Cathode mask knob
US4309265A · kind A · utility
4Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1981 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jan 15, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D17/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cathode mask knob is disclosed which has a metal insert for holding a matrix in mechanical and electrical contact with the end of the cathode of an electroforming apparatus. The knob further has a resiliant seal around the insert and an outer shield of a dielectric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.