Armored metal tools and production thereof
Abstract
Abstract Armored tools and production thereof comprising a structural base member composed of a base metal, having at least a surface portion embodying a tough, wear-resistant and abrasive, armoring coating produced in situ from abrasive particles of hard, high melting material selected from the group consisting of metal carbides, borides, nitrides, silicides and mixtures thereof, individually precoated with a fluxing agent and with particles of a lower melting brazing metal, said brazing metal particles precoated on said abrasive particles, respectively, being fusion bonded to each other to their respective abrasive particles and to said base metal thereat in weldments individual to said abrasive particles, and partially embedding and anchoring said abrasive particles therein, respectively, with said abrasive particles projecting beyond said embedding matrix metal weldments to form a multiplicity of sharp cutting edges.
Inventors
- 👤 C Dawson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |