Metal dual-color extruded plastic key
US5935691A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The subject invention relates to a type of metal dual-color extruded plastic key; said key comprising an electroplatable plastic material and a non-electroplatable plastic material; said two parts being subjected to plastic dual-color extrusion forming process; said non-electroplatable plastic material serving to produce a letter or figure; the area surrounding said non-electroplatable plastic material being the electroplatable plastic material; the surface of said electroplatable material being a layer of light-proof electroplated coating, to form the required metal surface; whereby the non-electroplatable plastic material being used to form the area where the letter or figure is to appear, so the lighting could permeate from the letter or figure; the above structure is so designed to provide a high added value to the key product with an exterior of excellent light permeability and comfortable touch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.