Apparatus for removing a marking from a surface
US5282919A · kind A · utility
2Cited by
22References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1990 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1983
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for removing a marking from a stratum surface comprises a pellucid film in the form of a heat softenable polymeric material to be placed over a marking and a source of light energy for irradiating the marking and film to heat the marking and soften the polymeric material to thereby transfer the marking to the film. The apparatus in the form of a pen type implement provides means for energizing the light source and thereafter moving the pellucid film in single operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.