Patents by Inventor Travis S. Johnson

Travis S. Johnson 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).

  • System and method implementing air shutoff position detection strategy
    Patent number: 8881762
    Abstract: An engine air shutoff valve system with an improved sensor that facilitates a position detection of the shutoff valve is disclosed. The air shutoff valve system may include a shutoff valve, an indicator, and at least one solid-state proximity sensor. The shutoff valve is moveable between an open and closed position. The indicator is operatively coupled to the shutoff valve. The indicator is movable between a normal state and a tripped state in respective correspondence with the open and closed positions of the shutoff valve. At least one solid-state proximity sensor can be configured to detect when the indicator is in the tripped state.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 11, 2014
    Assignee: Caterpillar Inc.
    Inventors: Travis S. Johnson, Matthew J. Miller, Michael E. Kenning, Jason M. Brown, Dale E. Koekenberg
  • SYSTEM AND METHOD IMPLEMENTING AIR SHUTOFF POSITION DETECTION STRATEGY
    Publication number: 20130000730
    Abstract: An engine air shutoff valve system with an improved sensor that facilitates a position detection of the shutoff valve is disclosed. The air shutoff valve system may include a shutoff valve, an indicator, and at least one solid-state proximity sensor. The shutoff valve is moveable between an open and closed position. The indicator is operatively coupled to the shutoff valve. The indicator is movable between a normal state and a tripped state in respective correspondence with the open and closed positions of the shutoff valve. At least one solid-state proximity sensor can be configured to detect when the indicator is in the tripped state.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: Caterpillar Inc.
    Inventors: Travis S. Johnson, Matthew J. Miller, Michael E. Kenning, Jason M. Brown, Dale E. Koekenberg
  • Engine system having cooled and heated inlet air
    Patent number: 8037872
    Abstract: A thermal management system for an engine is disclosed. The thermal management system may have a first heat exchanger situated to cool air directed into the engine, a pump configured to pressurize a fluid directed through the engine, and a second heat exchanger situated to transfer heat absorbed by the fluid to air directed into the engine. The thermal management system may also have a heater configured to provide supplemental heat to air directed into the engine.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: October 18, 2011
    Assignee: Caterpillar Inc.
    Inventors: Dennis P. Holler, Travis S. Johnson, Matthew R. Hulen, Randall J. Anliker, Michael W. Edwards, Larry L. Spurgeon, Victor L. Sheldon, Jr.
  • Engine system having dedicated thermal management system
    Patent number: 7886705
    Abstract: A thermal management system for an engine is disclosed. The thermal management system may have a first hydraulic circuit configured to circulate a fluid through the engine. The thermal management system may also have a second hydraulic circuit pressurized by the engine to heat the fluid during operation of the engine.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: February 15, 2011
    Assignee: Caterpillar Inc.
    Inventors: Dennis P. Holler, Scott D. Vollmer, Travis S. Johnson, Sudhakar R. Kakani, Matthew R. Hulen, Randall J. Anliker, Michael W. Edwards, Larry L. Spurgeon, Victor L. Sheldon, Jr., Robert C. Horst
  • Engine system having dedicated thermal management system
    Publication number: 20080295791
    Abstract: A thermal management system for an engine is disclosed. The thermal management system may have a first hydraulic circuit configured to circulate a fluid through the engine. The thermal management system may also have a second hydraulic circuit pressurized by the engine to heat the fluid during operation of the engine.
    Type: Application
    Filed: February 7, 2008
    Publication date: December 4, 2008
    Inventors: Dennis P. Holler, Scott D. Vollmer, Travis S. Johnson, Sudhakar R. Kakani, Matthew R. Hulen, Randall J. Anliker, Michael W. Edwards, Larry L. Spurgeon, Victor L. Sheldon, JR., Robert C. Horst
  • Engine system having cooled and heated inlet air
    Publication number: 20080295811
    Abstract: A thermal management system for an engine is disclosed. The thermal management system may have a first heat exchanger situated to cool air directed into the engine, a pump configured to pressurize a fluid directed through the engine, and a second heat exchanger situated to transfer heat absorbed by the fluid to air directed into the engine. The thermal management system may also have a heater configured to provide supplemental heat to air directed into the engine.
    Type: Application
    Filed: February 7, 2008
    Publication date: December 4, 2008
    Inventors: Dennis P. Holler, Travis S. Johnson, Matthew R. Hulen, Randall J. Anliker, Michael W. Edwards, Larry L. Spurgeon, Victor L. Sheldon, JR.