Patents by Inventor Paul Grisley

Paul Grisley 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).

  • Air supported conveyor with multipressure plenum system
    Patent number: 6966430
    Abstract: A multipressure plenum system for supporting a conveyor belt of a gas supported belt conveyor and method of operation. The multipressure plenum system includes a multipressure plenum having a support surface including a plurality of apertures and a chamber in fluid communication with the apertures. The chamber of the plenum is in selective fluid communication with a first source of gas at a first pressure, and is in selective fluid communication with a second source of gas at a second pressure. Gas from the first source of gas at the first pressure flows through the apertures in the plenum to form a gas cushion which supports the conveyor belt above the plenum. Gas from the second source of gas at the second pressure selectively flows through the apertures in the plenum to provide additional support to the conveyor belt.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 22, 2005
    Assignee: Martin Engineering Company
    Inventors: R. Todd Swinderman, Gary D. Swearingen, James A. Hicks, Paul Grisley
  • Air supported conveyor with multipressure plenum system
    Publication number: 20040118661
    Abstract: A multipressure plenum system for supporting a conveyor belt of a gas supported belt conveyor and method of operation. The multipressure plenum system includes a multipressure plenum having a support surface including a plurality of apertures and a chamber in fluid communication with the apertures. The chamber of the plenum is in selective fluid communication with a first source of gas at a first pressure, and is in selective fluid communication with a second source of gas at a second pressure. Gas from the first source of gas at the first pressure flows through the apertures in the plenum to form a gas cushion which supports the conveyor belt above the plenum. Gas from the second source of gas at the second pressure selectively flows through the apertures in the plenum to provide additional support to the conveyor belt.
    Type: Application
    Filed: September 26, 2003
    Publication date: June 24, 2004
    Inventors: R. Todd Swinderman, Gary D. Swearingen, James A. Hicks, Paul Grisley