Patent US4783100A successfully refreshed from Google Patents.
Patent US3226547A successfully refreshed from Google Patents.
US3226547A
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Thermal neutron flux measuring device using two boron thermistors
Assignee: Lockheed Martin Corp
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Filing: 1962-07-10
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Granted: 1965-12-28
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Expires: 1982-07-10
Abstract
No abstract record available.
Inventors
- 👤 Justin L Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:04
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/10; G21C17/108; G01; G01T; G01T3/00; G01T3/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A THERMAL NEUTRON FLUX MEASURING DEVICE COMPRISING: (A) A PAIR OF BORON THERMISTORS, THE FIRST OF SAID THERMISTORS BEING COMPOSED OF A SUBSTANTIALLY GREATER PROPORTION OF THE ISOTOPE B10 THAN THE SECOND OF SAID THERMISTORS, THEREBY HAVING A GREATER CAPABILITY FOR ABSORBING THERMAL NEUTRONS THAN SAID SECOND THERMISTOR; AND (B) MEANS FOR DETERMINING THE DIFFERENCE BETWEEN THE ELECTRICAL RESISTANCES OF SAID PAIR OF BORON THERMISTORS, SAID DIFFERENCE BEING A MEASURE OF THE THERMAL NEUTRON FLUX TO WHICH SAID PAIR OF THERMISTORS IS EXPOSED.
Claim 2
Dependent Claim
83 words
A THERMAL NEUTRON FLUX MEASURING DEVICE COMPRISING: (A) A PAIR OF BORON THERMISTORS, THE FIRST OF SAID THERMISTORS BEING COMPOSED OF A SUBSTANTIALLY GREATER PROPORTION OF THE ISOTOPE B10 THAN THE SECOND OF SAID THERMISTORS, THEREBY HAVING A GREATER CAPABILITY FOR ABSORBING THERMAL NEUTRONS THAN SAID SECOND THERMISTOR; AND (B) MEANS FOR DETERMINING THE DIFFERENCE BETWEEN THE ELECTRICAL RESISTANCES OF SAID PAIR OF BORON THERMISTORS, SAID DIFFERENCE BEING A MEASURE OF THE THERMAL NEUTRON FLUX TO WHICH SAID PAIR OF THERMISTORS IS EXPOSED.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |