Patent US3411081A successfully refreshed from Google Patents.
Patent US3230614A successfully refreshed from Google Patents.
US3230614A
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Method and apparatus for automatically tuning mechanical frequency sources
Assignee: MUSIKINSTRUMENTENBAU MUSIMA VE
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Filing: 1963-06-13
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Granted: 1966-01-25
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Expires: 1983-06-13
Abstract
No abstract record available.
Inventors
- 👤 Rasch Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
G; G10; G10F; G10F1/00; G10F1/06; G01; G01H; G01H13/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4957; Y10T29/49764; Y10T29/49771; Y10T409/00; Y10T409/30; Y10T409/303864
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
APPARATUS FOR TUNING A MECHANICAL FREQUENCY SOURCE, COMPRISING MEANS FOR VIBRATING SOURCE, MEANS FOR GENERATING AN ELECTRICAL SIGNAL HAVING A FREQUENCY PROPORTIONAL TO THE FREQUENCY OF VIBRATION OF SAID SOURCE, MEANS FOR GENERATING AN ERROR SIGNAL PROPORTIONAL TO THE DIFFERENCE IN FREQUENCY BETWEEN SAID SIGNAL AND A PREDETERMINED FREQUENCY, AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR CHANGING THE PHYSICAL DIMENSIONS OF SAID SOURCE IN ORDER TO VARY THE RESONANT FREQUENCY THEREOF.
Claim 2
Dependent Claim
72 words
APPARATUS FOR TUNING A MECHANICAL FREQUENCY SOURCE, COMPRISING MEANS FOR VIBRATING SOURCE, MEANS FOR GENERATING AN ELECTRICAL SIGNAL HAVING A FREQUENCY PROPORTIONAL TO THE FREQUENCY OF VIBRATION OF SAID SOURCE, MEANS FOR GENERATING AN ERROR SIGNAL PROPORTIONAL TO THE DIFFERENCE IN FREQUENCY BETWEEN SAID SIGNAL AND A PREDETERMINED FREQUENCY, AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR CHANGING THE PHYSICAL DIMENSIONS OF SAID SOURCE IN ORDER TO VARY THE RESONANT FREQUENCY THEREOF.
References Cited (Backward Citations)
US1446095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |