Insert molding method using a crush rib
US5306459A · kind A · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/14934
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for encapsulating at least a portion of a heat sink insert with plastic material has been provided in which flashing has been eliminated. There is provided a heat sink insert which has a bottom surface, a shoulder portion, and a rib member formed integrally with and extending upwardly from the shoulder portion to define a crush zone. The rib member is deformed to conform with the contour of a cavity formed by the first and second mold plates so as to create a seal between the insert and the cavity. The rib member also serves to compensate for dimensional variations of the insert and the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.