US3080507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stabilizing magnetic fields
Assignee: Gulf Research and Development Co
•
Filing: 1961-06-08
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Granted: 1963-03-05
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Expires: 1981-06-08
Abstract
No abstract record available.
Inventors
- 👤 Warren E Wickerham
- 👤 Ralph D Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:10
CPC Classifications
G; G05; G05F; G05F7/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A CONTROL SYSTEM FOR MAINTAINING CONSTANT THE FIELD OF AN ELECTROMAGNET ENERGIZED BY A SOURCE OF MAGNETIZING CURRENT COMPRISING A CURRENT CONTROLLER CONNECTED TO THE SOURCE OF MAGNETIZING CURRENT AND TO THE ELECTROMAGNET, A MAGNETIC DETECTOR LOCATED IN THE FIELD OF THE ELECTROMAGNET, A COIL WOUND AROUND SAID MAGNETIC DETECTOR, A SELF-REGULATING COMPENSATING-CURRENT SUPPLY MEANS SUPPLYING A SUBSTANTIALLY CONSTANT ELECTRIC CURRENT TO SAID COIL IN SUCH DIRECTION AS TO PRODUCE A MAGNETIC FIELD IN OPPOSITION TO THE FIELD OF THE ELECTROMAGNET AT SAID MAGNETIC DETECTOR, SIGNAL-DETECTING MEANS CONNECTED TO SAID MAGNETIC DETECTOR, AND REGULATING MEANS CONNECTED TO SAID SIGNALDETECTING MEANS AND TO SAID CURRENT CONTROLLER REGULATING SAID CURRENT CONTROLLER SO AS TO MAINTAIN A MINIMUM SIGNAL OUTPUT FROM SAID MAGNETIC DETECTOR.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |