Medallion-like articles, lamp lenses and method for their manufacture
US4139654A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Aug 23, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44F1/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Medallion-like articles for jewelry, decorative ornamentation and product identification, instrument panel light lenses and methods and apparatus for manufacturing same are disclosed. A medallion-like article for decoration or identification is formed by applying an uncured radiation curable polymer to an indicia bearing surface in a quantity sufficient to form a convex upper surface by means of its surface tension and then irradiating the polymer to effect its cure. Use of a flexible substrate, such as a vinyl or polyester film, upon which embossed indicia was formed, provides a flexible medallion which may be adhesively bonded to a contoured, non-planar surface. Upward curling of the medallion during cure is prevented by supporting the medallion on a water cooled platen during irradiation. A flexible, transparent lamp lense having a convex frontal surface is also formed by the ultraviolet cured photopolymer which is adhesively bonded adjacent to the lamp to form its lense.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.