Pipe handling head
US4030746A · kind A · utility
16Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1976 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Apr 26, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A head for grasping and guiding a length of pipe, such as marine riser pipe. The head has a base, a body pivoted to the base, and a pair of latch arms pivoted to the body for grasping and releasing the pipe. Power actuated means are provided for pivoting the body on its pivot. Power actuated means are provided for pivoting the latch arms between open and closed positions. The power operated means may embody features that adapt the head to the requirements of grasping and guiding a length of riser pipe suspended from hoisting equipment by a cable and being drawn into a derrick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.