US3297948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Satellite spin measurement
Assignee: Individual
•
Filing: 1963-06-03
•
Granted: 1967-01-10
•
Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Hans W Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; B; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/32; B64G1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A SYSTEM FOR MEASURING THE RATE OF ROTATION OF A BODY ADAPTED TO ROTATE WHILE IN FREE FLIGHT WITHIN THE EARTH''S MAGNETIC FIELD, SAID SYSTEM COMPRISING: (A) SAID BODY, (B) AN EXPLORING COIL ENCOMPASSING A FIXED AREA MOUNTED WITHIN SAID BODY, THE ORIENTATION OF SAID COIL RELATIVE TO THE AXIS OF ROTATION OF SAID BODY BEING SUCH THAT THE AMOUNT OF THE EARTH''S MAGNETIC FIELD IN SAID FIXED AREA VARIES AS SAID BODY ROTATES, THEREBY GENERATING AN ALTERNATING-CURRENT SIGNAL IN SAID COIL, (C) SENSING MEANS TO SENSE THE SIGNAL GENERATED IN SAID EXPLORING COIL, (D) TIMING MARKER MEAN CONNECTED TO SAID SENSING MEANS TO DEVELOP A TIMING MARKER SIGNAL EACH TIME SAID ALTERNATING CURRENT SIGNAL PASSES THROUGH ZERO, AND (E) MEASURING MEANS CONNECTED TO SAID TIMING MARKER MEANS TO MEASURE THE INTERVAL BETWEEN SAID TIMING MARKER SIGNALS.
Claim 2
Independent Claim
137 words
A SYSTEM FOR MEASURING THE RATE OF ROTATION OF A BODY ADAPTED TO ROTATE WHILE IN FREE FLIGHT WITHIN THE EARTH''S MAGNETIC FIELD, SAID SYSTEM COMPRISING: (A) SAID BODY, (B) AN EXPLORING COIL ENCOMPASSING A FIXED AREA MOUNTED WITHIN SAID BODY, THE ORIENTATION OF SAID COIL RELATIVE TO THE AXIS OF ROTATION OF SAID BODY BEING SUCH THAT THE AMOUNT OF THE EARTH''S MAGNETIC FIELD IN SAID FIXED AREA VARIES AS SAID BODY ROTATES, THEREBY GENERATING AN ALTERNATING-CURRENT SIGNAL IN SAID COIL, (C) SENSING MEANS TO SENSE THE SIGNAL GENERATED IN SAID EXPLORING COIL, (D) TIMING MARKER MEAN CONNECTED TO SAID SENSING MEANS TO DEVELOP A TIMING MARKER SIGNAL EACH TIME SAID ALTERNATING CURRENT SIGNAL PASSES THROUGH ZERO, AND (E) MEASURING MEANS CONNECTED TO SAID TIMING MARKER MEANS TO MEASURE THE INTERVAL BETWEEN SAID TIMING MARKER SIGNALS.
References Cited (Backward Citations)
US2514349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |