Mold apparatus and method
US6634410B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mold apparatus and method for creating designs on the interior of molds includes a resilient form with an exterior and an interior, with a design formed on the exterior. A rigid support member is removably attached to the interior of the resilient form. A mold pattern, conformed to removably receive the rigid support member and the resilient form in combination, completes the basic elements of the invention. In one aspect of the invention, a passageway in the rigid support member is provided for introducing a gas between the rigid support member and the resilient form. In another aspect of the invention, a vacuum application device is provided for applying a vacuum to the interior of the resilient form. The apparatus and method also provide for the simultaneous creation of designs on the interior and exterior of molds
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.