Pipe clamping device
US5583305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Sep 25, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An I.D. pipe clamp used for holding the ends of two pipes during welding, and having a means for inspecting the inside diameter of the root pass of the weld without removal of the pipe clamp or breaking of the purge gas seal. The pipe clamp has a frame with two clamping mechanisms for locking the clamp in position within the pipe ends. A means for inspecting, such as a video camera or other nondestructive testing device, is mounted on the pipe clamp between the two clamping mechanisms. Gas purge dams are located proximate each clamping mechanism to facilitate the creation of an inert gas purge in the region of the weld joint. The means for inspecting is operated to inspect the root pass of the weld prior to breaking the gas purge and prior to removal of the pipe clamp. The pipe clamp may also support a means for dressing of the weld I.D., such as a brush or a grinding tool, along with a vacuum line for removal of debris created during operation of the means for dressing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.