Patents by Inventor Andrew W Fraser

Andrew W Fraser 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).

  • Extended reach fluidic oscillator
    Patent number: 10753154
    Abstract: A fluidic oscillator includes a vortex chamber in fluid communication with a flow volume, an outlet, a first control port, and a second control port. The flow volume is defined by a first wall and a second wall. The first wall and the second wall are arranged to direct a fluid flow to create a vortex flow in the vortex chamber. The pressure differential cycles the attachment of fluid flow between the first wall and the second wall at a cycle rate. Because the fluidic oscillator can operate at a low cycle rate, the fluidic oscillator can provide an extended reach.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 25, 2020
    Assignee: Tempress Technologies, Inc.
    Inventors: Jack J Kolle, Scott A Fletcher, Andrew W Fraser