US3425124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental handpiece
Assignee: Kaltenbach and Voigt GmbH
•
Filing: 1963-11-19
•
Granted: 1969-02-04
•
Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Erich Hoffmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:33
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/06; A61C1/05; A61C1/052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A DENTAL HANDPIECE COMPRISING A HANDLE SLEEVE, A SECOND SLEEVE DETACHABLY CONNECTED TO THE HANDLE SLEEVE AND INCLUDING A PORTIKON HAVING A CROSS-SECTION OF GREATER SIZE THAN THAT OF THE HANDLE SLEEVE, AND ELECTRICALLY OPERATED FRACTIONAL HOSREPOWER MOTOR MOUNTED WITHIN SAID PORTION OF THE SECOND SLEEVE, A COOLING WATER JACKET THROUGH WHICH COOLING WATER CAN FLOW, SAID JACKET BEING MOUNTED IN SAID SECOND SLEEVE AND SURROUNDING THE MOTOR TO COOL THE SAME, SAID JACKET HAVING A GREATER CROSS-SECTIONAL EXTENT THAN THAT OF SAID HANDLE SLEEVE, AND A CONDUIT COUPLED TO AND PROVIDING FOR THE DISCHARGE OF WATER FROM SAID COOLING WATER JACKET, SAID CONDUIT BEING SO ARRANGED THAT COOLING WATER CAN BE CONVEYED FROM THE COOLING WATER JACKET TOWARD AND FOR THE CONCOMITANT COOLING OF A TOOL MOUNTED IN THE HANDPIECE.
Claim 2
Dependent Claim
131 words
A DENTAL HANDPIECE COMPRISING A HANDLE SLEEVE, A SECOND SLEEVE DETACHABLY CONNECTED TO THE HANDLE SLEEVE AND INCLUDING A PORTIKON HAVING A CROSS-SECTION OF GREATER SIZE THAN THAT OF THE HANDLE SLEEVE, AND ELECTRICALLY OPERATED FRACTIONAL HOSREPOWER MOTOR MOUNTED WITHIN SAID PORTION OF THE SECOND SLEEVE, A COOLING WATER JACKET THROUGH WHICH COOLING WATER CAN FLOW, SAID JACKET BEING MOUNTED IN SAID SECOND SLEEVE AND SURROUNDING THE MOTOR TO COOL THE SAME, SAID JACKET HAVING A GREATER CROSS-SECTIONAL EXTENT THAN THAT OF SAID HANDLE SLEEVE, AND A CONDUIT COUPLED TO AND PROVIDING FOR THE DISCHARGE OF WATER FROM SAID COOLING WATER JACKET, SAID CONDUIT BEING SO ARRANGED THAT COOLING WATER CAN BE CONVEYED FROM THE COOLING WATER JACKET TOWARD AND FOR THE CONCOMITANT COOLING OF A TOOL MOUNTED IN THE HANDPIECE.
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |