Marking apparatus with matrix defining locus of movement
US4808018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Jun 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44B5/026
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for forming multi-character messages on the surface of solid materials which employs an array of marker pins moved by a carriage in a manner defining an undulating locus of movement. This locus traces the matrix with which character fonts are defined by pixels formed by the marker pins as discrete indentations. The carriage and head containing the marker pin are pivotally driven by a cam to provide vertical movement and by a Geneva mechanism to provide horizontal movement. Pixel positions for the matrices are established by a timing disk and control over the pins is provided employing an interrupt approach. Each marking pin within the head assembly is capable of marking more than one complete character for a given transverse of the head between home and away limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.