Method of making a vehicle window
US5830397A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Apr 29, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31522
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle window including a relatively thin sheet of clear plastic material having opposed surfaces, an electrically operable defrosting grid adhered to one surface of the relatively thin sheet, and a relatively thick substrate layer of clear plastic material having opposed surfaces curved into a vehicle window configuration. The relatively thick substrate layer is adhered to the one surface of the relatively thin sheet and the electrically operable defrosting grid adhered thereto while in contact therewith in a molten state under heat and pressure within a cavity defined by two generally parallel curved die surfaces of cooperating injection molding dies so that upon solidification the surfaces of the relatively thin sheet are retained in a curved configuration in generally parallel coextensive relation to corresponding curved surfaces of the relatively thick substrate layer and a method of making the window wherein the electrically operable defrosting grid is formed by silk screening onto one surface of the relatively thin sheet while in a substantially planar condition a curable electrically conductive ink in the form of a defrosting grid and then curing the curable electrically…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.