Injector head lifting bale
US9752413B2 · kind B2 · utility
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4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | May 21, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lifting bale is mounted on top of an injector head for handling the injector head. The lifting bale includes a lifting arm attached to the injector head, an articulated member attached between the injector head and the lifting arm, the articulated member having a knee joint, and a cylinder, having an extendable and retractable arm, attached between the injector head and the knee joint. The cylinder arm is configured to be moved to raise the lifting arm, and is further configured to be extended and retracted to provide load balancing of the injector head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.