Method of making medallion-like articles and lenses
US4087570A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44F1/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Method of making 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 are 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.