Recorder with a pencil pen and method therefor
US4905016A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Aug 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A recorder with a pencil pen which contains a plurality of pencil leads therein comprises means for causing a lead chuck mechanism of the pencil lead to hold and release the pencil lead and means for vertically moving a pencil lead displacement mechanism of the pencil pen. Those means are alternately activated by lead feed/eject means to eject a consumed unnecessary pencil lead and drive out a new pencil lead and hold it at a recording position. Since the pencil leads can be automatically ejected and driven out, a recording efficiency is improved and long period continuous recording is attained with a single pencil pen. A lead feed/eject holder is provided to eject a residual lead of the pencil pen, and a processing unit for processing the ejected residual lead is provided. Thus, the recording efficiency is further improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.