US3099793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonance seeking circuit
Assignee: Industrial Nucleonics Corp
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Filing: 1960-10-03
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Granted: 1963-07-30
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Clyde W Pinkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/44; G01R33/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN NUCLEAR MAGNETIC RESONANCE MEASRUING APPARTUS HAVING MEANS GENERATING A RADIO-FREQUENCY FIELD, MEANS GENERATING AN OTHERWISE STEADY MAGNETIC FIELD THAT IS AMPLITUDE MODULATED CYCLICALLY BY A SUPERIMPOSED MAGNETIC FIELD WHICH REVERSES FROM ONE MAGNETIC POLARITY TO THE OTHER BY PASSING THROUGH FIELD STRENGTH NULL POINTS SO THAT THE CONDITION FOR NUCLEAR RESONANCE IS PERIODICALLY ATTAINED FOR A SAMPLE MATERIAL UNDER TEST TO GENERATE THEREBY A PERIODIC RESONANCE ABSORPTION PULSE SIGNAL, AND AN ABSORPTION PULSE SIGNAL READOUT CIRCUIT THAT IS GATED BY MEANS GENERATING A PERIODIC GATE PULSE TRAIN WHOSE INDIVIDUAL PULSES COINCIDE TIMEWISE WITH THE FIELD-STRENGTH NULL POINTS OF EACH MODULATION CYCLE AND IN WHICH EACH GATE PULSE IS OF A TIME DURATION SEVERAL TIMES THAT OF EACH ABSORPTION PULSE SIGNAL, THE IMPROVEMENT COMPRISING MEANS DETERMINING THE TIME AT WHICH RESONANCE OCCURS BY COMPARING THE TIME RELATIONSHIP OF EACH RESONANCE ABSORPTION PULSE RELATIVE A GATE PULSE AND GENERATING AN
Claim 2
Dependent Claim
149 words
IN NUCLEAR MAGNETIC RESONANCE MEASRUING APPARTUS HAVING MEANS GENERATING A RADIO-FREQUENCY FIELD, MEANS GENERATING AN OTHERWISE STEADY MAGNETIC FIELD THAT IS AMPLITUDE MODULATED CYCLICALLY BY A SUPERIMPOSED MAGNETIC FIELD WHICH REVERSES FROM ONE MAGNETIC POLARITY TO THE OTHER BY PASSING THROUGH FIELD STRENGTH NULL POINTS SO THAT THE CONDITION FOR NUCLEAR RESONANCE IS PERIODICALLY ATTAINED FOR A SAMPLE MATERIAL UNDER TEST TO GENERATE THEREBY A PERIODIC RESONANCE ABSORPTION PULSE SIGNAL, AND AN ABSORPTION PULSE SIGNAL READOUT CIRCUIT THAT IS GATED BY MEANS GENERATING A PERIODIC GATE PULSE TRAIN WHOSE INDIVIDUAL PULSES COINCIDE TIMEWISE WITH THE FIELD-STRENGTH NULL POINTS OF EACH MODULATION CYCLE AND IN WHICH EACH GATE PULSE IS OF A TIME DURATION SEVERAL TIMES THAT OF EACH ABSORPTION PULSE SIGNAL, THE IMPROVEMENT COMPRISING MEANS DETERMINING THE TIME AT WHICH RESONANCE OCCURS BY COMPARING THE TIME RELATIONSHIP OF EACH RESONANCE ABSORPTION PULSE RELATIVE A GATE PULSE AND GENERATING AN
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |