Wire printer with step formation armature and method of assembly
US4995743A · kind A · utility
1Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4902
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Each needle of the printer has an associated electromagnet with a generally elongate movable armature having a first end and a second end which can selectively push the needle during printing as a result of a pivoting movement within a step formation facing the electromagnet. The step formation divides the armature into first and second portions facing the first and second ends respectively, and faces the respective electromagnet in such a position that the second portion of the armature at least partially faces the electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.