US3101260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond tool
Assignee: General Electric Co
•
Filing: 1957-08-09
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Granted: 1963-08-20
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 James E Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:52
CPC Classifications
B; B24; B24D; B24D18/00; B01; B01J; B01J3/00; B01J3/06; B01J3/065; B23; B23P; B23P5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
THE METHOD OF PRODUCING DIAMOND TOOLS WHICH COMPRISES, PLACING A QUANTITY OF GRAPHITE CENTRALLY IN THE BORE OF AN ELECTRICAL AND THERMAL INSULATING HIGH PRESSURE TRANSMITTING MATERIAL CYLINDER, INSERTING A CATALYST METAL PLUG IN SAID BORE ON EACH SIDE OF AND ADJACENT THE SAID CENTRALLY LOCATED GRAPHITE WITH THE SIDE SURFACE THEREOF CONTRACTING THE BORE OF SAID CYLINDER, SUBJECTING SAID PLUG, GRAPHITE, AND CYLINDER TO HIGH PRESSURE IN THE APPROXIMATE RANGE OF 50,000-110,000 ATMOSPHERES AND HIGH TEMPERATURES IN THE RANGE OF 1200-3000*C., MAINTAINING SAID PRESSURES AND TEMPERATURES FOR PERIOD OF TWO TO THREE MINUTES TO CAUSE DIAMOND CRYSTAL FORMATION ONLY ON THE PORTION OF SAID PLUGS ADJACENT SAID GRAPHITE WHILE MAINTAINING THE REMAINING PORTIONS OF SAID PLUG FREE FROM DIAMOND GROWTH THEREON, REDUCING THE TEMPERATURE AND PRESSURE, REMOVING SAID PLUGS WITH THE DIAMOND FORMATION THEREON FROM SAID CYLINDER, SHAPING SAID DIAMOND FORMATION TO A CUTTING CONFIGURATION, AND MOUNTING SAID PLUGS IN TOOL HOLDERS BY MEANS OF PORTION OF SAID PLUG MAINTAINED FREE OF DIAMOND GROWTH.
Claim 2
Independent Claim
165 words
THE METHOD OF PRODUCING DIAMOND TOOLS WHICH COMPRISES, PLACING A QUANTITY OF GRAPHITE CENTRALLY IN THE BORE OF AN ELECTRICAL AND THERMAL INSULATING HIGH PRESSURE TRANSMITTING MATERIAL CYLINDER, INSERTING A CATALYST METAL PLUG IN SAID BORE ON EACH SIDE OF AND ADJACENT THE SAID CENTRALLY LOCATED GRAPHITE WITH THE SIDE SURFACE THEREOF CONTRACTING THE BORE OF SAID CYLINDER, SUBJECTING SAID PLUG, GRAPHITE, AND CYLINDER TO HIGH PRESSURE IN THE APPROXIMATE RANGE OF 50,000-110,000 ATMOSPHERES AND HIGH TEMPERATURES IN THE RANGE OF 1200-3000*C., MAINTAINING SAID PRESSURES AND TEMPERATURES FOR PERIOD OF TWO TO THREE MINUTES TO CAUSE DIAMOND CRYSTAL FORMATION ONLY ON THE PORTION OF SAID PLUGS ADJACENT SAID GRAPHITE WHILE MAINTAINING THE REMAINING PORTIONS OF SAID PLUG FREE FROM DIAMOND GROWTH THEREON, REDUCING THE TEMPERATURE AND PRESSURE, REMOVING SAID PLUGS WITH THE DIAMOND FORMATION THEREON FROM SAID CYLINDER, SHAPING SAID DIAMOND FORMATION TO A CUTTING CONFIGURATION, AND MOUNTING SAID PLUGS IN TOOL HOLDERS BY MEANS OF PORTION OF SAID PLUG MAINTAINED FREE OF DIAMOND GROWTH.
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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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |