Combined induction heating and coating system for pipe weld joints
US4595607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1985 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Aug 5, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0811
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An apparatus and method for heating and coating a section of a pipe comprising a plurality of induction type heaters supported in spaced circumferential relation around the pipe section, the heaters having relatively flat and hollow induction coils therein, the coils of the induction heaters being oriented in a cylindrical surface adjacent to, and parallel with, the surface of the pipe, a coating dispenser mounted between a pair of induction heaters for dispensing a coating material on the surface of the pipe, the heaters and dispenser being rotated as a single assembly around the pipe while simultaneously applying an alternating electric potential to the induction heaters to heat the pipe to a suitable application temperature for a coating material, the coating material being applied to the thus-heated pipe through the dispenser while continuing to rotate the assembly, water being passed through the copper coils to keep them cool during the heating of the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.