Printing mechanism for an impact matrix printer
US4674896A · kind A · utility
19Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Jun 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing mechanism has a cantilevered leaf spring of magnetic material and an electromagnet. A cantilevered first thin plate of magnetic material is disposed between the leaf spring and a core of the electromagnet. A second thin plate of nonmagnetic material is secured to the first thin plate adjacent to the leaf spring. A permanent magnet is provided to attract the leaf spring and the first thin plate to the core and to attract the first thin plate by residual magnetism upon energization of the electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.