Tube-enlarging press for use in heat exchanger fabrication
US4597171A · kind A · utility
14Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1984 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Aug 17, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53122
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed is a tube-enlarging press in which clamping units are provided for preventing the fins and tubes used in a heat exchanger, from being buckled. The clamping units are provided with a through-hole for permitting the passage therethrough of mandrels falling outside of the area of the fin when the mandrels are lowered during the tube enlarging process. Therefore, the arrangements and preparations for replacement of the mandrels can be omitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.