Method and apparatus for forming a thermoplastic part with injected elastomer seal
US6579487B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Apr 11, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/265
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for manufacturing a thermoplastic part (1) with an injected seal (3) as well as to an injection molding apparatus and a corresponding thermoplastic part. For injecting the seal, a groove (2) is formed during molding of the thermoplastic part (1) in which groove liquid crosslinked plastic as material for the seal (3) is injected. Sealing projections (12) are formed on the groove edge and/or on the injection mold in order to prevent an overflowing beyond the groove edges during injection. When closing the mold, undercuts (6) are formed on the upper edge of the groove for holding the solidified seal (3) in the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.