Method of making heat transfer tube
US4873127A · kind A · utility
5Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Jun 21, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F1/003
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat transfer tube comprising an inner tube formed of copper or steel, an intermediate layer having a uniform thickness, mounted on the outer periphery of the inner tube and formed of a low melting point metal such as solder, tin or lead and an outer tube of lead or lead alloy mounted on the intermediate layer on the inner tube and metallurgically bonded with the intermediate layer when the low melting point metal is melted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.