US3332041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tone control circuit
Assignee: Bendix Corp
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Filing: 1962-11-16
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Granted: 1967-07-18
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Expires: 1982-11-16
Abstract
No abstract record available.
Inventors
- 👤 George A Wilson
- 👤 Hammond B Dorsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:30
CPC Classifications
H; H03; H03G; H03G5/00; H03G5/02; H03G5/04; H03G9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A TONE CONTROL CIRCUIT FOR AN AUDIO AMPLIFIER CONSISTING OF AN INPUT TERMINAL, A TAPPED VOLUME CONTROL POTENTIOMETER CONNECTED BETWEEN SAID INPUT TERMINAL AND A COMMON TERMINAL, A RESISTOR HAVING ONE SIDE CONNECTED TO SAID TAP, AND CAPACITANCE MEANS CONNECTED BETWEEN THE OPPOSITE SIDE OF SAID RESISTOR AND COMMON: TONE SELECTING MEANS INCLUDING RESISTANCE MEANS CONNECTABLE IN PARALLEL WITH SAID VOLUME CONTROL POTENTIOMETER BETWEEN SAID INPUT AND COMMON, AND SWITCHING MEANS CAPABLE OF SELECTING FROM AMONG A PLURALITY OF POSITIONS CONNECTED TO THE JUNCTION BETWEEN SAID RESISTOR AND SAID CAPACITANCE MEANS WHICH, WHEN IN A FIRST POSITION PROVIDES A SHORT CIRCUIT CONNECTION ACROSS SAID CAPACITANCE MEANS, WHEN IN A SECOND POSITION DISCONNECTS SAID RESISTANCE MEANS FROM SAID CIRCUIT, WHEN IN A THIRD POSITION CONNECTS SAID RESISTANCE MEANS ACROSS AT LEAST PART OF SAID POTENTIOMETER, AND WHEN IN A FOURTH POSITION CONNECTS SAID JUNCTION WITH SAID INPUT TERMINAL.
Claim 2
Dependent Claim
147 words
A TONE CONTROL CIRCUIT FOR AN AUDIO AMPLIFIER CONSISTING OF AN INPUT TERMINAL, A TAPPED VOLUME CONTROL POTENTIOMETER CONNECTED BETWEEN SAID INPUT TERMINAL AND A COMMON TERMINAL, A RESISTOR HAVING ONE SIDE CONNECTED TO SAID TAP, AND CAPACITANCE MEANS CONNECTED BETWEEN THE OPPOSITE SIDE OF SAID RESISTOR AND COMMON: TONE SELECTING MEANS INCLUDING RESISTANCE MEANS CONNECTABLE IN PARALLEL WITH SAID VOLUME CONTROL POTENTIOMETER BETWEEN SAID INPUT AND COMMON, AND SWITCHING MEANS CAPABLE OF SELECTING FROM AMONG A PLURALITY OF POSITIONS CONNECTED TO THE JUNCTION BETWEEN SAID RESISTOR AND SAID CAPACITANCE MEANS WHICH, WHEN IN A FIRST POSITION PROVIDES A SHORT CIRCUIT CONNECTION ACROSS SAID CAPACITANCE MEANS, WHEN IN A SECOND POSITION DISCONNECTS SAID RESISTANCE MEANS FROM SAID CIRCUIT, WHEN IN A THIRD POSITION CONNECTS SAID RESISTANCE MEANS ACROSS AT LEAST PART OF SAID POTENTIOMETER, AND WHEN IN A FOURTH POSITION CONNECTS SAID JUNCTION WITH SAID INPUT TERMINAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |