Patents by Inventor Michael R. Hart

Michael R. Hart 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: 20240287390
    Abstract: A process where a liquid or supercritical CO2 co-solvent is used in a hydrothermal liquefaction (HTL) process. The process improves yield of the HTL process.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 29, 2024
    Inventors: Alan H. Zacher, Lisa A. Smith-Middleton, Todd R. Hart, Andrew J. Schmidt, Michael R. Thorson, Samuel P. Fox, Dylan J. Cronin
  • Patent number: 12036620
    Abstract: A tile saw comprising a base, a table supported by the base and configured to support a workpiece, a guide rail upon which the table is supported and moveable along a longitudinal axis, a saw unit coupled to the base, and a roller assembly for supporting the table upon the guide rail. The roller assembly includes a first roller rotatably supported by the table and engaged with a first portion of the guide rail, and a second roller rotatably supported by the table and engaged with a second portion of the guide rail that is different than the first portion. The second roller is translatable relative to the table in a direction toward the guide rail. The roller assembly further includes a spring biasing the second roller toward the guide rail.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: July 16, 2024
    Assignee: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
    Inventors: Michael R. Hart, Sumithra Janardhanan
  • Patent number: 11628587
    Abstract: A powered saw assembly includes a base having a top surface, a column fixed to the top surface, and a guide rail supported above the top surface. The assembly includes a saw unit translatable along the guide rail, the saw unit including a rotating arbor to which a saw blade is attachable for co-rotation therewith. A blade guard at least partially surrounds the saw blade and defines an opening through which the saw blade is movable for attaching or removing the saw blade relative to the arbor. A cover is movably coupled to the blade guard to selectively close the opening. With the cover moved away from the blade guard to expose the opening, the saw blade is attachable or removable relative to the arbor through the opening without passing the saw blade through the slot.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: April 18, 2023
    Assignee: TECHTRONIC CORDLESS GP
    Inventors: Andrew Kinnison, Charles Moody Wacker, II, Michael R. Hart, Alejandro Gilson, Steven P. Hoppa
  • Patent number: 11554517
    Abstract: A tile saw includes a saw unit having a motor and a saw blade driven by the motor, a table through which the saw blade at least partially protrudes, and a pan positioned underneath the table and including a channel configured to receive at least a portion of the saw blade. The channel extends along a longitudinal axis perpendicular to a rotational axis of the saw blade such that fluid moves through the channel in a first direction in response to rotation of the saw blade. An interior wall is positioned adjacent the channel. The interior wall is obliquely oriented relative to the longitudinal axis of the channel to redirect the fluid in a second direction that is different from the first direction.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 17, 2023
    Assignee: Techtronic Power Tools Technology Limited
    Inventors: Michael R. Hart, David E. Dutterer
  • Publication number: 20220331888
    Abstract: A tile saw comprising a base, a table supported by the base and configured to support a workpiece, a guide rail upon which the table is supported and moveable along a longitudinal axis, a saw unit coupled to the base, and a roller assembly for supporting the table upon the guide rail. The roller assembly includes a first roller rotatably supported by the table and engaged with a first portion of the guide rail, and a second roller rotatably supported by the table and engaged with a second portion of the guide rail that is different than the first portion. The second roller is translatable relative to the table in a direction toward the guide rail. The roller assembly further includes a spring biasing the second roller toward the guide rail.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Inventors: Michael R. Hart, Sumithra Janardhanan
  • Patent number: 11433464
    Abstract: A tile saw includes a table configured to support a workpiece, a guide rail upon which the table is supported and movable along a longitudinal axis, a saw unit for cutting the workpiece as the table moves along the longitudinal axis, and a roller assembly for coupling the table to the guide rail. The roller assembly includes an upper roller engaged with an upper portion of the guide rail, a lower roller engaged with a lower portion of the guide rail, and a resilient member biasing at least one of the upper roller or the lower roller against the guide rail.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 6, 2022
    Inventors: Michael R. Hart, Sumithra Janardhanan
  • Publication number: 20220266470
    Abstract: A powered saw assembly includes a base having a top surface, a column fixed to the top surface, and a guide rail supported above the top surface. The assembly includes a saw unit translatable along the guide rail, the saw unit including a rotating arbor to which a saw blade is attachable for co-rotation therewith. A blade guard at least partially surrounds the saw blade and defines an opening through which the saw blade is movable for attaching or removing the saw blade relative to the arbor. A cover is movably coupled to the blade guard to selectively close the opening. With the cover moved away from the blade guard to expose the opening, the saw blade is attachable or removable relative to the arbor through the opening without passing the saw blade through the slot.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 25, 2022
    Inventors: Andrew Kinnison, Charles Moody Wacker, II, Michael R. Hart, Alejandro Gilson, Steven P. Hoppa
  • Publication number: 20200070264
    Abstract: A tile saw includes a table configured to support a workpiece, a guide rail upon which the table is supported and movable along a longitudinal axis, a saw unit for cutting the workpiece as the table moves along the longitudinal axis, and a roller assembly for coupling the table to the guide rail. The roller assembly includes an upper roller engaged with an upper portion of the guide rail, a lower roller engaged with a lower portion of the guide rail, and a resilient member biasing at least one of the upper roller or the lower roller against the guide rail.
    Type: Application
    Filed: August 28, 2018
    Publication date: March 5, 2020
    Inventors: Michael R. Hart, Sumithra Janardhanan
  • Patent number: 10493542
    Abstract: A miter saw includes a base having a peripheral wall, a table rotatably supported upon the base, and a miter angle lock. The miter angle lock includes a pin having a first end adjacent the peripheral wall and an opposite second end. The miter angle lock also includes a cam member engageable with the second end of the pin and movable between a locked position in which the first end of the pin is brought into frictional contact with the peripheral wall for locking the table relative to the base, and an unlocked position in which the first end of the pin is spaced from the peripheral wall of the base.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: December 3, 2019
    Assignee: TTI (MACAO COMMERICAL OFFSHORE) LIMITED
    Inventors: Mingting Wu, David E. Dutterer, Michael R. Hart
  • Publication number: 20190184604
    Abstract: A tile saw includes a saw unit having a motor and a saw blade driven by the motor, a table through which the saw blade at least partially protrudes, and a pan positioned underneath the table and including a channel configured to receive at least a portion of the saw blade. The channel extends along a longitudinal axis perpendicular to a rotational axis of the saw blade such that fluid moves through the channel in a first direction in response to rotation of the saw blade. An interior wall is positioned adjacent the channel. The interior wall is obliquely oriented relative to the longitudinal axis of the channel to redirect the fluid in a second direction that is different from the first direction.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventors: Michael R. Hart, David E. Dutterer
  • Patent number: 10252444
    Abstract: A tile saw includes a saw unit having a motor and a saw blade driven by the motor, a table through which the saw blade at least partially protrudes, and a pan positioned underneath the table and including an interior cavity configured to hold a fluid. The interior cavity is defined by a floor and at least one side wall of the pan. The tile saw also includes a first interior wall that extends upward from the floor of the pan and a second interior wall that extends upward from the floor of the pan. The second interior wall is spaced apart from the first interior wall to define a channel into which the saw blade extends.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: April 9, 2019
    Assignee: TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
    Inventors: Michael R. Hart, David E. Dutterer
  • Publication number: 20180297238
    Abstract: A tile saw includes a saw unit having a motor and a saw blade driven by the motor, a table through which the saw blade at least partially protrudes, and a pan positioned underneath the table and including an interior cavity configured to hold a fluid. The interior cavity is defined by a floor and at least one side wall of the pan. The tile saw also includes a first interior wall that extends upward from the floor of the pan and a second interior wall that extends upward from the floor of the pan. The second interior wall is spaced apart from the first interior wall to define a channel into which the saw blade extends.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 18, 2018
    Inventors: Michael R. Hart, David E. Dutterer