US3385988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-plate ionisation chamber with gamma-compensation and guard-ring electrodes
Assignee: English Electric Co Ltd
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Filing: 1964-08-10
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Granted: 1968-05-28
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Hyun Kyung Ho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:31
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/12; H01J47/1205; H01J47/1211; H01J47/1216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN AN IONISATION CHAMBER COMPRISING AN ENCLOSED VESSEL, A PLURALITY OF POLARISING PLATE ELECTRODES ARRANGED PARALLEL TO AND ALTERNATELY WITH A PLURALITY OF COLLECTOR PLATE ELECTRODES CONNECTED ELECTRICALLY TOGETHER, A NEUTRON-SENSITIVE COATING ON ONE OF EACH COLLECTOR PLATE ELECTRODES AN IONISABLE GAS IN SAID VESSEL, MEANS FOR CONNECTING THE POLARISING PLATE ELECTRODES TO A VOLTAGE SOURCE AND MEANS FOR COLLECTING FROM THE COLLECTOR PLATE ELECTRODES A CURRENT CAUSED TO FLOW THEREIN IN THE PRESENCE AND IN RESPONSE TO THE INTENSITY OF NUCLEAR RADIATION; A CO-PLANAR ELECTRICALLY-CONDUCTING PERIPHERAL PLATE MEMBER ENCIRCLING EACH COLLECTOR PLATE ELECTRODE AND INSULATING BETWEEN EACH SAID PERIPHERAL PLATE MEMBER AND THE CORRESPONDING COLLECTOR PLATE ELECTRODE.
Claim 2
Dependent Claim
108 words
IN AN IONISATION CHAMBER COMPRISING AN ENCLOSED VESSEL, A PLURALITY OF POLARISING PLATE ELECTRODES ARRANGED PARALLEL TO AND ALTERNATELY WITH A PLURALITY OF COLLECTOR PLATE ELECTRODES CONNECTED ELECTRICALLY TOGETHER, A NEUTRON-SENSITIVE COATING ON ONE OF EACH COLLECTOR PLATE ELECTRODES AN IONISABLE GAS IN SAID VESSEL, MEANS FOR CONNECTING THE POLARISING PLATE ELECTRODES TO A VOLTAGE SOURCE AND MEANS FOR COLLECTING FROM THE COLLECTOR PLATE ELECTRODES A CURRENT CAUSED TO FLOW THEREIN IN THE PRESENCE AND IN RESPONSE TO THE INTENSITY OF NUCLEAR RADIATION; A CO-PLANAR ELECTRICALLY-CONDUCTING PERIPHERAL PLATE MEMBER ENCIRCLING EACH COLLECTOR PLATE ELECTRODE AND INSULATING BETWEEN EACH SAID PERIPHERAL PLATE MEMBER AND THE CORRESPONDING COLLECTOR PLATE ELECTRODE.
References Cited (Backward Citations)
US2962614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |