Replaceable composite wire guide assembly
US3991870A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jun 6, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/255
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The print head in a high-speed printer of the dot matrix type is provided with a bearing comprising an element fixedly attached to the front wall of a plastic block. The element is made of a material substantially harder than plastic, such as metal or a jewel. Guide passages extending through the element are aligned with similar guide passages in the plastic block and are axially directed towards a paper document. The forward end of the print head is provided with slots for receiving the plastic block which may be releaseably secured into position by means of a substantially U-shaped compliant brad, greatly simplifying both assembly and disassembly thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.