Method of making an electroforming mandrel
US3950839A · kind A · utility
13Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Jul 12, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49865
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cylindrically shaped hollow mandrel is disclosed which is suitable in an electroforming process used for the production of an endless seamless nickel xerographic belt. The mandrel set forth comprises a metal core member with a thin removable metal sleeve having a thickness between about 10 and 60 mils which is fitted over said core member to provide a surface for electroforming of the nickel belt. Mandrels disclosed in the present invention have the advantage of a longer lifetime of use in a continuous electroforming process because of the replaceable nature of the metal sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.