Patent US3293568A successfully refreshed from Google Patents.
US3293568A
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Amplitude stabilized electromechanical oscillator
Assignee: Gebr Junghans AG
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Filing: 1964-02-12
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Granted: 1966-12-20
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Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Ganter
- 👤 Guenther Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:23
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04C3/067; G04C3/068; H; H03; H03B; H03B5/00; H03B5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN AN OSCILLATOR COMPRISING A SEMICONDUCTOR AMPLIFIER THE OUTPUT OF WHICH IS CONNECTED TO A DRIVING COIL FOR COUPLING ENERGY TO A MECHANICAL OSCILLATING ELEMENT, WHICH DRIVING COIL IS COUPLED BACK TO THE INPUT OF SAID AMPLIFIER THROUGH A CONTROL COIL, THE IMPROVEMENT COMPRISING A CONTROLLABLE RESISTANCE CONNECTED IN PARALLEL WITH SAID CONTROL COIL, SAID RESISTANCE BEING RESPONSIVE TO THE AMPLITUDE OF OSCILLATION SUCH THAT IS RESISTANCE VARIES TO KEEP SAID AMPLITUDE CONSTANT.
Claim 2
Dependent Claim
73 words
IN AN OSCILLATOR COMPRISING A SEMICONDUCTOR AMPLIFIER THE OUTPUT OF WHICH IS CONNECTED TO A DRIVING COIL FOR COUPLING ENERGY TO A MECHANICAL OSCILLATING ELEMENT, WHICH DRIVING COIL IS COUPLED BACK TO THE INPUT OF SAID AMPLIFIER THROUGH A CONTROL COIL, THE IMPROVEMENT COMPRISING A CONTROLLABLE RESISTANCE CONNECTED IN PARALLEL WITH SAID CONTROL COIL, SAID RESISTANCE BEING RESPONSIVE TO THE AMPLITUDE OF OSCILLATION SUCH THAT IS RESISTANCE VARIES TO KEEP SAID AMPLITUDE CONSTANT.
References Cited (Backward Citations)
CH350252A
Cited
US3100278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |