Patents by Inventor David W. Coleman
David W. Coleman 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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Publication number: 20240166508Abstract: A method of decomposing a feedstock gas includes introducing the feedstock gas into a mixing chamber and introducing a combustion gas into a combustion chamber connected to the mixing chamber. The combustion gas is combusted so as to produce combustion product gases. A first portion of the combustion products gases flows into the mixing chamber and mixes with the feedstock gas, and a second portion of the combustion products gases initially remains in the combustion chamber. At least some of the feedstock gas is decomposed as a result of the first portion of the combustion products gases flowing into the mixing chamber and mixing with the feedstock gas. At least some of the second portion of the combustion product gases is flowed into the mixing chamber, and the at least some of the second portion of the combustion product gases is mixed with undecomposed feedstock gas, so as to decompose at least some of the undecomposed feedstock gas.Type: ApplicationFiled: September 25, 2023Publication date: May 23, 2024Inventors: David Aaron Leboe, Timothy Scott Coleman, Donald W. Kendrick, Kenneth William Kratschmar
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Patent number: 9574417Abstract: A bottom hole assembly for engaging and removing an object within a wellbore comprises a cutting tool at a lower end. Continued engagement of the cutting tool with the object is facilitated by an axial compression device disposed within the bottom hole assembly below the anchor of the bottom hole assembly. The axial compression device comprises a compressed position and an expanded or extended position. As the object is being cut or abraded, the axial compression device moves from the compressed position toward the expanded position so that a continued downward force is transferred to the object by the bottom hole assembly.Type: GrantFiled: June 5, 2013Date of Patent: February 21, 2017Assignee: Baker Hughes IncorporatedInventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
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Patent number: 9051799Abstract: A device is associated with a downhole tool to control the weight that can be set down on the tool while the tool is operating. A shroud is secured to the string that supports the tool with interior modular biasing components that for run in extend the tool past the shroud. Upon encountering a support for the tool, further set down weight compresses the biasing components for a predetermined stroke length delineated by the shroud landing on a support. If the tool is a mill, its operation takes place under the biasing force as the mill advances into the piece being cut or milled under a predetermined pressure. When the mill reaches full extension from the shroud the process can be repeated until the milling is complete. The shroud also centralizes the mill during milling.Type: GrantFiled: September 6, 2012Date of Patent: June 9, 2015Assignee: Baker Hughes IncorporatedInventors: David W. Coleman, Benny J. Vincent
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Patent number: 8915298Abstract: A tool is run in with a bottom hole assembly that includes a seal and support within the tubing where a fish is to be milled. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected milling tool at the rotor of the progressive cavity motor. The fluid exiting the stator goes through a debris removal device and can return to the surface through an annulus around the production tubing. A telescoping joint allows the mill to axially progress with a force applied to the fish generated by a tractor or a stack of Belleville washers.Type: GrantFiled: August 16, 2012Date of Patent: December 23, 2014Assignee: Baker Hughes IncorporatedInventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
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Publication number: 20140360724Abstract: A bottom hole assembly for engaging and removing an object within a wellbore comprises a cutting tool at a lower end. Continued engagement of the cutting tool with the object is facilitated by an axial compression device disposed within the bottom hole assembly below the anchor of the bottom hole assembly. The axial compression device comprises a compressed position and an expanded or extended position. As the object is being cut or abraded, the axial compression device moves from the compressed position toward the expanded position so that a continued downward force is transferred to the object by the bottom hole assembly.Type: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Inventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
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Publication number: 20140060801Abstract: A device is associated with a downhole tool to control the weight that can be set down on the tool while the tool is operating. A shroud is secured to the string that supports the tool with interior modular biasing components that for run in extend the tool past the shroud. Upon encountering a support for the tool, further set down weight compresses the biasing components for a predetermined stroke length delineated by the shroud landing on a support. If the tool is a mill, its operation takes place under the biasing force as the mill advances into the piece being cut or milled under a predetermined pressure. When the mill reaches full extension form the shroud the process can be repeated until the milling is complete. The shroud also centralizes the mill during milling.Type: ApplicationFiled: September 6, 2012Publication date: March 6, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: David W. Coleman, Benny J. Vincent
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Publication number: 20130153227Abstract: A tool is run in with a bottom hole assembly that includes a seal and support within the tubing where a fish is to be milled. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected milling tool at the rotor of the progressive cavity motor. The fluid exiting the stator goes through a debris removal device and can return to the surface through an annulus around the production tubing. A telescoping joint allows the mill to axially progress with a force applied to the fish generated by a tractor or a stack of Belleville washers.Type: ApplicationFiled: August 16, 2012Publication date: June 20, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
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Patent number: 8074716Abstract: A fluid bypass tool that can be incorporated into a fishing arrangement between a fluid-operated latching tool and a fluid-operated jarring tool. The latching tool is actuated with fluid from the surface to be latched to and unlatched from a stuck tool in the wellbore. The bypass tool permits fluid flow to the latching tool to be interrupted so that the jarring tool may be operated without risk of inadvertently causing the latching tool to unlatch from the stuck tool.Type: GrantFiled: July 16, 2009Date of Patent: December 13, 2011Assignee: Baker Hughes IncorporatedInventors: Jace E. Melder, Johnny N. Champagne, David W. Coleman
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Publication number: 20110011588Abstract: A fluid bypass tool that can be incorporated into a fishing arrangement between a fluid-operated latching tool and a fluid-operated jarring tool. The latching tool is actuated with fluid from the surface to be latched to and unlatched from a stuck tool in the wellbore. The bypass tool permits fluid flow to the latching tool to be interrupted so that the jarring tool may be operated without risk of inadvertently causing the latching tool to unlatch from the stuck tool.Type: ApplicationFiled: July 16, 2009Publication date: January 20, 2011Applicant: Baker Hughes IncorporatedInventors: Jace E. Melder, Johnny N. Champagne, David W. Coleman
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Patent number: 5709904Abstract: Invention is directed to a system, i.e. method and apparatus, for manufacturing thin-walled capillary columns for use in a gas chromatographic device. The system involves the sequential filling and evacuating of the columns in a controlled environment, where the system is under the control of a microprocessor to achieve improved processing control and monitoring. The system also produces a consistant homogeneous film of polymer along the inner wall of the columns.Type: GrantFiled: July 15, 1996Date of Patent: January 20, 1998Assignee: C&C Column Technologies, Inc.Inventor: David W. Coleman, Sr.