Portable machine tool for conditioning header tube openings for butt-welding tubes
US6309145A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/306384
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable machine tool for removing stub ends of heat exchange tubes from a heat exchanger header or other plate structure and preparing the tube opening in the header for butt-welding a new tube at the opening. The tool includes a mandrel that may be locked within the tube opening and a plurality of stabilizing legs extending between the mandrel and the header for stabilizing the mandrel during machine tool operation. A cutting head is mounted concentrically on the mandrel and is advanced into engagement with the stub end of a heat exchange tube and it's respective opening to remove the stub end and prepare the opening for welding the new tube thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.