US3136059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental handpiece
Assignee: Individual
•
Filing: 1961-05-24
•
Granted: 1964-06-09
•
Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Milton E Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:04
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/052; A61C1/055; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A HANDPIECE COMPRISING; A HOUSING AND A TUBULAR DRIVE SHAFT CARRIED THEREBY AND FORMED WITH A FULL LENGTH AXIAL BORE ADAPTED FOR RECEIPT AT ONE END OF SAID SHAFT OF A TUBULAR DRILL SHANK, SAID HOUSING BEING FORMED WITH AN OPENING COAXIALLY ALIGNED WITH THE OPPOSITE END OF SAID SHAFT, A FLUID INJECTION NOZZLE MOUNTED IN SAID OPENING AND BEING ADAPTED FOR CONNECTION TO A SOURCE OF COOLANT AND PROVIDING AN AXIAL ENTRY OF COOLANT INTO SAID SHAFT BORE, SAID NOZZLE HAVING AN EXTERIOR HANDLE PORTION FORMED FOR MANUAL ENGAGEMENT, AND LATCH MEANS DEMOUNTABLY SECURING SAID NOZZLE IN POSITION IN SAID OPENING AND PERMITTING MANUAL REMOVAL OF SAID NOZZLE THEREFROM TO PROVIDE AN AXIAL ACCESS OPENING TO SAID LAST-NAMED SHAFT END FOR INSERTION OF A DRILL EJECTION TOOL INTO SAID SHAFT BORE.
Claim 2
Dependent Claim
132 words
A HANDPIECE COMPRISING; A HOUSING AND A TUBULAR DRIVE SHAFT CARRIED THEREBY AND FORMED WITH A FULL LENGTH AXIAL BORE ADAPTED FOR RECEIPT AT ONE END OF SAID SHAFT OF A TUBULAR DRILL SHANK, SAID HOUSING BEING FORMED WITH AN OPENING COAXIALLY ALIGNED WITH THE OPPOSITE END OF SAID SHAFT, A FLUID INJECTION NOZZLE MOUNTED IN SAID OPENING AND BEING ADAPTED FOR CONNECTION TO A SOURCE OF COOLANT AND PROVIDING AN AXIAL ENTRY OF COOLANT INTO SAID SHAFT BORE, SAID NOZZLE HAVING AN EXTERIOR HANDLE PORTION FORMED FOR MANUAL ENGAGEMENT, AND LATCH MEANS DEMOUNTABLY SECURING SAID NOZZLE IN POSITION IN SAID OPENING AND PERMITTING MANUAL REMOVAL OF SAID NOZZLE THEREFROM TO PROVIDE AN AXIAL ACCESS OPENING TO SAID LAST-NAMED SHAFT END FOR INSERTION OF A DRILL EJECTION TOOL INTO SAID SHAFT BORE.
References Cited (Backward Citations)
US1123730A
Cited
US2442033A
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US2738528A
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US2707329A
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US2799934A
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US2838837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |