Patents by Inventor Carl Richard Wood
Carl Richard Wood 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: 9206668Abstract: A valve has a moveable member movable between open and closed configurations and a cutting device arranged to shear against an anvil member when moving between the open and closed configurations and a sealing member providing a seat for seating of the moveable member when the moveable member is in the closed configuration. The anvil member and the sealing member are moveable relative to one another when the moveable member is moving from the open to the closed configuration. During opening and closing the sealing member is displaced away from the cutting device as the cutting device engages the anvil member. The sealing member is pushed away from the moveable member and the anvil to a maximum separation from the movable member at the point on the stroke when the cutting surface of the moveable member is moving past the anvil member.Type: GrantFiled: October 2, 2012Date of Patent: December 8, 2015Assignee: National Oilwell Varco UK LimitedInventor: Carl Richard Wood
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Patent number: 8967589Abstract: The present disclosure relates to seals and sealing arrangements, especially those used in wireline valves. The seal comprises an elastomeric seal body with a sealing surface, a plurality of generally planar inserts embedded within the elastomeric seal body adjacent the sealing surface, and having elastomeric seal material disposed between the plurality of generally planar inserts. The generally planar inserts may have a slightly wedge shape and may be embedded into the elastomeric seal body in a generally fan-shaped orientation. They may be orientated such that upon contacting a substantially tubular shaped body to be sealed around and the subsequent deformation of the seal body about said substantially tubular shaped body, the plurality of generally planar inserts become orientated such that they extend radially from the substantially tubular shaped body.Type: GrantFiled: April 24, 2012Date of Patent: March 3, 2015Assignee: National Oilwell Varco UK LimitedInventors: Carl Richard Wood, Runi Djurhuus Joensen, George Senkbeil
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Patent number: 8770541Abstract: A sealing apparatus and method is disclosed, particularly for sealing around an elongate member which passes through a throughbore of a valve device, the apparatus having an upper sealing element and a lower sealing element, each being adapted to change configuration from an open configuration to a sealed configuration within the valve device to seal the throughbore of the valve device around the elongate member. The upper and lower sealing elements are separate and moveable independently from one another, and are configured to be actuated between open and sealed configurations by a common actuator. This actuation reduces the stack height and the weight of the valve, and reduces the number of well seals.Type: GrantFiled: September 1, 2010Date of Patent: July 8, 2014Assignee: National Oilwell Varco UK, LimitedInventor: Carl Richard Wood
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Publication number: 20130099449Abstract: The present disclosure relates to seals and sealing arrangements, especially those used in wireline valves. The seal comprises an elastomeric seal body with a sealing surface, a plurality of generally planar inserts embedded within the elastomeric seal body adjacent the sealing surface, and having elastomeric seal material disposed between the plurality of generally planar inserts. The generally planar inserts may have a slightly wedge shape and may be embedded into the elastomeric seal body in a generally fan-shaped orientation. They may be orientated such that upon contacting a substantially tubular shaped body to be sealed around and the subsequent deformation of the seal body about said substantially tubular shaped body, the plurality of generally planar inserts become orientated such that they extend radially from the substantially tubular shaped body.Type: ApplicationFiled: April 24, 2012Publication date: April 25, 2013Inventors: Carl Richard Wood, Runi Djurhuus Joensen, George Senkbeil
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Publication number: 20120241663Abstract: A sealing apparatus and method is disclosed, particularly for sealing around an elongate member which passes through a throughbore of a valve device, the apparatus having an upper sealing element and a lower sealing element, each being adapted to change configuration from an open configuration to a sealed configuration within the valve device to seal the throughbore of the valve device around the elongate member. The upper and lower sealing elements are separate and moveable independently from one another, and are configured to be actuated between open and sealed configurations by a common actuator. This actuation reduces the stack height and the weight of the valve, and reduces the number of well seals.Type: ApplicationFiled: September 1, 2010Publication date: September 27, 2012Applicant: National Oilwell Varco UK, LimitedInventor: Carl Richard Wood
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Patent number: 6845958Abstract: A wireline valve/blowout preventor is capable of resisting the flow of fluids through a bore. At least one actuator assembly has a first and second end moveable between a first configuration in which fluids can flow through the bore, and a second configuration in which fluids flow through the bore is prevented. The first and second ends are each exposed to the pressure in the bore. A biasing arrangement may bias the actuator assembly toward one of the first and second configurations. A locking member may also be provided to abut with the actuator assembly when it is in the second configuration in order to prevent movement of the actuator assembly from the second configuration to the first configuration. Also, the actuator assembly may have at least one rod assembly which extends from the actuator assembly to a position where it is visible from an outside of the apparatus.Type: GrantFiled: September 3, 2002Date of Patent: January 25, 2005Assignee: Elmar Services LimitedInventors: Carl Richard Wood, Kenneth Steven Coull
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Publication number: 20030075699Abstract: A wireline valve/blowout preventor is capable of resisting the flow of fluids through a bore. At least one actuator assembly has a first and second end moveable between a first configuration in which fluids can flow through the bore, and a second configuration in which fluids flow through the bore is prevented. The first and second ends are each exposed to the pressure in the bore. A biasing arrangement may bias the actuator assembly toward one of the first and second configurations. A locking member may also be provided to abut with the actuator assembly when it is in the second configuration in order to prevent movement of the actuator assembly from the second configuration to the first configuration. Also, the actuator assembly may have at least one rod assembly which extends from the actuator assembly to a position where it is visible from an outside of the apparatus.Type: ApplicationFiled: September 3, 2002Publication date: April 24, 2003Inventors: Carl Richard Wood, Kenneth Steven Coull
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Patent number: D732086Type: GrantFiled: May 10, 2013Date of Patent: June 16, 2015Assignee: National Oilwell Varco UK LimitedInventors: Harry Richard Stanley O'Brien, Carl Richard Wood