Patents by Inventor Kris William Johnson

Kris William 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).

  • Single-loop cooling system having dual radiators
    Publication number: 20090000779
    Abstract: A cooling system for use with a heat source is disclosed. The cooling system has an oil cooler, a fluid pump driving fluid through the cooling system, a first heat exchanger, and a first bypass line to direct fluid around the first heat exchanger. The cooling system also has a first electrically-controlled valve to selectively direct at least a portion of the fluid to at least one of the first heat exchanger and the first bypass line based on a fluid temperature. The cooling system further has a second heat exchanger, and a second bypass line to direct fluid around the second heat exchanger. The cooling system additionally has a second electrically-controlled valve located upstream of the oil cooler and configured to selectively direct at least a portion of the fluid to at least one of the second heat exchanger and the second bypass line based on an oil temperature.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Christopher Dale Hickam, Timothy Alan Evans, Kris William Johnson, Kranthi Kumar Kothamachu, Larry Michael Slone
  • Fluid delivery control system
    Patent number: 7055486
    Abstract: A method of controlling the delivery of fluid to an engine includes receiving a fuel flow rate signal. An electric pump is arranged to deliver fluid to the engine. The speed of the electric pump is controlled based on the fuel flow rate signal.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 6, 2006
    Assignee: Caterpillar Inc.
    Inventors: Brian D. Hoff, Kris William Johnson, Marcelo C. Algrain, Sivaprasad Akasam
  • Fluid delivery control system
    Publication number: 20040187835
    Abstract: A method of controlling the delivery of fluid to an engine includes receiving a fuel flow rate signal. An electric pump is arranged to deliver fluid to the engine. The speed of the electric pump is controlled based on the fuel flow rate signal.
    Type: Application
    Filed: December 23, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar Inc.
    Inventors: Brian D. Hoff, Kris William Johnson, Marcelo C. Algrain, Sivaprasad Akasam