Patent · US Active

Articulation assembly for moving a drill mast

US7905299B2 · kind B2 · utility

1Cited by

5References

26Claims

0Family size

Assignee

Longyear TM, Inc. · US

Inventors

Stefan Wrede · Kirchhundem, DE
Christof Kruse · Wenden, DE

Key dates

Filing date	Sep 18, 2008
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Apr 8, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B15/04
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A jib assembly for use with a drill rig includes a jib boom having a first end and a second end. The jib boom is to rotate about the first end and the second end is configured to be coupled to a mast assembly mount. The jib assembly also includes an articulation assembly having at least one variable length link having a first end and a second end. The first end of the variable length link is offset from the jib boom and the second end is configured to be pivotingly coupled to the mast assembly mount.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.