US3031269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of diamond growth and apparatus therefor
Assignee: General Electric Co
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Filing: 1959-11-27
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Granted: 1962-04-24
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Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Harold P Bovenkerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:34
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/065; B01J3/067; B01J3/062; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/061; B01J2203/0625; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/068; Y; Y10; Y10S; Y10S425/00; Y10S425/026; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1096
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
IN A METHOD OF PRODUCING DIAMOND CRYSTALS FROM A COMBINATION OF A NON-DIAMOND CARABON TOGETHER WITH A CATALYST WHICH INCLUDES SUBJECTING THE SAID NON-DIAMOND FORM OF CARBON AND THE CATALYST TO HIGH PRESSURES AND HIGH TEMPERATURES ABOVE THE GRAPHITE-TO-DIAMOND EQUILIBRIUM LINE ON THE PHASES DIAGRAM OF CARBON TO PROVIDE DIAMOND GROWTH FROM SAID NON-DIAMOND CARBON, THE IMPROVEMENT OF GROWING LARGER DIAMONDS COMPRISING, RAISING THE SAID PRESSURE AND TEMPERATURE TO THAT RANGE OF PRESSURES AND TEMPERATURES IN THE DIAMOND GROWING RAEGION FOR THE GIVEN CATALYST, ABOVE THE SAID GRAPHITE-TODIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON, AT A POINT CLOSELY ADJACENT THE SAID GRAPHITE TO DIAMOND EQUILIBRIM LINE AND ABOVE THE CUBE REGION WHEREIN DIAMONDS CRYSTALLIZE PREDOMINANTLY IN CUBE FORM, MAINTAINING THE TEMPERATURE CONSTANT OVER AN EXTENDED PERIOD OF TIME AT SAID POINT, REDUCING THE TEMPERATURE AND PRESSURE, AND RECOVERING DIAMOND SO GROWN.
Claim 2
Dependent Claim
143 words
IN A METHOD OF PRODUCING DIAMOND CRYSTALS FROM A COMBINATION OF A NON-DIAMOND CARABON TOGETHER WITH A CATALYST WHICH INCLUDES SUBJECTING THE SAID NON-DIAMOND FORM OF CARBON AND THE CATALYST TO HIGH PRESSURES AND HIGH TEMPERATURES ABOVE THE GRAPHITE-TO-DIAMOND EQUILIBRIUM LINE ON THE PHASES DIAGRAM OF CARBON TO PROVIDE DIAMOND GROWTH FROM SAID NON-DIAMOND CARBON, THE IMPROVEMENT OF GROWING LARGER DIAMONDS COMPRISING, RAISING THE SAID PRESSURE AND TEMPERATURE TO THAT RANGE OF PRESSURES AND TEMPERATURES IN THE DIAMOND GROWING RAEGION FOR THE GIVEN CATALYST, ABOVE THE SAID GRAPHITE-TODIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON, AT A POINT CLOSELY ADJACENT THE SAID GRAPHITE TO DIAMOND EQUILIBRIM LINE AND ABOVE THE CUBE REGION WHEREIN DIAMONDS CRYSTALLIZE PREDOMINANTLY IN CUBE FORM, MAINTAINING THE TEMPERATURE CONSTANT OVER AN EXTENDED PERIOD OF TIME AT SAID POINT, REDUCING THE TEMPERATURE AND PRESSURE, AND RECOVERING DIAMOND SO GROWN.
Claim 3
Dependent Claim
135 words
AN INDIRECTLY HEATED REACTION VESSEL COMPRISING IN COMBINAATION, A HOLLOW ELECTRICALLY NONCONDUCTIVE AND THERMALLY INSULATING VESSEL, A THIN ELECTRICALLY CONDUCTIVE HEATER TUBE POSITIONED WITHIN AND CONTIGUOUS WITH SAID VESSEL, A HOLLOW ELECTRICALLY NONCONDUCTIVE AND THERMALLY INSULATING CYLINDER POSITIONED CONCENTRICALLY WITHIN AND CONTIGUOUS WITH SAID HEATER TUBE, A METALLIC CYLINDER WHOSE LENGTH IS LESS THAN THAT OF SAID TUBE POSITIONED CONCENTRICALLY WITHIN SAID TUBE AND CONTIGUOPUD THEREWITH AND ADAPTED TO CONTAIN A REACTANT MATERIAL, AN ELECTRICALLY NONCONDUCTIVE AND THERMAL INSULATING PLUG POSITIONED WITHIN ONE END OF SAID REACTION VESSEL TO POVIDE A SUBSTANTIALLY SOLID REACTION VESSEL, AN ELECTRICALLY CONDUCTIVE DISC ON EACH END OF SAID HEATER TUBE AND IN CONTACT THEREWITH SO THAT AN ELECTRICAL CURRENT APPLIED TO SAID END DISCS FLOWS THROUGH SAID HEATER TUBE TO INDIRECTLY HEAT THE COMBINATION OF THE CATALYST AND REACTANT.
Claim 4
Dependent Claim
135 words
AN INDIRECTLY HEATED REACTION VESSEL COMPRISING IN COMBINAATION, A HOLLOW ELECTRICALLY NONCONDUCTIVE AND THERMALLY INSULATING VESSEL, A THIN ELECTRICALLY CONDUCTIVE HEATER TUBE POSITIONED WITHIN AND CONTIGUOUS WITH SAID VESSEL, A HOLLOW ELECTRICALLY NONCONDUCTIVE AND THERMALLY INSULATING CYLINDER POSITIONED CONCENTRICALLY WITHIN AND CONTIGUOUS WITH SAID HEATER TUBE, A METALLIC CYLINDER WHOSE LENGTH IS LESS THAN THAT OF SAID TUBE POSITIONED CONCENTRICALLY WITHIN SAID TUBE AND CONTIGUOPUD THEREWITH AND ADAPTED TO CONTAIN A REACTANT MATERIAL, AN ELECTRICALLY NONCONDUCTIVE AND THERMAL INSULATING PLUG POSITIONED WITHIN ONE END OF SAID REACTION VESSEL TO POVIDE A SUBSTANTIALLY SOLID REACTION VESSEL, AN ELECTRICALLY CONDUCTIVE DISC ON EACH END OF SAID HEATER TUBE AND IN CONTACT THEREWITH SO THAT AN ELECTRICAL CURRENT APPLIED TO SAID END DISCS FLOWS THROUGH SAID HEATER TUBE TO INDIRECTLY HEAT THE COMBINATION OF THE CATALYST AND REACTANT.
References Cited (Backward Citations)
US2941861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |