Traveling and locking centralizer
US8584774B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2010 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Sep 2, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill system for use with a drill rod includes a support member, and a drill assembly movably associated with the support member and configured to be connected to the drill rod. The system further includes a centralizing device movably associated with the support member and configured to receive the drill rod. The centralizing device includes a movable jaw and a latch arm connected to the jaw and configured to move the jaw between an open position and a closed position for retaining the drill rod. Furthermore, the latch arm has a locking feature configured to hold the latch arm in a locked position to thereby hold the jaw in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.