Patent US2075325A successfully refreshed from Google Patents.
US3167665A
Expired / Lapsed
US
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Magnetic anomaly simulator
Assignee: Individual
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Filing: 1961-03-20
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Granted: 1965-01-26
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Ensley A Godby
- 👤 Ralph C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:31
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01V; G01V13/00; G06; G06G; G06G7/00; G06G7/48; G06G7/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
A MAGNETIC ANOMALY SIMULATOR FOR USE IN A MAGNETIC DETECTOR SYSTEM HAVING A MAGNETOMETER DETECTOR ELEMENT, SAID SIMULATOR COMPRISING A SOURCE OF DIRECT CURRENT VOLTAGE, A VOLTAGE DIVIDER HAVING A PLURALITY OF CONNECTIONS ADAPTED TO BE CONNECTED ACROSS SAID SOURCE OF DIRECT CURRENT VOLTAGE, POTENTIAL DIFFERENCE VARYING MEANS CONNECTED IN SERIES BETWEEN SAID SOURCE OF DIRECT CURRENT VOLTAGE AND SAID VOLTAGE DIVIDER; A ROTARY POTENTIOMETER HAVING A CONTINUOUS RESISTANCE ELEMENT, A PLURALITY OF TAPS AND A WIPER ADAPTED TO CONTACT THE CONTINUOUS RESISTANCE ELEMENT; VARIABLE RATIO TRANSMISSION MEANS IN DRIVING CONNECTION WITH THE WIPER OF SAID POTENTIOMETER, MOTOR MEANS DRIVING SAID VARIABLE TRANSMISSION SO THAT SAID WIPER CAN BE ROTATED AT VARIABLE SPEEDS, MEANS ADAPTED TO CONNECT SAID TAPS OF SAID ROTARY POTENTIOMETER TO CONNECTIONS OF SAID VOLTAGE DIVIDER, AND CONNECTIONS FROM SAID ROTARY POTENTIOMETER FOR SUPPLYING THE OUTPUT VOLTAGE FROM SAID
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |