Patent ID: 9359784
Filing Date: 2016-06-07
CPC Classification: E04H,E21B

Claim Text:
1. A drilling rig, comprising: a collapsible substructure including: a pair of raising cylinders pivotally connected at one end to the base box and having an opposite articulating end; the raising cylinders being selectively extendable relative to the pivotal connection at the base box; a mast, the mast having a lower mast section comprising; a pair of wing brackets movably secured to the lower mast section; the wing brackets being movable between a stowed position generally within the width of the lower mast section, and a deployed position extending beyond the width of the lower mast section; and, the raising cylinders connectable to the wing brackets and extendable to rotate the lower mast section from a generally horizontal position to a raised position above the drill floor.