Patents by Inventor Henrik Dishington Haldorsen

Henrik Dishington Haldorsen 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).

  • DLC-COATED GATE VALVE IN PETROLEUM PRODUCTION OR WATER INJECTION
    Publication number: 20180017172
    Abstract: The invention provides a gate valve (1) for control of petroleum production or water injection, distinctive in that at least one surface subject to slidng in operation of the valve comprises a top layer coating of diamond like carbon (DLC). The DLC contains hydrogen, preferably more than 16 atom-% and more preferred more than 17 atom-%. It is further directed to a method of commissioning or operating a gate valve according to the invention, and use of a diamond like carbon (DLC) top layer coating on at least one surface subject to sliding in operation of the gate valve. Valve parts have a tendency of sticking, adhering or cold welding together, which result in high friction. The aim of the invention is to reduce or eliminate friction problems occurring with time or operation cycles, when using a full scale gate valve.
    Type: Application
    Filed: September 18, 2017
    Publication date: January 18, 2018
    Applicant: Aker Subsea AS
    Inventors: Henrik Dishington HALDORSEN, Dag TWIST
  • DLC-coated gate valve in petroleum production or water injection
    Patent number: 9791051
    Abstract: The invention provides a gate valve (1) for control of petroleum production or water injection, distinctive in that at least one surface subject to sliding in operation of the valve comprises a top layer coating of diamond like carbon (DLC). The DLC contains hydrogen, preferably more than 16 atom-% and more preferred more than 17 atom-%. It is further directed to a method of commissioning or operating a gate valve according to the invention, and use of a diamond like carbon (DLC) top layer coating on at least one surface subject to sliding in operation of the gate valve. Valve parts have a tendency of sticking, adhering or cold welding together, which result in high friction. The aim of the invention is to reduce or eliminate friction problems occurring with time or operation cycles, when using a full scale gate valve.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 17, 2017
    Assignee: Aker Subsea AS
    Inventors: Henrik Dishington Haldorsen, Dag Twist
  • DLC-COATED GATE VALVE IN PETROLEUM PRODUCTION OR WATER INJECTION
    Publication number: 20150053281
    Abstract: The invention provides a gate valve (1) for control of petroleum production or water injection, distinctive in that at least one surface subject to sliding in operation of the valve comprises a top layer coating of diamond like carbon (DLC). The DLC contains hydrogen, preferably more than 16 atom-% and more preferred more than 17 atom-%. It is further directed to a method of commissioning or operating a gate valve according to the invention, and use of a diamond like carbon (DLC) top layer coating on at least one surface subject to sliding in operation of the gate valve. Valve parts have a tendency of sticking, adhering or cold welding together, which result in high friction. The aim of the invention is to reduce or eliminate friction problems occurring with time or operation cycles, when using a full scale gate valve.
    Type: Application
    Filed: February 28, 2013
    Publication date: February 26, 2015
    Inventors: Henrik Dishington Haldorsen, Dag Twist