Patent US3105031A successfully refreshed from Google Patents.
US3105031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas discharge apparatus
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1959-07-01
•
Granted: 1963-09-24
•
Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Thonemann Peter Clive
- 👤 Robson Anthony Emerson
- 👤 Hall Roger Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:16
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/48; G; G21; G21B; G21B1/00; G21B1/11; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A GAS DISCHARGE APPARATUS FOR PRODUCING A HIGH TEMPERATURE PLASMA HAVING AN INNER METALLIC WALL, THE IMPROVEMENT WHEREIN SAID WALL COMPRISES A PLURALITY OF CLOSELY-SPACED, THIN METALLIC PLATES DISPOSED SUBSTANTIALLY EDGE-ON TO THE PLASAM, THE EDGE DIMENSIONS AND SPACING OF THE PLATES BEING SUCH THAT THE EFFECTIVE AREA OF EACH PLATE EXPOSED TO THE PLASMA IS LESS THAN THAT REQUIRED TO MANTAIN A UNIPOLAR ARC UNDER THE PREDICTED OPERATING CONDITIONS, AND MEEANS FOR MOUNTING THE PLATES IN IMSULATED RELATIONSHIP TO ONE ANOTHER.
Claim 2
Dependent Claim
83 words
IN A GAS DISCHARGE APPARATUS FOR PRODUCING A HIGH TEMPERATURE PLASMA HAVING AN INNER METALLIC WALL, THE IMPROVEMENT WHEREIN SAID WALL COMPRISES A PLURALITY OF CLOSELY-SPACED, THIN METALLIC PLATES DISPOSED SUBSTANTIALLY EDGE-ON TO THE PLASAM, THE EDGE DIMENSIONS AND SPACING OF THE PLATES BEING SUCH THAT THE EFFECTIVE AREA OF EACH PLATE EXPOSED TO THE PLASMA IS LESS THAN THAT REQUIRED TO MANTAIN A UNIPOLAR ARC UNDER THE PREDICTED OPERATING CONDITIONS, AND MEEANS FOR MOUNTING THE PLATES IN IMSULATED RELATIONSHIP TO ONE ANOTHER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |