Molding method for making plastic foam-backed shells
US6706222B2 · kind B2 · utility
8Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | May 11, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/0469
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of molding a plastic shell having an outer pliable skin layer and a foam backing layer comprises casting a first skin layer portion from wear resistant material in a first casting sequence for those areas of the panel susceptible to high wear and in a second casting sequence casting self-skinning foamable material against the remaining portion of the mold surface and over the first-cast skin layer portion to develop, simultaneously, the remaining outer skin layer portion of the shell and a foam backing layer which extends across the entire skin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.