US3159747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fail proof radiation monitor and alarm circuit
Assignee: Nuclear Materials and Equipment Corp
•
Filing: 1960-01-12
•
Granted: 1964-12-01
•
Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jones Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:02
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
FAIL-PROOF RADIATION DETECTION APPARATUS INCLUDING MEANS RESPONSIVE TO RADIATION TO BE DETECTED FOR PRODUCING CURRENT ON THE INCIDENCE OF RADIATION THEREON, A CAPACITOR, MEANS CONNECTING SAID CURRENT-PRODUCING MEANS AND SAID CAPACITOR IN AN ELECTRICAL INTEGRATING CIRCUIT TO INTEGRATE SAID CURRENT, A GASEOUS DISCHARGE DEVICE IN WHICH A LUMINESCENT DISCHARGE IS PRODUCED WHEN A POTENTIAL EXCEEDING A PREDETERMINED FIRING POTENTIAL IS IMPRESSED THEREON, MEANS CONNECTING SAID CAPACITOR TO SAID DEVICE TO IMPRESS THE POTENTIAL OF SAID CAPACITOR ON SAID DEVICE, LIGHT SENSITIVE MEANS ONLY IN LIGHT RECEIVING RELATIONSHIP WITH SAID DEVICE BUT ELECTRICALLY INSULATED THEREFROM, AND SIGNALLING MEANS CONNECTED TO SAID SENSITIVE MEANS IN A RELATIVELY LOW IMPEDANCE CIRCUIT IN WHICH THE IMPEDANCES ARE OF THE ORDER OF THOUSANDS OF OHMS RATHER THAN MILLIONS OF OHMS TO PRODUCE A SIGNAL WHEN SAID DEVICE BECOMES LUMINESCENT.
Claim 2
Dependent Claim
134 words
FAIL-PROOF RADIATION DETECTION APPARATUS INCLUDING MEANS RESPONSIVE TO RADIATION TO BE DETECTED FOR PRODUCING CURRENT ON THE INCIDENCE OF RADIATION THEREON, A CAPACITOR, MEANS CONNECTING SAID CURRENT-PRODUCING MEANS AND SAID CAPACITOR IN AN ELECTRICAL INTEGRATING CIRCUIT TO INTEGRATE SAID CURRENT, A GASEOUS DISCHARGE DEVICE IN WHICH A LUMINESCENT DISCHARGE IS PRODUCED WHEN A POTENTIAL EXCEEDING A PREDETERMINED FIRING POTENTIAL IS IMPRESSED THEREON, MEANS CONNECTING SAID CAPACITOR TO SAID DEVICE TO IMPRESS THE POTENTIAL OF SAID CAPACITOR ON SAID DEVICE, LIGHT SENSITIVE MEANS ONLY IN LIGHT RECEIVING RELATIONSHIP WITH SAID DEVICE BUT ELECTRICALLY INSULATED THEREFROM, AND SIGNALLING MEANS CONNECTED TO SAID SENSITIVE MEANS IN A RELATIVELY LOW IMPEDANCE CIRCUIT IN WHICH THE IMPEDANCES ARE OF THE ORDER OF THOUSANDS OF OHMS RATHER THAN MILLIONS OF OHMS TO PRODUCE A SIGNAL WHEN SAID DEVICE BECOMES LUMINESCENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |