SAID MAIN TUBULAR BODY AND VENTING ADJACENT SAID ENLARGED HOUSING COUPLING, AN AIR TURBINE ROTOR MOUNTED FOR RO-
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |