Patents by Inventor Douglas Andrew Hunter

Douglas Andrew Hunter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190003271
    Abstract: For wellbore operations, a pipe handler moves pipe up to a rig floor. A pipe loader moves pipe from a presented position into alignment with well center. The pipe handler moves pipe up to a slanted presented position. The slanted presented position can be adjusted by manipulating the drive system.
    Type: Application
    Filed: December 14, 2016
    Publication date: January 3, 2019
    Inventors: Jason Peter CLARKE, Douglas Andrew HUNTER, Daniel Harvard KUSLER, Mark Charles TAGGART
  • Publication number: 20180363834
    Abstract: A vehicle support structure, which in petroleum wellsite operations is commonly called a rig mat or a ground stabilizing mat, includes: a main body including an upper surface, an underside, a front end and a rear end, the main body defining a planar structuring with a thickness; a front pad coupled to the main body and positioned adjacent the front end; a rear pad coupled to the main body and positioned adjacent the rear end, the front pad and the rear pad each configured to be moveable between a supporting position protruding from the underside of the main body and a retracted position in plane or retracted from the underside; a front pad drive mechanism for the front pad, the front pad drive mechanism configured to drive the front pad to move between the supporting position and the retracted position and to move the front pad forward and backwards and side to side relative to the main body; and a rear pad drive mechanism for the rear pad, the rear pad drive mechanism configured to drive the rear pad to move
    Type: Application
    Filed: December 7, 2016
    Publication date: December 20, 2018
    Inventors: Daniel John CLARKE, Douglas Andrew HUNTER, Daniel Harvard KUSLER
  • Publication number: 20180023346
    Abstract: An automated rig apparatus for drilling or servicing a well is provided. The apparatus can include a motor vehicle having a frame, and a hinged derrick mast pivotally attached to the frame. The apparatus can further include a rack disposed in the mast and a carriage assembly with pinion motors configured to travel up and down the rack when the mast is raised to a vertical position. A tool carrier configured to receive a top drive unit or a power swivel unit can be attached to the carriage assembly. The apparatus can further include a movable platform and an operators cab configured to be moved to a desired position relative to the derrick mast when the mast is raised to a vertical position. The apparatus can further include a hydraulic drive assembly to operate the apparatus, and a mud pump and manifold for pumping drilling mud.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 25, 2018
    Inventors: MARK CHARLES TAGGART, DOUGLAS ANDREW HUNTER, DANIEL HARVARD KUSLER, COLIN REYNOLD KNAPP
  • Patent number: 9797196
    Abstract: An automated rig apparatus for drilling or servicing a well is provided. The apparatus can include a motor vehicle having a frame, and a hinged derrick mast pivotally attached to the frame. The apparatus can further include a rack disposed in the mast and a carriage assembly with pinion motors configured to travel up and down the rack when the mast is raised to a vertical position. A tool carrier configured to receive a top drive unit or a power swivel unit can be attached to the carriage assembly. The apparatus can further include a movable platform and an operators cab configured to be moved to a desired position relative to the derrick mast when the mast is raised to a vertical position. The apparatus can further include a hydraulic drive assembly to operate the apparatus, and a mud pump and manifold for pumping drilling mud.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 24, 2017
    Assignee: PROSTAR MANUFACTURING INC.
    Inventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
  • Publication number: 20150259984
    Abstract: An automated rig apparatus for drilling or servicing a well is provided. The apparatus can include a motor vehicle having a frame, and a hinged derrick mast pivotally attached to the frame. The apparatus can further include a rack disposed in the mast and a carriage assembly with pinion motors configured to travel up and down the rack when the mast is raised to a vertical position. A tool carrier configured to receive a top drive unit or a power swivel unit can be attached to the carriage assembly. The apparatus can further include a movable platform and an operators cab configured to be moved to a desired position relative to the derrick mast when the mast is raised to a vertical position. The apparatus can further include a hydraulic drive assembly to operate the apparatus, and a mud pump and manifold for pumping drilling mud.
    Type: Application
    Filed: December 19, 2014
    Publication date: September 17, 2015
    Inventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
  • Publication number: 20030226336
    Abstract: A forage compactor for compressing forage or crop into bales of increased crop density for transportation. A crop feed area feeds crop to a conveyor where it is moved to a scale area for proper bale weight. An indexer severs the crop while moving it from the scale area to the compression chamber. The crop is compressed and moved to a strapping chamber where straps are applied to the compressed crop. The bound bale is manipulated as desired at the product handling area downstream from the strapping. chamber. The crop is provided with substantially constant stress during compression and moisture sensors in the strapping chamber sense the moisture content of the severed crop within the bale to be bound. The weight of the crop within the compression area may be reduced to reduce machine overloading. Keyway plungers provide reduced side loading on the main ram used for crop compression. The feed inlet area is located on the same side of the.
    Type: Application
    Filed: February 20, 2003
    Publication date: December 11, 2003
    Applicant: HWD HOLDINGS LTD.
    Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood
  • Patent number: 6526731
    Abstract: A forage compactor for compressing forage or crop into bales of increased crop density for transportation. A crop feed area feeds crop to a conveyor where it is moved to a scale area for proper bale weight. An indexer severs the crop while moving it from the scale area to the compression chamber. The crop is compressed and moved to a strapping chamber where straps are applied to the compressed crop. The bound bale is manipulated as desired at the product handling area downstream from the strapping chamber. The crop is provided with substantially constant stress during compression and moisture sensors in the strapping chamber sense the moisture content of the severed crop within the bale to be bound. The weight of the crop within the compression area may be reduced to reduce machine overloading. Keyway plungers provide reduced side loading on the main ram used for crop compression.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: March 4, 2003
    Assignee: HWD Holdings Ltd.
    Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood
  • Patent number: 6085486
    Abstract: A forage compactor for compressing forage or crop into bales of increased crop density for transportation. A crop feed area feeds crop to a conveyor where it is moved to a scale area for proper bale weight. An indexer severs the crop while moving it from the scale area to the compression chamber. The crop is compressed and moved to a strapping chamber where straps are applied to the compressed crop. The bound bale is manipulated as desired at the product handling area downstream from the strapping chamber. The crop is provided with substantially constant stress during compression and moisture sensors in the strapping chamber sense the moisture content of the severed crop within the bale to be bound. The weight of the crop within the compression area may be reduced to reduce machine overloading. Keyway plungers provide reduced side loading on the main ram used for crop compression.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: July 11, 2000
    Assignee: HWD Holdings Ltd.
    Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood