Patents by Inventor David R. Berta

David R. Berta 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).

  • Engine cooling system
    Patent number: 6609484
    Abstract: An engine cooling system for a work machine or the like having an engine with a turbocharger and an aftercooler. A separate circuit aftercooler cooling circuit is provided. A radiator assembly includes a first group of radiator cores and a second group of radiator cores. Some coolant cooled in the first group of radiator cores is passed from the radiator assembly to an engine cooling circuit. Another portion of coolant cooled in the first group of radiator cores is passed to the second group of radiator cores, for additional cooling thereof. From the second group of radiator cores, coolant is passed to the separate circuit aftercooler cooling circuit.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 26, 2003
    Assignee: Caterpillar Inc
    Inventors: Aubery W. Penn, David R. Berta, Terry L. Schaffer
  • ENGINE COOLING SYSTEM
    Publication number: 20030106502
    Abstract: An engine cooling system for a work machine or the like having an engine with a turbocharger and an aftercooler. A separate circuit aftercooler cooling circuit is provided. A radiator assembly includes a first group of radiator cores and a second group of radiator cores. Some coolant cooled in the first group of radiator cores is passed from the radiator assembly to an engine cooling circuit. Another portion of coolant cooled in the first group of radiator cores is passed to the second group of radiator cores, for additional cooling thereof. From the second group of radiator cores, coolant is passed to the separate circuit aftercooler cooling circuit.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 12, 2003
    Inventors: Aubery W. Penn, David R. Berta, Terry L. Schaffer