Multi-element writing instrument
US4274102A · kind A · utility
10Cited by
7References
26Claims
0Family size
Inventor
Key dates
| Filing date | Mar 2, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Mar 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-element writing instrument is disclosed for use in computer-operated plotters or similar graphics systems. Successive applications of a linear force applied along the axis of the instrument are converted to rotary motion which is employed to select successive elongate writing elements normally positioned at a uniform radial spacing from the axis of the writing instrument. Each selected element is displaced in a substantially axial direction a distance sufficient to extend the writing point of the element through the exit opening of the instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.