Black Hawk Energy Services, Inc.

Lavalley Industries, LLC

Tim Berg

Stuart Buckingham

Matt J Michel

Dmitry Spivak

Jason LaValley

Daniel Larson

Matthew Justin Michel

Jesse J Kilde

Rodney Wurgler

David Cress

Stuart Johnson

Jason Lavalley

Improvements to base beams and self-propelled derrick rigs are described. The base beam can have two or more stabilizer arms which can be deployed. The base beam is also designed to support the derrick rig. An optional counterweight assembly can be connected to the front of the rig. The self-propelled derrick rig can be easily and quickly mounted to the base beam, and when mounted, the assembly will be able to withstand high hook loads and wind loading without the danger of the rig coming off of its wheels or falling over.

Base beam and self-propelled derrick rig assembly

Methods of supporting a self-propelled derrick rig

A two-piece grab arm housing for a grapple mechanism useable on a grapple attachment is described. The grab arm housing includes a lower arm housing with grab arms mounted to the lower arm housing, and an upper arm housing mounted to the lower arm housing. The upper arm housing and the lower arm housing are movable relative to one another in an x-direction and are moveable together in a y-direction perpendicular to the x-direction. In addition, the upper arm housing includes an opening through which a main beam of the grapple attachment can extend.

Grab arm housing for grapple attachment

Growing community of inventors

Mendota Heights, MN, United States of America

Tim Berg