Patents by Inventor Glenn Kline Walker

Glenn Kline Walker 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).

  • Vapor recovery line diagnostics
    Patent number: 6360789
    Abstract: A vapor recovery line monitor, a fuel dispenser, and fuel dispensing system are provided. In accordance with one embodiment of the present invention, a vapor recovery line monitor is provided comprising a fuel dispensing and vapor recovery hose, a pressure sensing passage, and a pressure transducer. The fuel dispensing and vapor recovery hose defines a fuel dispensing passage and a vapor recovery passage. The pressure sensing passage defines a pressure sensing orifice. The pressure sensing orifice is positioned within the vapor recovery passage. The pressure transducer is coupled to the pressure sensing passage and is configured to provide an indication of pressure at the pressure sensing orifice. Pressure data may be processed and compared to predetermined thresholds to trigger a vapor return line blockage signal. A controller may also be configured to shut down all or part of the system when a blockage signal is generated.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: March 26, 2002
    Assignee: Vapor Systems Technologies, Inc.
    Inventors: Glenn Kline Walker, Rodger P. Grantham
  • Vapor recovery line diagnostics
    Publication number: 20010029997
    Abstract: A vapor recovery line monitor, a fuel dispenser, and fuel dispensing system are provided. In accordance with one embodiment of the present invention, a vapor recovery line monitor is provided comprising a fuel dispensing and vapor recovery hose, a pressure sensing passage, and a pressure transducer. The fuel dispensing and vapor recovery hose defines a fuel dispensing passage and a vapor recovery passage. The pressure sensing passage defines a pressure sensing orifice. The pressure sensing orifice is positioned within the vapor recovery passage. The pressure transducer is coupled to the pressure sensing passage and is configured to provide an indication of pressure at the pressure sensing orifice. Pressure data may be processed and compared to predetermined thresholds to trigger a vapor return line blockage signal. A controller may also be configured to shut down all or part of the system when a blockage signal is generated.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 18, 2001
    Inventors: Glenn Kline Walker, Rodger P. Grantham