Combined integral molded product using pre-molded member
US6780067B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2000 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | May 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/36
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
One or more pre-molded resin inserts (2) are placed in a metal mold and an outer molded resin body (3) is formed about the insert. The cooling speed is increased by: forming the insert with projections (21) to space a rear part of the insert from walls of the metal mold so that molten resin flows into position about the insert; forming convex parts (22) on portions of the outer resin body adjacent the insert (2); forming recesses (23) in the molded outer housing, the recesses extending between the inserts and formed to receive fins of a front metal mold part; forming plural pin carrier inserts as one unit; or forming the inserts as layered bodies. This increases heat transfer from the outer body molten material to the cooler metal mold parts at regions adjacent to the pre-molded insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.