Patent US3389981A successfully refreshed from Google Patents.
US3389981A
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Method of bonding diamond and metal
Assignee: HARRY L STRAUSS JR
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Filing: 1963-10-08
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Granted: 1968-06-25
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry L Strauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
C; C22; C22C; C22C26/00; B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; C22C2026/005; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE METHOD OF BONDING DIAMOND PIECES AND METAL WHICH INCLUDES EMBEDDING THE DIAMOND PIECES IN A METAL POWDER SELECTED FROM THE GROUP CONSISTING OF IRON, COPPER, TIN, NICKEL, COBALT, CHROMIUM BORIDE, AND TUNGSTEN CARBIDE AND COMPRESSING THE SAME TO FORM AN EMBRYO ABRASIVE PRODUCT HAVING SOME "GREEN STRENGTH," SUBJECTING THE PRODUCT TO DIRECT MECHANICAL PRESSURE AND TO HEAT AND TO ENVIRONMENTAL VACUUM IN THE PRESENCE OF A TITANIUM GETTER UNTIL THE TEMPERATURE HAS RISEN TO A RANGE OF 1800* TO 2400*F. AND THE TREATMENT HAS CONTINUED FOR ABOUT SIX TO TEN MINUTES, AND THEREUPON TERMINATING THE HEATING AND ABRUPTLY COOLING BY REFRIGERATIN WHILE MAINTAINING THE DIRECT MECHANICAL PRESSURE AND THE ENVIRONMENTAL VACUUM UNTIL THE PRODUCT IS COOLED TO APPROXIMATELY ROOM TEMPERATURE.
Claim 2
Independent Claim
121 words
THE METHOD OF BONDING DIAMOND PIECES AND METAL WHICH INCLUDES EMBEDDING THE DIAMOND PIECES IN A METAL POWDER SELECTED FROM THE GROUP CONSISTING OF IRON, COPPER, TIN, NICKEL, COBALT, CHROMIUM BORIDE, AND TUNGSTEN CARBIDE AND COMPRESSING THE SAME TO FORM AN EMBRYO ABRASIVE PRODUCT HAVING SOME "GREEN STRENGTH," SUBJECTING THE PRODUCT TO DIRECT MECHANICAL PRESSURE AND TO HEAT AND TO ENVIRONMENTAL VACUUM IN THE PRESENCE OF A TITANIUM GETTER UNTIL THE TEMPERATURE HAS RISEN TO A RANGE OF 1800* TO 2400*F. AND THE TREATMENT HAS CONTINUED FOR ABOUT SIX TO TEN MINUTES, AND THEREUPON TERMINATING THE HEATING AND ABRUPTLY COOLING BY REFRIGERATIN WHILE MAINTAINING THE DIRECT MECHANICAL PRESSURE AND THE ENVIRONMENTAL VACUUM UNTIL THE PRODUCT IS COOLED TO APPROXIMATELY ROOM TEMPERATURE.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |