Method of making a heat pipe with improved end cap
US5029389A · kind A · utility
30Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49808
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of purging and sealing a heat pipe includes brazing an end cap to the end of a heat pipe. The end cap has a hole therethrough, through which the heat pipe is charged. After charging, the heat pipe can be sealed simply by pinching the end cap to cold weld the hole shut, and at the same time any excess portion of the end cap can be severed off. Using this process the end cap takes up less of the condensor zone, providing for more efficient heat exchange. Additionally, the seal is more reliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.