Patent US3416328A successfully refreshed from Google Patents.
US3094780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental control assemblies
Assignee: Weber Dental Manufacturing Co
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Filing: 1957-11-01
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Granted: 1963-06-25
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Expires: 1977-11-01
Abstract
No abstract record available.
Inventors
- 👤 John A Maurer
- 👤 Victor R Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:14
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
THE COMBINATION OF A SINGLE MAIN ELECTRICAL CONTROL HAVING A SINGLE SELECTIVELY MOVABLE OPERATING MEMBER AND AT LEAST TWO DENTAL HANDPIECE DRIVING UNITS, EACH SEPARATELY ACTIONABLE BY ELECTRIC POWER FOR DRIVING SEPARATE DENTAL HANDPIECES; THE OPERATING MEMBER ON THE MAIN ELECTRICAL CONTROL BEING SELECTIVELY MOVABLE BETWEEN POSITIONS TRANSMITTING ELECTRIC POWER THROUGH SAID MAIN CONTROL AND INTERRUPTING ELECTRIC POWER THROUGH SAID MAIN CONTROL; CONTROL SWITCH MEANS ELECTRICALLY CONNECTED TO THE MAIN ELECTRICAL CONTROL AND SEPARATELY TO THE TWO DENTAL HANDPIECE DRIVING UNITS, SELECTIVELY MOVABLE TO A POSITION TRANSMITTING ELECTRIC POWER FROM THE MAIN CONTROL TO ONE OF SAID DENTAL HANDPIECE DRIVING UNITS FOR ACTUATING SAID ONE DRIVING UNIT WHEN THE MAIN CONTROL OPERATING MEMBER IS MOVED TO SAID TRANSMITTING POSITION, AND SELECTIVELY MOVABLE TO A POSITION TRANSMITTING ELECTRIC POWER FROM THE MAIN CONTROL TO THE OTHER OF THE DENTAL HANDPIECE DRIVING UNITS FOR ACTUATING SAID OTHER DRIVING UNIT WHEN THE MAIN CONTROL OPERATING MEMBER IS MOVED TO SAID TRANSMITTING POSITION; WHEREBY, AT LEAST TWO DENTAL HANDPIECE DRIVING UNITS, EACH SEPARATELY DRIVING DENTAL HANDPIECES, MAY BE ALTERNATELY AND SELECTIVELY CONTROLLED THROUGH THE SAME MAIN ELECTRICAL CONTROL AND BY THE SAME OPERATING MEMBER ON SAID MAIN ELECTRICAL CONTROL.
Claim 2
Dependent Claim
195 words
THE COMBINATION OF A SINGLE MAIN ELECTRICAL CONTROL HAVING A SINGLE SELECTIVELY MOVABLE OPERATING MEMBER AND AT LEAST TWO DENTAL HANDPIECE DRIVING UNITS, EACH SEPARATELY ACTIONABLE BY ELECTRIC POWER FOR DRIVING SEPARATE DENTAL HANDPIECES; THE OPERATING MEMBER ON THE MAIN ELECTRICAL CONTROL BEING SELECTIVELY MOVABLE BETWEEN POSITIONS TRANSMITTING ELECTRIC POWER THROUGH SAID MAIN CONTROL AND INTERRUPTING ELECTRIC POWER THROUGH SAID MAIN CONTROL; CONTROL SWITCH MEANS ELECTRICALLY CONNECTED TO THE MAIN ELECTRICAL CONTROL AND SEPARATELY TO THE TWO DENTAL HANDPIECE DRIVING UNITS, SELECTIVELY MOVABLE TO A POSITION TRANSMITTING ELECTRIC POWER FROM THE MAIN CONTROL TO ONE OF SAID DENTAL HANDPIECE DRIVING UNITS FOR ACTUATING SAID ONE DRIVING UNIT WHEN THE MAIN CONTROL OPERATING MEMBER IS MOVED TO SAID TRANSMITTING POSITION, AND SELECTIVELY MOVABLE TO A POSITION TRANSMITTING ELECTRIC POWER FROM THE MAIN CONTROL TO THE OTHER OF THE DENTAL HANDPIECE DRIVING UNITS FOR ACTUATING SAID OTHER DRIVING UNIT WHEN THE MAIN CONTROL OPERATING MEMBER IS MOVED TO SAID TRANSMITTING POSITION; WHEREBY, AT LEAST TWO DENTAL HANDPIECE DRIVING UNITS, EACH SEPARATELY DRIVING DENTAL HANDPIECES, MAY BE ALTERNATELY AND SELECTIVELY CONTROLLED THROUGH THE SAME MAIN ELECTRICAL CONTROL AND BY THE SAME OPERATING MEMBER ON SAID MAIN ELECTRICAL CONTROL.
References Cited (Backward Citations)
US1463168A
Cited
US2542833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |