Patent FR895750A successfully refreshed from Google Patents.
US3173136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable volume horn system
Assignee: Individual
•
Filing: 1960-12-01
•
Granted: 1965-03-09
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Duane E Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:16
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A VARIABLE VOLUME HORN SYSTEM COMPRISING A FIRST COINCIDENCE GATE, AN OSCILLATOR HAVING ITS OUTPUT CONNECTED AS AN INPUT TO SAID FIRST COINCIDENCE GATE, A MULTIVIBRATOR HAVING ONE OF ITS OUTPUT CONNECTED AS A SECOND INPUT TO SAID FIRST COINCIDENCE GATE, AN AMPLIFIER HAVING AN OUTPUT VARIABLE IN RESPONSE TO A CONTROL SIGNAL, THE OUTPUT OF SAID FIRST COINCIDENCE GATE BEING APPLIED AS AN INPUT TO THE VARIABLE AMPLIFIER, FIRST TRANSDUCING MEANS, THE OUTPUT OF SAID AMPLIFIER BEING COUPLED TO SAID FIRST TRANSDUCING MEANS, SECOND TRANSDUCING MEANS, A SECOND COINCIDENCE GATE, THE OUTPUT OF SAID SECOND TRANSDUCING MEANS BEING COUPLED TO AS AN INPUT TO SAID SECOND COINCIDENCE GATE, THE OTHER OUTPUT OF SAID MULTIVIBRATOR BEING COUPLED AS A SECOND INPUT TO SAID SECOND COINCIDENCE GATE, THE OUTPUT OF SAID SECOND COINCIDENCE GATE BEING COUPLED TO SAID VARIABLE AMPLIFIER AS SAID CONTROL SIGNAL FOR VARYING THE OUTPUT OF THE AMPLIFIER IN ACCORDANCE WITH THE OUTPUT OF SAID SECOND TRANSDUCER MEANS.
Claim 2
Dependent Claim
160 words
A VARIABLE VOLUME HORN SYSTEM COMPRISING A FIRST COINCIDENCE GATE, AN OSCILLATOR HAVING ITS OUTPUT CONNECTED AS AN INPUT TO SAID FIRST COINCIDENCE GATE, A MULTIVIBRATOR HAVING ONE OF ITS OUTPUT CONNECTED AS A SECOND INPUT TO SAID FIRST COINCIDENCE GATE, AN AMPLIFIER HAVING AN OUTPUT VARIABLE IN RESPONSE TO A CONTROL SIGNAL, THE OUTPUT OF SAID FIRST COINCIDENCE GATE BEING APPLIED AS AN INPUT TO THE VARIABLE AMPLIFIER, FIRST TRANSDUCING MEANS, THE OUTPUT OF SAID AMPLIFIER BEING COUPLED TO SAID FIRST TRANSDUCING MEANS, SECOND TRANSDUCING MEANS, A SECOND COINCIDENCE GATE, THE OUTPUT OF SAID SECOND TRANSDUCING MEANS BEING COUPLED TO AS AN INPUT TO SAID SECOND COINCIDENCE GATE, THE OTHER OUTPUT OF SAID MULTIVIBRATOR BEING COUPLED AS A SECOND INPUT TO SAID SECOND COINCIDENCE GATE, THE OUTPUT OF SAID SECOND COINCIDENCE GATE BEING COUPLED TO SAID VARIABLE AMPLIFIER AS SAID CONTROL SIGNAL FOR VARYING THE OUTPUT OF THE AMPLIFIER IN ACCORDANCE WITH THE OUTPUT OF SAID SECOND TRANSDUCER MEANS.
References Cited (Backward Citations)
US1661058A
Cited
US2165509A
Cited
FR1091421A
Cited
US2963693A
Cited
US2910689A
Cited
US3049699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |