Nickel blow mold and holder defining heat transfer passages therebetween
US6843646B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Aug 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C49/4823
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An air cooled or heated blow mold is shown having a mold cavity shell and a mold holder. The mold cavity shell is made by a process of nickel vapour deposition and so requires no hand finishing or polishing. The mold cavity shell has a cavity portion with a front face defining a cavity in the shape of a portion of a product to be molded. The mold holder is located rearwardly of the mold cavity shell and defines an inner wall spaced from the mold cavity shell cavity portion to define a heat transfer passage between the inner wall and the cavity portion. In use, air is passed through the heat transfer passage to transfer heat to or from the mold cavity shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.