Needle-carrying head for a printing machine
US4572070A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Jun 18, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/275
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A needle-carrying head for a printing machine has needles which are short and rectilinear, the distance separating them being greater than the distance which must separate the printed points produced in the printing operation. Hence, the needles do not have to be bent to enable electro-magnets which drive them to act thereon. The needle-carrying head is mounted in the printing machine in such a way that the plane of the needles is inclined with respect to the writing direction, which compensates for the effect of the distance separating the needles and permits, by appropriate choice of the said inclination, an overlapping of the printed points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.