Patents by Inventor Mark T. Holtzapple

Mark T. Holtzapple 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).

  • Publication number: 20150211788
    Abstract: A system and method for liquefying gas are provided. The method includes combining an input gas and a first recycle stream to form a first blended stream, and producing a cooled first blended stream and a heated second blended stream by passing the first blended stream and a second blended stream through a heat exchanger. The method also includes producing a mixture of gas and liquefied gas from the cooled first blended stream using a first expander, and producing the liquefied gas at an outlet. The method further includes producing a second recycle stream from the gas from the output of the first expander using a first compressor, and combining the second recycle stream and a third recycle stream to form the second blended stream. The method still further includes producing the first recycle stream from the heated second blended stream using a second compressor, and producing the third recycle stream from the first recycle stream using a second expander.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 30, 2015
    Applicant: STARROTOR CORPORATION
    Inventor: Mark T. Holtzapple
  • Publication number: 20150152732
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 4, 2015
    Inventors: Mark T. Holtzapple, George A. Rabroker, Michael Kyle Ross
  • Patent number: 8905735
    Abstract: According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 9, 2014
    Assignees: The Texas A&M University System, StarRotor Corportion
    Inventors: Mark T. Holtzapple, Andrew Rabroker, Michael Kyle Ross, Steven D. Atmur, Gary P. Noyes
  • Publication number: 20140348683
    Abstract: According to one embodiment of the invention, a gerotor apparatus includes a first gerotor, a second gerotor, and a synchronizing system operable to synchronize a rotation of the first gerotor with a rotation of the second gerotor. The synchronizing system includes a cam plate coupled to the first gerotor, wherein the cam plate includes a plurality of cams, and an alignment plate coupled to the second gerotor. The alignment plate includes at least one alignment member, wherein the plurality of cams and the at least one alignment member interact to synchronize a rotation of the first gerotor with a rotation of the second gerotor.
    Type: Application
    Filed: June 16, 2014
    Publication date: November 27, 2014
    Inventors: Mark T. Holtzapple, George A. Rabroker, Michael K. Ross
  • Publication number: 20140308147
    Abstract: According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus operable to control the rotation of the inner gerotor relative to the outer gerotor. The inner gerotor includes one or more entrance passages operable to communicate a lubricant into the outer gerotor chamber.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 16, 2014
    Inventors: Mark T. Holtzapple, George A. Rabroker
  • Patent number: 8821138
    Abstract: According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus operable to control the rotation of the inner gerotor relative to the outer gerotor. The inner gerotor includes one or more entrance passages operable to communicate a lubricant into the outer gerotor chamber.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: September 2, 2014
    Assignee: The Texas A&M University System
    Inventors: Mark T. Holtzapple, George A. Rabroker
  • Patent number: 8765429
    Abstract: Methods and apparatus for treating biomass that may include introducing a biomass to a chamber; exposing the biomass in the chamber to a shock event to produce a shocked biomass; and transferring the shocked biomass from the chamber. In some aspects, the method may include pretreating the biomass with a chemical before introducing the biomass to the chamber and/or after transferring shocked biomass from the chamber.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: July 1, 2014
    Assignee: The Texas A & M University System
    Inventors: Mark T. Holtzapple, Maxine Jones Madison, Rocio Sierra Ramirez, Mark A Deimund, Matthew Falls, John J. Dunkleman
  • Patent number: 8753099
    Abstract: According to one embodiment of the invention, a gerotor apparatus includes a first gerotor, a second gerotor, and a synchronizing system operable to synchronize a rotation of the first gerotor with a rotation of the second gerotor. The synchronizing system includes a earn plate coupled to the first gerotor, wherein the cam plate includes a plurality of cams, and an alignment plate coupled to the second gerotor. The alignment plate includes at least one alignment member, wherein the plurality of cams and the at least one alignment member interact to synchronize a rotation of the first gerotor with a rotation of the second gerotor.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 17, 2014
    Assignees: The Texas A&M University System, Starrotor Corporation
    Inventors: Mark T. Holtzapple, George A. Rabroker, Michael K. Ross
  • Publication number: 20130263861
    Abstract: An embodiment of the disclosure provides a universal sealing apparatus for one or more cannulas. The apparatus includes a first portion, a second portion, and a third portion. The first and second portions are configured to removably adhere directly or indirectly to a nose. The third portion is coupled to the first and second portions. The third portion removably couples to one or more cannulas and places a force upon a base of flared portions of the one or more cannulas when the first and second portions are adhered to the nose. The force maintains a fluid seal of the one or more cannulas within one or more respective nostrils of the nose.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 10, 2013
    Inventors: Mark T. Holtzapple, Lisa Cangelosi Brown
  • Patent number: 8519206
    Abstract: A method of producing hydrocarbons from biomass that includes converting at least a portion of the biomass into a first product having at least one of a carboxylic acid, a ketone, an ammonium carboxylate salt, and combinations thereof; converting at least a portion of the first product into an alcohol; reacting at least some of the alcohol in an oligomerization reactor as part of a process that produces an oligomerization product.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 27, 2013
    Assignees: The Texas A&M University Systems, EE-Terrabon Biofuels LLC
    Inventors: Mark T. Holtzapple, Cesar B. Granda, Sebastian Taco, Michael Kyle Ross, Gary Luce, John A. Spencer, Rae L. Spencer
  • Patent number: 8410321
    Abstract: A method of producing alcohols, hydrocarbons, or both from biomass, the method including converting biomass into a carboxylic acid; reacting the carboxylic acid with an olefin to produce an ester; and hydrogenolyzing the ester to produce alcohol. The steps of reacting the carboxylic acid with an olefin to produce an ester, and hydrogenolyzing the ester to produce an alcohol, may both be carried out in the same reactor.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 2, 2013
    Assignee: EE-Terrabon Biofuels LLC
    Inventors: Mark T. Holtzapple, Cesar B. Granda, Sebastian Taco, Michael Kyle Ross, Gary Luce, John A. Spencer, Rae L. Spencer
  • Publication number: 20120264184
    Abstract: A method of producing alcohols, hydrocarbons, or both from biomass, the method including converting biomass into a carboxylic acid; reacting the carboxylic acid with an olefin to produce an ester; and hydrogenolyzing the ester to produce alcohol. The steps of reacting the carboxylic acid with an olefin to produce an ester, and hydrogenolyzing the ester to produce an alcohol, may both be carried out in the same reactor.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 18, 2012
    Applicants: Terrabon, Inc., The Texas A&M University System
    Inventors: Michael Kyle Ross, Gary Luce, John Spencer, Rae Spencer, Mark T. Holtzapple, Cesar B. Granda, Sebastian Taco Vasquez
  • Publication number: 20120258508
    Abstract: A method of producing hydrocarbons from biomass that includes converting at least a portion of the biomass into a first product having at least one of a carboxylic acid, a ketone, an ammonium carboxylate salt, and combinations thereof; converting at least a portion of the first product into an alcohol; reacting at least some of the alcohol in an oligomerization reactor as part of a process that produces an oligomerization product.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Applicants: Terrabon, Inc., THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Michael Kyle Ross, Gary Luce, John Spencer, Rae Spencer, Mark T. Holtzapple, Cesar B. Granda, Sebastian Taco-Vasquez
  • Publication number: 20120252070
    Abstract: Methods and apparatus for treating biomass that may include introducing a biomass to a chamber; exposing the biomass in the chamber to a shock event to produce a shocked biomass; and transferring the shocked biomass from the chamber. In some aspects, the method may include pretreating the biomass with a chemical before introducing the biomass to the chamber and/or after transferring shocked biomass from the chamber.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Applicant: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Mark T. HOLTZAPPLE, Maxine Jones MADISON, Rocio Sierra RAMIREZ, Mark A. DEIMUND, Matthew FALLS, John J. DUNKLEMAN
  • Publication number: 20120225460
    Abstract: A method for processing biomass that includes forming a first pile comprising biomass; inoculating said first pile comprising biomass; circulating a liquid in said first pile; fermenting the biomass in said first pile to produce a carboxylate salt; and extracting at least a portion of the liquid in the first pile and passing said portion of liquid to a second pile comprising biomass, wherein said second pile is operating at a higher carboxylate salt concentration than said first pile.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Applicant: The Texas A&M University System
    Inventors: Mark T. Holtzapple, Richard Davison, Cesar Granda, Gary P. Noyes, Edward Darlington, III
  • Publication number: 20120199534
    Abstract: In accordance with particular embodiments, a desalination system includes a plurality of evaporators. The plurality of evaporators includes at least a first evaporator and a last evaporator. The plurality of evaporators are arranged in cascading fashion such that a concentration of salt in a brine solution increases as the brine solution passes through the plurality of evaporators from the first evaporator towards the last evaporator. The desalination system also includes a plurality of heat exchangers. An input of each evaporator is coupled to at least one of the plurality of heat exchangers. The system also includes a vapor source coupled to at least one of the plurality of evaporators.
    Type: Application
    Filed: August 17, 2011
    Publication date: August 9, 2012
    Applicants: TERRABON ADVE, LLC, The Texas A&M University System
    Inventors: Mark T. Holtzapple, George A. Rabroker, Li Zhu, Jorge H.J. Lara Ruiz, Somsak Watanawanavet
  • Patent number: 8232440
    Abstract: A method of producing alcohols, hydrocarbons, or both from biomass by converting biomass into a carboxylic acid, reacting the carboxylic acid with an olefin to produce an ester and hydrogenolyzing the ester to produce alcohol. A method of producing hydrocarbons from biomass by converting at least a portion of the biomass into a carboxylic acid, a ketone, or an ammonium carboxylate salt, reacting at least one of a portion of the carboxylic acid, a portion of the ketone, or a portion of the ammonium carboxylate salt in an oligomerization reactor as at least part of a process that produces an oligomerization product and separating hydrocarbons from the oligomerization product.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 31, 2012
    Assignees: The Texas A&M University System, Terrabon Mix-Alco, LLC
    Inventors: Mark T. Holtzapple, Cesar B. Granda, Sebastian Taco-Vasquez, Michael Kyle Ross, Gary Luce, John A. Spencer, Rae L. Spencer
  • Publication number: 20120133241
    Abstract: According to one embodiment of the present invention, an electric machine includes a stator and a rotor. The stator includes a stator pole including a first leg and a second leg, and a gap defined between the first and second legs. The rotor includes a rotor pole. The rotor is configured to rotate relative to the stator such that the rotor pole rotates through the gap defined between the first and second legs of the stator pole. The stator pole includes a laminar stator pole structure including multiple lamination layers.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 31, 2012
    Inventors: Mark T. Holtzapple, George A. Rabroker
  • Publication number: 20120118722
    Abstract: Herein disclosed is a heat exchanger. The heat exchanger comprises at least one pipe having a centerline, an inlet and an outlet; and a multiplicity of tubes, wherein each tube comprises a centerline, an inner surface, an outer surface, and groves; wherein the multiplicity of tubes are placed inside the pipe and the centerline of each tube is perpendicular to the centerline of the pipe. Herein also disclosed is a heat exchange system. Such a system comprises the heat exchanger as described herein, wherein the heat exchanger is configured to receive an incoming feed stream and to discharge a vapor stream. Herein also described is a process that utilizes the heat exchanger disclosed herein. Such a process comprises the separation of a volatile component from a non-volatile component in a mixture. In some cases, the non-volatile component comprises a salt or a sugar and the volatile component comprises water.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 17, 2012
    Inventors: Mark T. HOLTZAPPLE, Jorge R. Lara
  • Patent number: 8153850
    Abstract: According to an embodiment, a biomass conversion subsystem produces methane and/or alcohol and residual biomass. A pyrolysis or a gasification subsystem is used to produce thermal energy and/or process gasses. The thermal energy may be stored thermal energy in the form of a pyrolysis oil. A fuel conversion subsystem produces liquid hydrocarbon fuels from the methane and/or alcohol using thermal energy and/or process gasses produced by the gasification or pyrolysis subsystem. Because the biomass production system integrates the residual products from biomass conversion and the residual thermal energy from pyrolysis or gasification, the overall efficiency of the integrated biomass production system is greatly enhanced.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: April 10, 2012
    Assignee: The Texas A&M University System
    Inventors: Kenneth R. Hall, Mark T. Holtzapple, Sergio C. Capareda