US3079559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic automobile radio volume adjuster
Assignee: Individual
•
Filing: 1960-11-07
•
Granted: 1963-02-26
•
Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Charles W Sehy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:12
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN AUTOMATIC VEHICLE RADIO VOLUME STEP CONTROL COMPRISING A PLURALITY OF VARIABLE RESISTANCE CONNECTED IN SERIES WITH THE RADIO SPEAKER, NORMALLY OPEN SHUNT SWITCHES EACH CONNECTED IN PARALLEL WITH ONE OF THE RESISTANCES AND SHORT CIRCUITING SUCH RESISTANCE WHEN CLOSED, AND AN ACTUATING DEVICE RESPONSIVE TO AIR PRESSURE IN ACCORDANCE WITH VEHICLE MOVEMENT TO SEQUENTIALLY CLOSE THE SWITCHES WITH PROGRESSIVE STEP INCREASES IN PRESSURE TO INCREASE THE RADIO VOLUME IN STEPS AS EACH RESISTANCE IS SHORT CIRCUITED.
Claim 2
Dependent Claim
77 words
AN AUTOMATIC VEHICLE RADIO VOLUME STEP CONTROL COMPRISING A PLURALITY OF VARIABLE RESISTANCE CONNECTED IN SERIES WITH THE RADIO SPEAKER, NORMALLY OPEN SHUNT SWITCHES EACH CONNECTED IN PARALLEL WITH ONE OF THE RESISTANCES AND SHORT CIRCUITING SUCH RESISTANCE WHEN CLOSED, AND AN ACTUATING DEVICE RESPONSIVE TO AIR PRESSURE IN ACCORDANCE WITH VEHICLE MOVEMENT TO SEQUENTIALLY CLOSE THE SWITCHES WITH PROGRESSIVE STEP INCREASES IN PRESSURE TO INCREASE THE RADIO VOLUME IN STEPS AS EACH RESISTANCE IS SHORT CIRCUITED.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |