Pen tip cleaning assembly of plotter
US4621428A · kind A · utility
4Cited by
7References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pen tip cleaning assembly of a plotter for performing drawing with a drawing needle pen held by a pen carriage, is provided wherein a two-dimensional pad of an elastic material is disposed in a drawing surface so as to allow insertion of a pen tip of the drawing needle pen, and the pen tip is moved relative to the two-dimensional pad, whereby the pen tip is cleaned every time the pen tip is inserted in a clean portion of the two-dimensional pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.