US3104320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for gas analysis
Assignee: Pye Electronic Products Ltd
•
Filing: 1959-07-27
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Granted: 1963-09-17
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Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Speakman Frank Peter
- 👤 Williams Laurence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:50
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/64; G01N27/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN IONISATION CHAMBER FOR GAS ANALYSIS COMPRISING A HOLLOW BODY DEFINING A CAVITY, AN ELECTRIC TERMINAL CONNECTOR MOUNTED IN ONE END OF SAID CHAMBER, AN ELECTRODE CONNECTED TO SAID TERMINAL CONNECTOR, AND COMPRISING A CYLINDRICAL STUB WITH A ROUNDED TERMINATION, SAID ELECTRODE DEPENDING INTO SAID CAVITY BUT SPACED FROM THE WALLS THEREOF, A GAS INLET AT THE OTHER END OF SAID CHAMBER TO FACE SAID ROUNDED TERMINATION, FLANGE MEANS AT THE TWO ENDS OF SAID CAVITY FOR HOLDING A RADIOACTIVE SOURCE OF RADIATION OF SHEET FORM AGAINST THE WALLS OF SAID CAVITY, A RADIATION-PASSING LINER SPACED INWARDLY FROM THE WALLS OF SAID CAVITY, AND A GAS OUTLET SPACED FROM SAID GAS INLET BY THE SAID CAVITY.
Claim 2
Dependent Claim
116 words
AN IONISATION CHAMBER FOR GAS ANALYSIS COMPRISING A HOLLOW BODY DEFINING A CAVITY, AN ELECTRIC TERMINAL CONNECTOR MOUNTED IN ONE END OF SAID CHAMBER, AN ELECTRODE CONNECTED TO SAID TERMINAL CONNECTOR, AND COMPRISING A CYLINDRICAL STUB WITH A ROUNDED TERMINATION, SAID ELECTRODE DEPENDING INTO SAID CAVITY BUT SPACED FROM THE WALLS THEREOF, A GAS INLET AT THE OTHER END OF SAID CHAMBER TO FACE SAID ROUNDED TERMINATION, FLANGE MEANS AT THE TWO ENDS OF SAID CAVITY FOR HOLDING A RADIOACTIVE SOURCE OF RADIATION OF SHEET FORM AGAINST THE WALLS OF SAID CAVITY, A RADIATION-PASSING LINER SPACED INWARDLY FROM THE WALLS OF SAID CAVITY, AND A GAS OUTLET SPACED FROM SAID GAS INLET BY THE SAID CAVITY.
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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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |