Patents by Inventor Mark Dunbar

Mark Dunbar 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).

  • Patent number: 10370910
    Abstract: The invention relates to a brake, shear and cable management system and method for effectively braking and cutting cable from a rotatable drum, such as drilling line, boring line, electrical line, fiber optic line or the like. The brake, shear and cable management system includes a cable management assembly, a cable brake assembly and a cable cutting assembly used in conjunction to manage, retain and sever a spent portion of cable upon the drum.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 6, 2019
    Assignee: Absolute Oilfield Equipment, LLC
    Inventors: Frank Fetters, III, Mark Dunbar
  • Publication number: 20160305199
    Abstract: The invention relates to a brake, shear and cable management system and method for effectively braking and cutting cable from a rotatable drum, such as drilling line, boring line, electrical line, fiber optic line or the like. The brake, shear and cable management system includes a cable management assembly, a cable brake assembly and a cable cutting assembly used in conjunction to manage, retain and sever a spent portion of cable upon the drum.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Inventors: Frank Fetters, III, Mark Dunbar
  • Patent number: 9376294
    Abstract: A brake, shear and cable management system and method, which is attachable adjacent to a reeling-type drum to effectively brake and cut cable, such as drilling line, boring line, electrical line, fiber optic line or the like. The brake, shear and cable management system includes a cable management assembly, a cable brake assembly and a cable cutting assembly used in conjunction to manage, retain and sever a spent portion of cable upon the drum.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: June 28, 2016
    Assignee: Absolute Oilfield Equipment, LLC
    Inventors: Frank Fetters, III, Mark Dunbar
  • Publication number: 20140034887
    Abstract: The invention relates to a brake, shear and cable management system and method, which is attachable adjacent to a reeling-type drum to effectively brake and cut cable, such as drilling line, boring line, electrical line, fiber optic line or the like. The brake, shear and cable management system includes a cable management assembly, a cable brake assembly and a cable cutting assembly used in conjunction to manage, retain and sever a spent portion of cable upon the drum.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: Absolute Oilfield Equipment, LLC
    Inventors: Frank Fetters, III, Mark Dunbar
  • Patent number: 7981379
    Abstract: The invention uses a feed of atmospheric air and mixes the air with hydrogen. The hydrogen and air mixture is fed into a catalytic reactor where a deoxygenation reaction occurs. The deoxygenation reaction uses a platinum catalyst to produce water from oxygen and hydrogen. The nitrogen passes through the catalytic reactor without reacting with the hydrogen, the oxygen, or the water. The water is separated from the nitrogen in a dryer. The nitrogen may then be used in drilling and production operations. The water is fed into an electrolyzer where an electrolysis reaction occurs. The electrolyzer passes an electrical current through the water to produce gaseous oxygen and hydrogen. The hydrogen is recycled back to the catalytic reactor and the oxygen may be vented or sold.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 19, 2011
    Assignee: Sunstone Corporation
    Inventors: William James Hughes, Mark Dunbar
  • Publication number: 20090060801
    Abstract: The invention uses a feed of atmospheric air and mixes the air with hydrogen. The hydrogen and air mixture is fed into a catalytic reactor where a deoxygenation reaction occurs. The deoxygenation reaction uses a platinum catalyst to produce water from oxygen and hydrogen. The nitrogen passes through the catalytic reactor without reacting with the hydrogen, the oxygen, or the water. The water is separated from the nitrogen in a dryer. The nitrogen may then be used in drilling and production operations. The water is fed into an electrolyzer where an electrolysis reaction occurs. The electrolyzer passes an electrical current through the water to produce gaseous oxygen and hydrogen. The hydrogen is recycled back to the catalytic reactor and the oxygen may be vented or sold.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 5, 2009
    Inventors: William James Hughes, Mark Dunbar
  • Patent number: 7468173
    Abstract: The invention uses a feed of atmospheric air and mixes the air with hydrogen. The hydrogen and air mixture is fed into a catalytic reactor where a deoxygenation reaction occurs. The deoxygenation reaction uses a platinum catalyst to produce water from oxygen and hydrogen. The nitrogen passes through the catalytic reactor without reacting with the hydrogen, the oxygen, or the water. The water is separated from the nitrogen in a dryer. The nitrogen may then be used in drilling and production operations. The water is fed into an electrolyzer where an electrolysis reaction occurs. The electrolyzer passes an electrical current through the water to produce gaseous oxygen and hydrogen. The hydrogen is recycled back to the catalytic reactor and the oxygen may be vented or sold.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: December 23, 2008
    Assignee: Sunstone Corporation
    Inventors: William James Hughes, Mark Dunbar
  • Publication number: 20050186130
    Abstract: The invention uses a feed of atmospheric air and mixes the air with hydrogen. The hydrogen and air mixture is fed into a catalytic reactor where a deoxygenation reaction occurs. The deoxygenation reaction uses a platinum catalyst to produce water from oxygen and hydrogen. The nitrogen passes through the catalytic reactor without reacting with the hydrogen, the oxygen, or the water. The water is separated from the nitrogen in a dryer. The nitrogen may then be used in drilling and production operations. The water is fed into an electrolyzer where an electrolysis reaction occurs. The electrolyzer passes an electrical current through the water to produce gaseous oxygen and hydrogen. The hydrogen is recycled back to the catalytic reactor and the oxygen may be vented or sold.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 25, 2005
    Inventors: William Hughes, Mark Dunbar
  • Patent number: 6089223
    Abstract: A direct contact water heating system employs a vertical water tower having a sidewall with a combustion inlet opening spaced above the tower lower end. A generally horizontal combustion chamber has a sidewall in communication with the tower combustion inlet and an end wall spaced from the water tower. A burner has a combustion outlet in communication with an opening in the end wall, the combustion chamber end wall having an annular area surrounding the burner combustion outlet. Products of combustion flow from the burner, through the combustion chamber into the water tower through the combustion inlet opening. A shell has an inner end attached to the water tower sidewall. A sidewall portion of the shell surrounds the combustion chamber sidewall and an annular portion is spaced exteriorly of the annular area of the combustion chamber end wall. An interior surface of the outer shell and an exterior surface of the combustion chamber form a closed envelope having a water inlet and a water outlet.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: July 18, 2000
    Assignee: Webco Industries, Incorporated
    Inventors: Robert Jasper, Bill O. Rollings, Mark Dunbar