Method of manufacture of a multi-wire nonimpact printhead
US4397085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1980 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Dec 5, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49162
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production. A plurality of slats are molded, one alongside another on a cylindrical support shell, parallel to the shell axis. A helical thread is engraved on the slats along the axial length of the support shell. A continuous wire is wrapped in the thread and the portions of the wire on the slats are encapsulated. The support shell and wrapped wire is cut between adjacent slats to obtain a plurality of printhead blanks. Each blank is machined to smooth the exposed print wires. The resultant printheads may be used in page- width nonimpact printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.