Patents Assigned to Black Hawk Energy Services Ltd.
  • Counterweight assembly for a self-propelled derrick rig assembly
    Patent number: 9341028
    Abstract: 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.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 17, 2016
    Assignee: Black Hawk Energy Services Ltd.
    Inventors: Stuart Buckingham, Matt J. Michel