Relating to handling or laying pipes
US5368413A · kind A · utility
Inventor
Key dates
| Filing date | Jul 29, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Jul 29, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Pipe handling and laying apparatus 1 supports a pipe on holding and a support 2,3 and includes extendible and a retractable gripping member 4 having gripping head 4a. The pipe, supported generally within area A, is brought in end-to-end relationship with another pipe to be joined thereto. Gripper head 4a is introduced into the open end of the second pipe and ram piston P of hydraulic ram H is retracted causing legs L of gripper head 4 to pivot into extended positions to grip the interior wall of the second pipe by means of gripper feet F. Further retraction of ram piston P pulls the first pipe into close relationship with the second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.