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).
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Patent number: 11402053Abstract: 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 moveType: GrantFiled: December 7, 2016Date of Patent: August 2, 2022Assignee: Prostar Energy Technologies (USA) LLCInventors: Daniel John Clarke, Douglas Andrew Hunter, Daniel Harvard Kusler
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Patent number: 11230886Abstract: 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: GrantFiled: June 5, 2020Date of Patent: January 25, 2022Assignee: Prostar Energy Technologies (USA) LLCInventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
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Patent number: 10988994Abstract: 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: GrantFiled: July 1, 2020Date of Patent: April 27, 2021Assignee: Prostar Energy Technologies (USA) LLCInventors: Jason Peter Clarke, Douglas Andrew Hunter, Daniel Harvard Kusler, Mark Charles Taggart
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Publication number: 20200332610Abstract: 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: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Inventors: Jason Peter CLARKE, Douglas Andrew HUNTER, Daniel Harvard KUSLER, Mark Charles TAGGART
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Publication number: 20200325730Abstract: 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: ApplicationFiled: June 5, 2020Publication date: October 15, 2020Inventors: MARK CHARLES TAGGART, DOUGLAS ANDREW HUNTER, DANIEL HARVARD KUSLER, COLIN REYNOLD KNAPP
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Patent number: 10738545Abstract: 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: GrantFiled: December 14, 2016Date of Patent: August 11, 2020Assignee: Prostar Energy Technologies (USA) LLCInventors: Jason Peter Clarke, Douglas Andrew Hunter, Daniel Harvard Kusler, Mark Charles Taggart
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Patent number: 10711523Abstract: 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: GrantFiled: September 15, 2017Date of Patent: July 14, 2020Assignee: PROSTAR ENERGY TECHNOLOGIES (USA) LLCInventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
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Publication number: 20190003271Abstract: 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: ApplicationFiled: December 14, 2016Publication date: January 3, 2019Inventors: Jason Peter CLARKE, Douglas Andrew HUNTER, Daniel Harvard KUSLER, Mark Charles TAGGART
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Publication number: 20180363834Abstract: 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 moveType: ApplicationFiled: December 7, 2016Publication date: December 20, 2018Inventors: Daniel John CLARKE, Douglas Andrew HUNTER, Daniel Harvard KUSLER
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Publication number: 20180023346Abstract: 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: ApplicationFiled: September 15, 2017Publication date: January 25, 2018Inventors: MARK CHARLES TAGGART, DOUGLAS ANDREW HUNTER, DANIEL HARVARD KUSLER, COLIN REYNOLD KNAPP
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Patent number: 9797196Abstract: 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: GrantFiled: December 19, 2014Date of Patent: October 24, 2017Assignee: PROSTAR MANUFACTURING INC.Inventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
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Publication number: 20150259984Abstract: 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: ApplicationFiled: December 19, 2014Publication date: September 17, 2015Inventors: Mark Charles Taggart, Douglas Andrew Hunter, Daniel Harvard Kusler, Colin Reynold Knapp
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Publication number: 20030226336Abstract: 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: ApplicationFiled: February 20, 2003Publication date: December 11, 2003Applicant: HWD HOLDINGS LTD.Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood
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Patent number: 6526731Abstract: 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: GrantFiled: May 26, 2000Date of Patent: March 4, 2003Assignee: HWD Holdings Ltd.Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood
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Patent number: 6085486Abstract: 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: GrantFiled: December 11, 1997Date of Patent: July 11, 2000Assignee: HWD Holdings Ltd.Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood