US3141989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workpiece support for glow discharge apparatus
Assignee: General Electric Co
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Filing: 1962-11-26
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Granted: 1964-07-21
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Expires: 1982-11-26
Abstract
No abstract record available.
Inventors
- 👤 Claude K Jones
- 👤 Stuart W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:38
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; C; C23; C23C; C23C8/00; C23C8/06; C23C8/36; H01J37/02; H01J37/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A GLOW DISCHARGE APPARATUS HAVING A HOUSING INCLUDING A BASE MEMBER TO BE MAINTAINED AT A FIRST ELECTRICAL POTENTIAL AND ADAPTED TO CONTAIN A HEAVY WORK PIECE TO BE MAINTAINED THEREIN AT A SECOND ELECTRICAL POTENTIAL, SO AS TO BE SUBJECTED TO A GLOW DISCHARGE, THE COMBINATION OF: AT LEAST ONE CONDUCTIVE SUPPORT COLUMN DISPOSED ENTIRELY WITHIN SAID HOUSING AND EXTENDING FROM SAID BASE TO SAID WORK PIECE, FIRST AND SECOND LOAD-BEARING INSULATING MEMBERS DISPOSED ABOVE AND BELOW SAID COLUMN AND SPACING IT FROM THE WORK PIECE AND BASE RESPECTIVELY TO DEFINE FIRST AND SECOND PROTECTIVE GAPS SURROUNDING THE INSULATING MEMBERS, THE GAPS BEING OF A SIZE TO PREVENT THE GLOW FROM PENETRATING TO THE INSULATING MEMBERS.
Claim 2
Dependent Claim
118 words
IN A GLOW DISCHARGE APPARATUS HAVING A HOUSING INCLUDING A BASE MEMBER TO BE MAINTAINED AT A FIRST ELECTRICAL POTENTIAL AND ADAPTED TO CONTAIN A HEAVY WORK PIECE TO BE MAINTAINED THEREIN AT A SECOND ELECTRICAL POTENTIAL, SO AS TO BE SUBJECTED TO A GLOW DISCHARGE, THE COMBINATION OF: AT LEAST ONE CONDUCTIVE SUPPORT COLUMN DISPOSED ENTIRELY WITHIN SAID HOUSING AND EXTENDING FROM SAID BASE TO SAID WORK PIECE, FIRST AND SECOND LOAD-BEARING INSULATING MEMBERS DISPOSED ABOVE AND BELOW SAID COLUMN AND SPACING IT FROM THE WORK PIECE AND BASE RESPECTIVELY TO DEFINE FIRST AND SECOND PROTECTIVE GAPS SURROUNDING THE INSULATING MEMBERS, THE GAPS BEING OF A SIZE TO PREVENT THE GLOW FROM PENETRATING TO THE INSULATING MEMBERS.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |