Open-faced rod spinner
US8006590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Sep 26, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/164
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An open-faced rod-spinning device configured for making and/or breaking joints between threaded drill rods. The rod-spinning device may include a drive gear with an open face. The drive gear may also be coupled to a plurality of drive pins. The rod-spinning device may include a carriage assembly including an open face for receiving and rotating about a drill rod. The carriage assembly may include a plurality of gripping lobes configured to be engaged and rotated by the drive pins about pivot pins. The drive gear may be configured to rotate relative to the carriage assembly to cause the drive pins to engage and rotate the gripping lobes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.