Patent US3093700A successfully refreshed from Google Patents.
US3093700A
Expired / Lapsed
US
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Electronic tremulant system
Assignee: Individual
•
Filing: 1959-09-21
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Granted: 1963-06-11
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Expires: 1979-09-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas J George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:05
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A TREMULANT CIRCUIT FOR MUSICAL INSTRUMENTS COMPRISING AN AUDIO SIGNAL SOURCE, A VIBRATO OSCILLATOR SIGNAL SOURCE, A SINGLE STAGE VARIABLE GAIN AMPLIFIER HAVING AN OUTPUT AND FIRST AND SECOND INPUTS FOR COMBINING SAID AUDIO SIGNAL AND SAID VIBRATO OSCILLATOR SIGNAL TO PRODUCE A DISCONTINUOUS SIGNAL OF OPPOSITE PHASE FROM SAID AUDIO SIGNAL, MEANS CONNECTING SAID AUDIO SIGNAL SOURCE TO SAID FIRST INPUT, MEANS CONNECTING SAID VIBRATO OSCILLATOR SOURCE TO SAID SECOND INPUT AND A FEED-FORWARD PATH CONNECTING SAID SOURCE OF AUDIO SIGNALS TO THE OUTPUT OF SAID VARIABLE GAIN AMPLIFIER WITHOUT CHANGING THE PHASE OF SAID AUDIO SIGNAL, WHEREBY SAID DISCONTINUOUS SIGNAL AND SAID AUDIO SIGNAL ARE COMBINED TO PRODUCE A TREMULANT SIGNAL OF DESIRED CHARACTERISTIC.
Claim 2
Dependent Claim
116 words
A TREMULANT CIRCUIT FOR MUSICAL INSTRUMENTS COMPRISING AN AUDIO SIGNAL SOURCE, A VIBRATO OSCILLATOR SIGNAL SOURCE, A SINGLE STAGE VARIABLE GAIN AMPLIFIER HAVING AN OUTPUT AND FIRST AND SECOND INPUTS FOR COMBINING SAID AUDIO SIGNAL AND SAID VIBRATO OSCILLATOR SIGNAL TO PRODUCE A DISCONTINUOUS SIGNAL OF OPPOSITE PHASE FROM SAID AUDIO SIGNAL, MEANS CONNECTING SAID AUDIO SIGNAL SOURCE TO SAID FIRST INPUT, MEANS CONNECTING SAID VIBRATO OSCILLATOR SOURCE TO SAID SECOND INPUT AND A FEED-FORWARD PATH CONNECTING SAID SOURCE OF AUDIO SIGNALS TO THE OUTPUT OF SAID VARIABLE GAIN AMPLIFIER WITHOUT CHANGING THE PHASE OF SAID AUDIO SIGNAL, WHEREBY SAID DISCONTINUOUS SIGNAL AND SAID AUDIO SIGNAL ARE COMBINED TO PRODUCE A TREMULANT SIGNAL OF DESIRED CHARACTERISTIC.
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |