US3341842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical signal generator
Assignee: Angelus SA
•
Filing: 1965-08-27
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Granted: 1967-09-12
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Jean F Breguet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:39
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
AN ACOUSTICAL GENERATING CIRCUIT COMPRISING: ACOUSTICAL SIGNAL MEANS; VOLTAGE SUPPLY MEANS HAVING OPPOSITE TERMINALS; A TRANSISTOR HAVING A BASE ELECTRODE AND TWO WORKING ELECTRODES COMPRISING A COLLECTOR AND AN EMITTER; A TRANSFORMER HAVING A PRIMARY WITH AT LEAST TWO TERMINALS AND A SECONDARY WITH TWO SECONDARY WINDINGS, AND IN WHICH ONE OF SAID SECONDARY WINDINGS IS CONNECTED BETWEEN THE BASE ELECTRODE AND ONE WORKING ELECTRODE OF SAID TRANSISTOR, AND SAID SIGNAL MEANS IS CONNECTED WITH THE OTHER SAID SECONDARY WINDINGS AND HAVING ALSO AT LEAST TWO TERMINALS; A PRIMARY CIRCUIT COMPRISING MEANS CONNECTING ONE TERMINAL OF SAID PRIMARY WITH ONE TERMINAL OF SAID VOLTAGE SUPPLY MEANS, MEANS CONNECTING ANOTHER TERMINAL OF SAID PRIMARY WITH ONE WORKING ELECTRODE OF SAID TRANSISTOR AND MEANS CONNECTING THE OTHER WORKING ELECTRODE OF SAID TRANSISTOR WITH THE OPPOSITE TERMINAL OF SAID POWER SUPPLY MEANS, AND A SECONDARY CIRCUIT COMPRISING MEANS INCLUDING AN IMPEDANCE CONNECTING ONE TERMINAL OF SAID SECONDARY WITH ONE WORKING ELECTRODE OF SAID TRANSISTOR AND CONNECTING ANOTHER TERMINAL OF SAID SECONDARY WITH SAID BASE ELECTRODE OF SAID TRANSISTOR; SAID ACOUSTICAL SIGNAL MEANS BEING CONNECTED IN SAID SECONDARY CIRCUIT FOR OPERATION BY SECONDARY CURRENT OF SAID TRANSFORMER.
Claim 2
Dependent Claim
193 words
AN ACOUSTICAL GENERATING CIRCUIT COMPRISING: ACOUSTICAL SIGNAL MEANS; VOLTAGE SUPPLY MEANS HAVING OPPOSITE TERMINALS; A TRANSISTOR HAVING A BASE ELECTRODE AND TWO WORKING ELECTRODES COMPRISING A COLLECTOR AND AN EMITTER; A TRANSFORMER HAVING A PRIMARY WITH AT LEAST TWO TERMINALS AND A SECONDARY WITH TWO SECONDARY WINDINGS, AND IN WHICH ONE OF SAID SECONDARY WINDINGS IS CONNECTED BETWEEN THE BASE ELECTRODE AND ONE WORKING ELECTRODE OF SAID TRANSISTOR, AND SAID SIGNAL MEANS IS CONNECTED WITH THE OTHER SAID SECONDARY WINDINGS AND HAVING ALSO AT LEAST TWO TERMINALS; A PRIMARY CIRCUIT COMPRISING MEANS CONNECTING ONE TERMINAL OF SAID PRIMARY WITH ONE TERMINAL OF SAID VOLTAGE SUPPLY MEANS, MEANS CONNECTING ANOTHER TERMINAL OF SAID PRIMARY WITH ONE WORKING ELECTRODE OF SAID TRANSISTOR AND MEANS CONNECTING THE OTHER WORKING ELECTRODE OF SAID TRANSISTOR WITH THE OPPOSITE TERMINAL OF SAID POWER SUPPLY MEANS, AND A SECONDARY CIRCUIT COMPRISING MEANS INCLUDING AN IMPEDANCE CONNECTING ONE TERMINAL OF SAID SECONDARY WITH ONE WORKING ELECTRODE OF SAID TRANSISTOR AND CONNECTING ANOTHER TERMINAL OF SAID SECONDARY WITH SAID BASE ELECTRODE OF SAID TRANSISTOR; SAID ACOUSTICAL SIGNAL MEANS BEING CONNECTED IN SAID SECONDARY CIRCUIT FOR OPERATION BY SECONDARY CURRENT OF SAID TRANSFORMER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |