Patents by Inventor Darrell E. Helton

Darrell E. Helton 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).

  • Patent number: 9000905
    Abstract: A fuel system for an engine includes a fuel line that delivers fuel from a main fuel tank to the engine and a first control device that releases a flow of the fuel from the main fuel tank into the fuel line. An auxiliary fuel tank is connected to the fuel line, and a second control device controls a flow of the fuel between the auxiliary fuel tank and the fuel line. After the fuel is released from the main fuel tank into the fuel line, the second control device fills the auxiliary fuel tank with the fuel from the main fuel tank.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: April 7, 2015
    Assignee: NMHG Oregon, LLC
    Inventors: Lonnie R. Oxley, Darrell E. Helton, David S. Billings, Jeffrey G. Stephenson
  • Publication number: 20110226362
    Abstract: A fuel system for an engine includes a fuel line that delivers fuel from a main fuel tank to the engine and a first control device that releases a flow of the fuel from the main fuel tank into the fuel line. An auxiliary fuel tank is connected to the fuel line, and a second control device controls a flow of the fuel between the auxiliary fuel tank and the fuel line. After the fuel is released from the main fuel tank into the fuel line, the second control device fills the auxiliary fuel tank with the fuel from the main fuel tank.
    Type: Application
    Filed: March 29, 2011
    Publication date: September 22, 2011
    Applicant: NMHG Oregon, LLC
    Inventors: Lonnie R. OXLEY, Darrell E. HELTON, David S. BILLINGS, Jeffrey G. STEPHENSON
  • Patent number: 7940165
    Abstract: The low fuel warning system includes a fuel line configured to transport fuel between an inlet port and an outlet port and a reservoir located intermediate to the inlet port and the outlet port, wherein the reservoir is configured to collect the fuel in a liquid state. The low fuel warning system further includes a fuel sensor located adjacent the reservoir and configured to detect the liquid state of the fuel and a processor in communication with the fuel sensor. The processor is configured to monitor a low fuel condition in the fuel line according to information received from the fuel sensor.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: May 10, 2011
    Assignee: NMHG Oregon, LLC
    Inventors: Lonnie R. Oxley, Darrell E. Helton, David S. Billings, Ashwani K. Bansal, Jeffrey G. Stephenson