Method and apparatus for producing a high fin density extruded heat dissipator
US4187711A · kind A · utility
35Cited by
19References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Jul 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/702
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a high fin density heat dissipator is disclosed in which the dissipator is extruded through a die in a partially cylindrical shape with the elongated fins arranged on the base and extending radially therefrom. The extruded dissipator is straightened under tensile and bumping forces in a manner such that the base assumes a planar shape and the fins become substantially parallel to each other. Apparatus for straightening the extruded dissipator and a die for extruding the same are illustrated and described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.