Dot matrix print head
US4548521A · kind A · utility
5Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Dec 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/275
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dot matrix print head has a unitary member in the manner of a ring with a plurality of integral projections formed to position the armatures of print wire actuators, and ring portions to space the forward and rearward assembly of parts of the print head. An annular resilient member provides means for retaining the print wire actuators in one position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.