US3090002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetometer apparatus
Assignee: Varian Medical Systems Inc
•
Filing: 1958-01-10
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Granted: 1963-05-14
•
Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Theodore L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:43
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN AN ATOMIC FREE PRECESSION MAGNETOMETER OF THE CLASS WHEREIN ATOM PORTIONS IN A SAMPLE OF MATTER ARE FIRST POLARIZED BY A STRONG MAGNETIC FIELD AND THEN PRECESS IN THE MAGNETIC FIELD TO BE MEASURED AND INDUCE A FIELD DEPENDENT SIGNAL IN A SUITABLE RECEIVER SYSTEM, THE COMBINATION WITH SAID MAGNETOMETER OF A TUNING CIRCUIT SAID RECEIVER SYSTEM, AND OPEN LOOP CONTROL MEANS FOR AUTOMATICALLY OPERATING SAID TUNING CIRCUIT IN RESPONSE TO THE FIELD DEPENDENT SIGNAL TO AUTOMATICALLY TUNE SAID MAGNETOMETER RECEIVER SYSTEM TO SAID PRECESSION FREQUENCY.
Claim 2
Dependent Claim
87 words
IN AN ATOMIC FREE PRECESSION MAGNETOMETER OF THE CLASS WHEREIN ATOM PORTIONS IN A SAMPLE OF MATTER ARE FIRST POLARIZED BY A STRONG MAGNETIC FIELD AND THEN PRECESS IN THE MAGNETIC FIELD TO BE MEASURED AND INDUCE A FIELD DEPENDENT SIGNAL IN A SUITABLE RECEIVER SYSTEM, THE COMBINATION WITH SAID MAGNETOMETER OF A TUNING CIRCUIT SAID RECEIVER SYSTEM, AND OPEN LOOP CONTROL MEANS FOR AUTOMATICALLY OPERATING SAID TUNING CIRCUIT IN RESPONSE TO THE FIELD DEPENDENT SIGNAL TO AUTOMATICALLY TUNE SAID MAGNETOMETER RECEIVER SYSTEM TO SAID PRECESSION FREQUENCY.
References Cited (Backward Citations)
USRE23769E
Cited
US2462630A
Cited
US2589494A
Cited
US2743419A
Cited
US2845595A
Cited
US2863116A
Cited
US2772391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |