Coiled tubing unit locking knee-joint mechanisms
US9574411B2 · kind B2 · utility
4Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 2015 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jul 11, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A knee-joint mechanism for a folding gooseneck used in a coiled tubing unit, includes a main structure having a distal end pivotally attached thereto, the knee-joint mechanism including an articulated member attached between the main structure and the pivotally attached distal end of the gooseneck, the articulated member having a joint, and a cylinder attached between the main structure and the articulated member. The arm of the cylinder is extended to push the joint of the articulated member to an over-center position, thereby locking the articulated member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.