Variable marking apparatus
US4794857A · kind A · utility
13Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41K1/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A marking device has a wheel to be rolled along a work piece to be marked into increments, and felt-tip markers distributed along the circumference of the wheel. The rim of the wheel carries one group of holders spaced at 90.degree. apart, and another group of holders spaced at 120.degree. apart. Each holder can receive a marker or not, so the spacings to be marked are variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.