US3079565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical amplifier
Assignee: OFFNER ELECTRONICS Inc
•
Filing: 1956-07-12
•
Granted: 1963-02-26
•
Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Franklin F Offner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN AMPLIFIER OF THE CHOPPER TYPE FOR TRANSMITTING SIGNALS INCLUDING STEP INPUT AND CHARACTERIZED BY HAVING AN OUTPUT RESPONDING ESSENTIALLY COMPLETELY TO SAID STEP INPUT IN ONE COMPLETE CHOPPER CYCLE AND THEREBY TRANSMITTING AN ESSENTIALLY UNDISTORTED FACSIMILE OF SIGNALS CHANGING AT FREQUENCIES BELOW THE CHOPPER FREQUENCY, THE COMBINATION INCLUDING AN INPUT CHOPPER AMPLIFYING MEANS TRANSMITTING THE CHOPPER SIGNAL AS AN ESSENTIALLY SQUARE WAVE, AND DEMODULATOR MEANS, SAID DEMODULATOR MEANS COMPRISING AN OUTPUT CHOPPER OPERATED SYNCHRONOUSLY WITH SAID INPUT CHOPPER AND CONNECTED TO THE OUTPUT SIDE OF SAID AMPLIFYING MEANS, TWO CONDENSERS SO CONNECTED TO SAID OUTPUT CHOPPER THAT ONE CONDENSER IS CHARGED BY THE OUTPUT OF SAID AMPLIFYING MEANS DURING ONE HALF OF THE CHOPPER CYCLE AND THE OTHER CONDENSER SO CHARGED DURING THE OTHER HALF OF SAID CYCLE, EACH SAID CONDENSER BEING SO PROPORTIONED WITH RESPECT TO ANY LOAD CONNECTED TO THE OUTPUT THAT THE VOLTAGE STORED BY THE CONDENSER REMAINS ESSENTIALLY UNCHANGED DURING THE HALF OF THE CHOPPER CYCLE WHEN THE CONDENSER IS DISCONNECTED FROM THE CHOPPER OUTPUT, SAID AMPLIFIER MEANS
Claim 2
Dependent Claim
173 words
AN AMPLIFIER OF THE CHOPPER TYPE FOR TRANSMITTING SIGNALS INCLUDING STEP INPUT AND CHARACTERIZED BY HAVING AN OUTPUT RESPONDING ESSENTIALLY COMPLETELY TO SAID STEP INPUT IN ONE COMPLETE CHOPPER CYCLE AND THEREBY TRANSMITTING AN ESSENTIALLY UNDISTORTED FACSIMILE OF SIGNALS CHANGING AT FREQUENCIES BELOW THE CHOPPER FREQUENCY, THE COMBINATION INCLUDING AN INPUT CHOPPER AMPLIFYING MEANS TRANSMITTING THE CHOPPER SIGNAL AS AN ESSENTIALLY SQUARE WAVE, AND DEMODULATOR MEANS, SAID DEMODULATOR MEANS COMPRISING AN OUTPUT CHOPPER OPERATED SYNCHRONOUSLY WITH SAID INPUT CHOPPER AND CONNECTED TO THE OUTPUT SIDE OF SAID AMPLIFYING MEANS, TWO CONDENSERS SO CONNECTED TO SAID OUTPUT CHOPPER THAT ONE CONDENSER IS CHARGED BY THE OUTPUT OF SAID AMPLIFYING MEANS DURING ONE HALF OF THE CHOPPER CYCLE AND THE OTHER CONDENSER SO CHARGED DURING THE OTHER HALF OF SAID CYCLE, EACH SAID CONDENSER BEING SO PROPORTIONED WITH RESPECT TO ANY LOAD CONNECTED TO THE OUTPUT THAT THE VOLTAGE STORED BY THE CONDENSER REMAINS ESSENTIALLY UNCHANGED DURING THE HALF OF THE CHOPPER CYCLE WHEN THE CONDENSER IS DISCONNECTED FROM THE CHOPPER OUTPUT, SAID AMPLIFIER MEANS
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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) | 1966-02-25 | 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 |