US2979451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas sampling apparatus
Assignee: Aei-John Thompson Nuclear Energy Co Ltd
•
Filing: 1957-09-25
•
Granted: 1961-04-11
•
Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Pettinger Donald Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:50
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/02; G21C17/028; F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/072; F16K11/074; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/26; G21C17/04; G21C17/042; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A NUCLEAR REACTOR HAVING A PLURALITY OF GAS CHANNELS, A GAS TIGHT SELECTOR VALVE COMPRISING A VALVE BODY AND A SELECTOR MEMBER ROTATABLE RELATIVELY TO THE VALVE BODY, CO-ENGAGING ANNULAR FACES ON THE VALVE BODY AND SELECTOR MEMBER RESPECTIVELY, WHICH FACES ENGAGE TOGETHER SLIDABLY WITH A SUBSTANTIALLY GAS TIGHT FIT, A PLURALITY OF INLET GAS DUCTS, PORTS TERMINATING SAID DUCTS AND UNIFORMLY SPACED ABOUT A PLURALITY OF CONCENTRIC PITCH CIRCLES ON THE ANNULAR VALVE FACE, A PLURALITY OF SCAVENGING PORTS ON THE SELECTOR MEMBER FACE LOCATED ABOUT THE SAME PITCH CIRCLES RESPECTIVELY AS THE INLET PORTS, A PLURALITY OF SAMPLING PORTS ON THE SELECTOR MEMBER FACE ALSO LOCATED ABOUT THE SAME PITCH CIRCLES RESPECTIVELY AS THE INLET PORTS AND DISPLACED CIRCUMFERENTIALLY FROM THE SCAV-
Claim 2
Dependent Claim
125 words
IN A NUCLEAR REACTOR HAVING A PLURALITY OF GAS CHANNELS, A GAS TIGHT SELECTOR VALVE COMPRISING A VALVE BODY AND A SELECTOR MEMBER ROTATABLE RELATIVELY TO THE VALVE BODY, CO-ENGAGING ANNULAR FACES ON THE VALVE BODY AND SELECTOR MEMBER RESPECTIVELY, WHICH FACES ENGAGE TOGETHER SLIDABLY WITH A SUBSTANTIALLY GAS TIGHT FIT, A PLURALITY OF INLET GAS DUCTS, PORTS TERMINATING SAID DUCTS AND UNIFORMLY SPACED ABOUT A PLURALITY OF CONCENTRIC PITCH CIRCLES ON THE ANNULAR VALVE FACE, A PLURALITY OF SCAVENGING PORTS ON THE SELECTOR MEMBER FACE LOCATED ABOUT THE SAME PITCH CIRCLES RESPECTIVELY AS THE INLET PORTS, A PLURALITY OF SAMPLING PORTS ON THE SELECTOR MEMBER FACE ALSO LOCATED ABOUT THE SAME PITCH CIRCLES RESPECTIVELY AS THE INLET PORTS AND DISPLACED CIRCUMFERENTIALLY FROM THE SCAV-
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |