US3291886A
Expired / Lapsed
US
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Transient tone signal circuits
Assignee: Rodgers Organ Co
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Filing: 1963-10-21
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Granted: 1966-12-13
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Tinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/06; G10H1/14; Y; Y10; Y10S; Y10S84/00; Y10S84/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN AN ELECTRIC MUSICAL INSTRUMENT HAVING A PLURALITY OF TONE GENERATORS EACH GENERATING A TONE SIGNAL OF A DIFFERENT FREQUENCY AND ALSO HAVING A SOURCE OF KEYING ELECTRICAL ENERGY FOR THE GENERATORS AND AN OUTPUT CIRCUIT, THE IMPROVEMENT COMPRISING: A KEYING CIRCUIT MEANS ASSOCIATED WITH EACH GENERATOR, INCLUDING A KEYING SWITCH MEANS AND VOLTAGE DROPPING MEANS COMPRISING A RESISTOR CAPABLE OF BILATERAL CURRENT CONDUCTION CONNECTED BETWEEN THE SWITCH MEANS AND THE ASSOCIATED GENERATOR FOR SUPPLYING KEYING ENERGY FROM THE SOURCE TO SAID ASSOCIATED GENERATOR TO CAUSE A TONE SIGNAL OF A FIRST FREQUENCY TO BE DELIVERED FROM SAID ASSOCIATED GENERATOR TO THE OUTPUT CIRCUIT WHEN THE SWITCH MEANS IS ACTUATED,
Claim 2
Dependent Claim
110 words
IN AN ELECTRIC MUSICAL INSTRUMENT HAVING A PLURALITY OF TONE GENERATORS EACH GENERATING A TONE SIGNAL OF A DIFFERENT FREQUENCY AND ALSO HAVING A SOURCE OF KEYING ELECTRICAL ENERGY FOR THE GENERATORS AND AN OUTPUT CIRCUIT, THE IMPROVEMENT COMPRISING: A KEYING CIRCUIT MEANS ASSOCIATED WITH EACH GENERATOR, INCLUDING A KEYING SWITCH MEANS AND VOLTAGE DROPPING MEANS COMPRISING A RESISTOR CAPABLE OF BILATERAL CURRENT CONDUCTION CONNECTED BETWEEN THE SWITCH MEANS AND THE ASSOCIATED GENERATOR FOR SUPPLYING KEYING ENERGY FROM THE SOURCE TO SAID ASSOCIATED GENERATOR TO CAUSE A TONE SIGNAL OF A FIRST FREQUENCY TO BE DELIVERED FROM SAID ASSOCIATED GENERATOR TO THE OUTPUT CIRCUIT WHEN THE SWITCH MEANS IS ACTUATED,
References Cited (Backward Citations)
US2486208A
Cited
US3037413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |