Free flight head assembly for dot matrix printers and the like
US4165940A · kind A · utility
13Cited by
8References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1977 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Feb 28, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/275
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A print head assembly of the free flight, ballistic type comprising a wire guide subassembly and a solenoid drive assembly adapted to be precisely and adjustably interconnected by means of a novel flexible resilient parasol adapted to simultaneously adjust the spacing between the solenoid assembly armatures and the associated poles without effecting the magnitude of the biasing force imposed forces exerted on the armatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.