US3106686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potentiometer correction circuit
Assignee: Gulton Industries Inc
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Filing: 1961-09-28
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Granted: 1963-10-08
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Expires: 1981-09-28
Abstract
No abstract record available.
Inventors
- 👤 Abrams Daniel
- 👤 Vachitis Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/02; H03G3/04; H03G3/10; H03F; H03F5/00; H03H; H03H7/00; H03H7/24; H03H7/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN COMBINATION WITH A PAIR OF MAIN SIGNAL INPUT TERMINALS ACROSS WHICH A SOURCE OF VOLTAGE WHOSE AMPLITUDE VARIES WITH TIME IS TO BE APPLIED, A POTENTIOMETER INCLUDING A RESISTANCE-FORMING PORTION HAVING A PAIR OF SIGNAL INPUT TERMINALS AT THE ENDS THEREOF AND AN OUTPUT WIPER WHICH MAKES PROGRESSIVE CONTACT WITH SAID RESISTANCE-FORMING PORTION, ONE OF SAID SIGNAL INPUT TERMINALS BEING COUPLED TO ONE OF SAID MAIN SIGNAL INPUT TERMINALS, THE IMPROVEMENT COMPRISING MEANS FOR ADJUSTING THE ZERO OUTPUT POSITION OF SAID WIPER COMPRISING: PHASE INVERSION MEANS HAVING AN INPUT COUPLED ACROSS SAID MAIN SIGNAL INPUT TERMINALS AND AN OUTPUT AT WHICH A VOLTAGE APPEARS 180* OUT OF PHASE WITH THE INPUT VOLTAGE THERETO, MEANS FOR ADJUSTING THE AMPLITUDE OF THE VOLTAGE COUPLED TO THE INPUT OF SAID PHASE INVERSION MEANS, AND MEANS CONNECTING THE OUTPUT OF SAID PHASE INVERSION MEANS IN SERIES BETWEEN SAID OTHER POTENTIOMETER SIGNAL INPUT TERMINAL AND THE OTHER MAIN SIGNAL INPUT TERMINAL WHERE THE PHASE INVERTED VOLTAGE IN THE OUTPUT OF SAID PHASE INVERSION MEANS OPPOSES THE VOLTAGE COUPLED DIRECTLY THERETO FROM SAID MAIN SIGNAL INPUT TERMINALS.
Claim 2
Dependent Claim
182 words
IN COMBINATION WITH A PAIR OF MAIN SIGNAL INPUT TERMINALS ACROSS WHICH A SOURCE OF VOLTAGE WHOSE AMPLITUDE VARIES WITH TIME IS TO BE APPLIED, A POTENTIOMETER INCLUDING A RESISTANCE-FORMING PORTION HAVING A PAIR OF SIGNAL INPUT TERMINALS AT THE ENDS THEREOF AND AN OUTPUT WIPER WHICH MAKES PROGRESSIVE CONTACT WITH SAID RESISTANCE-FORMING PORTION, ONE OF SAID SIGNAL INPUT TERMINALS BEING COUPLED TO ONE OF SAID MAIN SIGNAL INPUT TERMINALS, THE IMPROVEMENT COMPRISING MEANS FOR ADJUSTING THE ZERO OUTPUT POSITION OF SAID WIPER COMPRISING: PHASE INVERSION MEANS HAVING AN INPUT COUPLED ACROSS SAID MAIN SIGNAL INPUT TERMINALS AND AN OUTPUT AT WHICH A VOLTAGE APPEARS 180* OUT OF PHASE WITH THE INPUT VOLTAGE THERETO, MEANS FOR ADJUSTING THE AMPLITUDE OF THE VOLTAGE COUPLED TO THE INPUT OF SAID PHASE INVERSION MEANS, AND MEANS CONNECTING THE OUTPUT OF SAID PHASE INVERSION MEANS IN SERIES BETWEEN SAID OTHER POTENTIOMETER SIGNAL INPUT TERMINAL AND THE OTHER MAIN SIGNAL INPUT TERMINAL WHERE THE PHASE INVERTED VOLTAGE IN THE OUTPUT OF SAID PHASE INVERSION MEANS OPPOSES THE VOLTAGE COUPLED DIRECTLY THERETO FROM SAID MAIN SIGNAL INPUT TERMINALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |