Patents by Inventor Mark C. James

Mark C. James 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: 11065443
    Abstract: A means for treating breathing disorders by stimulating respiratory muscles or nerves to entrain respiratory systems while leaving respiratory drive intact. Embodiments of the invention employ frequency analysis to determine if appropriate stimulation energy is being applied.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 20, 2021
    Assignee: Zoll Respicardia, Inc.
    Inventors: Mark Gelfand, Kristofer J. James, Randy W. Westlund, Antonis Panteleon, Todd P. Goblish, Mark C. Lynn
  • Patent number: 10457016
    Abstract: A carbon-carbon composite preform including a plurality of layers including carbon fibers or carbon-precursor fibers, the layers include a first exterior layer defining a first major surface, a second exterior layer defining a second major surface, and at least one interior layer disposed between the first exterior layer and the second exterior layer, the at least one interior layer having a peripheral region that forms a portion of an outer surface of the preform. The preform includes needled fibers, where at least some needled fibers extend through two or more layers. The preform has an exterior region and a core region, where the exterior region includes at least the peripheral region of at least one interior layer. The needled fibers define a first needled fiber number density (NFND) in the exterior region and a second greater NFND in at least a portion of the core region.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 29, 2019
    Assignee: Honeywell International Inc.
    Inventors: Mark L. La Forest, Neil Murdie, Russell W. Johnson, Mark C. James
  • Publication number: 20170239911
    Abstract: A carbon-carbon composite preform including a plurality of layers including carbon fibers or carbon-precursor fibers, the layers include a first exterior layer defining a first major surface, a second exterior layer defining a second major surface, and at least one interior layer disposed between the first exterior layer and the second exterior layer, the at least one interior layer having a peripheral region that forms a portion of an outer surface of the preform. The preform includes needled fibers, where at least some needled fibers extend through two or more layers. The preform has an exterior region and a core region, where the exterior region includes at least the peripheral region of at least one interior layer. The needled fibers define a first needled fiber number density (NFND) in the exterior region and a second greater NFND in at least a portion of the core region.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 24, 2017
    Applicant: Honeywell International Inc.
    Inventors: Mark L. La Forest, Neil Murdie, Russell W. Johnson, Mark C. James
  • Patent number: 9193113
    Abstract: A pitch densification apparatus may be used to form a carbon-carbon composite material. The apparatus may be used to compress a carbon fiber material, and, thereafter, pitch densify the carbon fiber material. The compression and pitch densification of the carbon fiber material may be carried out within the same mold cavity of the pitch densification apparatus. In one example, an apparatus may comprise a mold defining a mold cavity that is configured to receive a material to be densified. The mold cavity is configured to be adjusted from a first volume to a second volume less than the first volume to compress the material in the mold cavity. The example apparatus may further comprise a gas source configured to apply a gas pressure in the mold cavity to force pitch into the material in the mold cavity to densify the material, and a vacuum source configured to create a vacuum pressure in the mold cavity at least prior to the application of the gas pressure.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: November 24, 2015
    Assignee: Honeywell International Inc.
    Inventors: Mark L. La Forest, Mark C. James, Roger L. Klinedinst, Neil Murdie, David M. Wright
  • Patent number: 9017761
    Abstract: Carbon-carbon composites made by needling together woven or nonwoven fabric made from carbon-containing fibers followed by carbonizing the fabric preforms are described. The carbon fiber preforms can be needled either in a carbonized or in an uncarbonized state. The uncarbonized fiber preforms would go through a carbonization/heat-treat step following the needling process. Final preform thickness and fiber volume is also controlled at carbonization, for instance by varying the level of pressure applied to the preforms during carbonization. For example, the preforms may be unconstrained during carbonization (i.e., no pressure is applied to them) or the preforms may be constrained during carbonization, typically by means for applying pressure (e.g., weight placed on top of the preforms).
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 28, 2015
    Assignee: Honeywell International Inc.
    Inventors: Mark L. La Forest, Neil Murdie, Mark C. James
  • Publication number: 20140327169
    Abstract: A pitch densification apparatus may be used to form a carbon-carbon composite material. The apparatus may be used to compress a carbon fiber material, and, thereafter, pitch densify the carbon fiber material. The compression and pitch densification of the carbon fiber material may be carried out within the same mold cavity of the pitch densification apparatus. In one example, an apparatus may comprise a mold defining a mold cavity that is configured to receive a material to be densified. The mold cavity is configured to be adjusted from a first volume to a second volume less than the first volume to compress the material in the mold cavity. The example apparatus may further comprise a gas source configured to apply a gas pressure in the mold cavity to force pitch into the material in the mold cavity to densify the material, and a vacuum source configured to create a vacuum pressure in the mold cavity at least prior to the application of the gas pressure.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Mark L. La Forest, Mark C. James, Roger L. Klinedinst, Neil Murdie, David M. Wright
  • Publication number: 20120153528
    Abstract: A pitch densification apparatus may be used to form a carbon-carbon composite material. The apparatus may be used to compress a carbon fiber material, and, thereafter, pitch densify the carbon fiber material. The compression and pitch densification of the carbon fiber material may be carried out within the same mold cavity of the pitch densification apparatus. In one example, an apparatus may comprise a mold defining a mold cavity that is configured to receive a material to be densified. The mold cavity is configured to be adjusted from a first volume to a second volume less than the first volume to compress the material in the mold cavity. The example apparatus may further comprise a gas source configured to apply a gas pressure in the mold cavity to force pitch into the material in the mold cavity to densify the material, and a vacuum source configured to create a vacuum pressure in the mold cavity at least prior to the application of the gas pressure.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Mark L. LaForest, Mark C. James, Roger L. Klinedinst, Neil Murdie, David M. Wright
  • Patent number: 8016571
    Abstract: A pump end assembly has a centrifugal pump and a motor separated by a chamber. The chamber contains a thrust bearing as well as an intake for the pump. Fluid flowing into the intake flows through the thrust chamber and to the inlet of the pump. Some of the fluid also flows through the thrust bearing for lubricating the thrust bearing.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: September 13, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Gary W. Speer, Terry W. Shafer, Mark C. James
  • Publication number: 20100293769
    Abstract: Carbon-carbon composites made by needling together woven or nonwoven fabric made from carbon-containing fibers followed by carbonizing the fabric preforms. The carbon fiber preforms can be needled either in a carbonized or in an uncarbonized state. The un-carbonized fiber preforms would go through a carbonization/heat-treat step following the needling process. Final preform thickness and fiber volume is also controlled at carbonization, for instance by varying the level of pressure applied to the preforms during carbonization. Thus, the preforms may be unconstrained during carbonization (i.e., no pressure is applied to them). Or the preforms may be constrained during carbonization, typically by means of applying pressure (e.g., weight placed on top of the preforms). The preforms are then infiltrated via CVD/CVI processing in order to increase their density, resulting in a carbon-carbon composite which is suitable for use as, for instance, a brake disc or pad in aircraft and automotive brake systems.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 25, 2010
    Inventors: Mark L. La Forest, Neil Murdie, Mark C. James
  • Patent number: 7686904
    Abstract: This invention generally pertains to self propagating high temperature synthesis or combustion synthesis as a way of bonding materials. The present invention provides methods and an apparatus for bonding, preferably carbon-carbon composite materials, by combustion synthesis. Generally, the invention involves providing at least two carbon-carbon composite parts to be bonded and interspersing a combustion synthesis material in between the parts with each part in contact with the combustion synthesis material. The combustion synthesis material is then ignited, which initiates the combustion synthesis reaction. Typically, a ceramic material is formed which immediately freezes, bonding the parts together.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: March 30, 2010
    Assignee: Honeywell International Inc.
    Inventors: Slawomir T. Fryska, Mark C. James, Mark L. LaForest, Allen H. Simpson, Barry P. Soos
  • Publication number: 20090035159
    Abstract: A pump end assembly has a centrifugal pump and a motor separated by a chamber. The chamber contains a thrust bearing as well as an intake for the pump. Fluid flowing into the intake flows through the thrust chamber and to the inlet of the pump. Some of the fluid also flows through the thrust bearing for lubricating the thrust bearing.
    Type: Application
    Filed: August 2, 2007
    Publication date: February 5, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Gary W. Speer, Terry W. Shafer, Mark C. James
  • Patent number: 7409997
    Abstract: A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump has zones of impellers and diffusers with the exit angles and geometry in the zones differing from the other zones. The exit angles decrease and geometry varies in a downstream direction to account for a lower viscosity occurring due to heat being generated in the pump. One design employs small diameter impellers and high rotational speeds.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: August 12, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Farral D. Gay, Mark C. James, Joseph E. Vandevier
  • Publication number: 20080093009
    Abstract: This invention generally pertains to self propagating high temperature synthesis or combustion synthesis as a way of bonding materials. The present invention provides methods and an apparatus for bonding, preferably carbon-carbon composite materials, by combustion synthesis. Generally, the invention involves providing at least two carbon-carbon composite parts to be bonded and interspersing a combustion synthesis material in between the parts with each part in contact with the combustion synthesis material. The combustion synthesis material is then ignited, which initiates the combustion synthesis reaction. Typically, a ceramic material is formed which immediately freezes, bonding the parts together.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Inventors: Slawomir T. Fryska, Mark C. James, Mark L. LaForest, Allen H. Simpson, Barry P. Soos
  • Publication number: 20080090064
    Abstract: Carbon-carbon composite material article and method of manufacturing it. The carbon-carbon composite material comprises a carbonized woven or nonwoven fabric-based preform which is subjected to rapid densification, e.g. using a resin transfer molding process, and which may subsequently be infiltrated with a ceramic additive solution in order to improve wear and friction properties. The method comprises densifying the preform and subsequently adding a ceramic additive to it to infiltrate the material with the additive and enhance the properties of the final product.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 17, 2008
    Inventors: Mark C. James, Neil Murdie, Michael D. Wood
  • Patent number: 6854517
    Abstract: A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump has zones of impellers and diffusers with the exit angles and geometry in the zones differing from the other zones. The exit angles decrease and geometry varies in a downstream direction to account for a lower viscosity occurring due to heat being generated in the pump. One design employs small diameter impellers and high rotational speeds.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: February 15, 2005
    Assignee: Baker Hughes Incorporated
    Inventors: Farral D. Gay, Mark C. James, Joseph E. Vandevier
  • Publication number: 20040074075
    Abstract: Carbon fiber brake preforms (20), specifically, annular discs built up of fabric arc segments (21) composed of continuous fibers (25) and staple fibers (26). Most of the continuous fibers (25) in the fabric segments (21) are arranged to be located within 60° of radially from th e inner diameter to the outer diameter of the annular disc (20). The fabric arc segments have substantially all of their continuous fibers oriented in the radial direction and parallel to the segment arc bisector, or the segments are arranged in alternating layers in which, respectively, half the continuous fibers are oriented at a +45 degree angle with respect to the segment arc bisector and half the continuous fibers are oriented at a −45 degree angle with respect thereto.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 22, 2004
    Inventors: Mark C. James, Terence B. Walker, Neil Murdie
  • Patent number: 6691393
    Abstract: Carbon fiber brake preforms (20), specifically, annular discs built up of fabric arc segments (21) composed of continuous fibers (25) and staple fibers (26). Most of the continuous fibers (25) in the fabric segments (21) are arranged to be located within 60° of radially from the inner diameter to the outer diameter of the annular disc (20). The fabric arc segments have substantially all of their continuous fibers oriented in the radial direction and parallel to the segment arc bisector, or the segments are arranged in alternating layers in which, respectively, half the continuous fibers are oriented at a +45 degree angle with respect to the segment arc bisector and half the continuous fibers are oriented at a −45 degree angle with respect thereto.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: February 17, 2004
    Assignee: Honeywell International Inc.
    Inventors: Mark C. James, Terence B. Walker, Neil Murdie
  • Publication number: 20030155128
    Abstract: A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump has zones of impellers and diffusers with the exit angles and geometry in the zones differing from the other zones. The exit angles decrease and geometry varies in a downstream direction to account for a lower viscosity occurring due to heat being generated in the pump. One design employs small diameter impellers and high rotational speeds.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 21, 2003
    Inventors: Farral D. Gay, Mark C. James, Joseph E. Vandevier
  • Publication number: 20020170787
    Abstract: Carbon fiber brake preforms (20), specifically, annular discs built up of fabric arc segments (21) composed of continuous fibers (25) and staple fibers (26). Most of the continuous fibers (25) in the fabric segments (21) are arranged to be located within 60° of radially from the inner diameter to the outer diameter of the annular disc (20). The fabric arc segments have substantially all of their continuous fibers oriented in the radial direction and parallel to the segment arc bisector, or the segments are arranged in alternating layers in which, respectively, half the continuous fibers are oriented at a +45 degree angle with respect to the segment arc bisector and half the continuous fibers are oriented at a −45 degree angle with respect thereto.
    Type: Application
    Filed: November 8, 2001
    Publication date: November 21, 2002
    Inventors: Mark C. James, Terence B. Walker, Neul Murdie
  • Patent number: 4781531
    Abstract: A centrifugal submersible pump has wear resistant features to resist erosion due to sand laden fluid from a well. The pump has a plurality of stages, each having a diffuser and an impeller located within a housing. The diffuser has a sleeve in its inner portion that has a flange on its upper end. The sleeve is a separate component from the remaining portions of the diffuser and harder. The impeller has a vane section and a hub. The hub is carried inside the sleeve. The hub has a flange that bears against the flange of the diffuser sleeve. The impeller hub is a separate component from the vane section of the impeller and is of a harder material.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: November 1, 1988
    Assignee: Hughes Tool Company
    Inventor: Mark C. James