Method of drill bit manufacture and product
US4454205A · kind A · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1981 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Oct 9, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12576
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making a drill bit and product resulting therefrom in which carbide elements are coated with carbide and nitride materials such as those of titanium as by chemical vapor deposition after which the elements are cast in molten steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.