US3710166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-filled ionization counter
Assignee: MO Z ELEKTROVAKUUMNYKH PRIBORO
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Filing: 1970-01-15
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Granted: 1973-01-09
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Expires: 1990-01-15
Abstract
Abstract A gas-filled ionization counter in which the cathode and anode are placed in an envelope filled with a gaseous mixture and form the main gas-discharge gap and which has a performance check facility. The said facility compris electrodes placed in the gaseous mixture of the envelope and forming an auxiliary gap, and a radio-active source of specified activity, placed in the auxiliary gap so that its own radiation induces a gas discharge solely in the auxiliary gap. All this provided a check on the stability of the counter''s characteristics in service.
Inventors
- 👤 S Perelman
- 👤 E Petrenko
- 👤 I Prager
- 👤 A Timofeev
- 👤 A Tolmachev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:52
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A gas-filled ionization counter, comprising; an envelope filled with a gaseous mixture; a cathode being positioned in said envelope; an anode being positioned in said envelope, said cathode and anode jointly forming a main gas-discharge gap; and a performance-check facility having a radio-active source of specified activity being positioned in said envelope; the electrodes of said performance-check facility being located in the gaseous mixture of said envelope and forming an auxiliary gas-discharge gap; the radio-active source of said performancecheck facility extending into the auxiliary gap so that its own radiation induces a gas discharge solely in the auxiliary gap.
Claim 2
Dependent Claim
99 words
A gas-filled ionization counter, comprising; an envelope filled with a gaseous mixture; a cathode being positioned in said envelope; an anode being positioned in said envelope, said cathode and anode jointly forming a main gas-discharge gap; and a performance-check facility having a radio-active source of specified activity being positioned in said envelope; the electrodes of said performance-check facility being located in the gaseous mixture of said envelope and forming an auxiliary gas-discharge gap; the radio-active source of said performancecheck facility extending into the auxiliary gap so that its own radiation induces a gas discharge solely in the auxiliary gap.
Claim 3
Dependent Claim
57 words
A gas-filled ionization counter, as claimed in claim 1, in which said cathode and one of said electrodes in said performance-check facility have openings positioned relative to one another so that the radiation of the gas discharge induced in the auxiliary gap passes through said openings into the main gas-discharge gap and induce a gas discharge there.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |