Printer hammer tip and method for making
US6437280B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J9/133
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming a printer tip on a metal printer hammer spring by providing a printer tip from a range of materials from the group consisting of sintered tungsten carbide, cemented tungsten carbide, composite ceramics, metallic materials, noble metals, metal carbides, borides, nitrides and alloys and mixtures thereof. The printer tip is pressed against the hammerspring while electrically softening the printer hammerspring through a voltage established by an electrode contacting the printer tip. A plating or coating of the printer tip beforehand can be undertaken with a conductive metallic material disposed on the surface of the printer tip. The printer tip is fused to the hammerspring and a milling of a desired form to the printer tip and hammerspring by an electrode discharge milling process can take place thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.