Patents by Inventor Stuart William Olson

Stuart William Olson 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).

  • Liquid proportioning device
    Patent number: 4068681
    Abstract: The Improved Liquid Proportioning Device of this invention comprises a combination of all the features of the liquid proportioning device set forth in Applicant's prior U.S. Pat. No. 2,856,234 with the addition of a closure device including air vent means equipped with a float valve. The air vent may, in one embodiment work in combination with a flow-diverting conduit, where closure means are provided for the air vent and the flow-diverting conduit.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: January 17, 1978
    Assignee: Hydro Mix, Inc.
    Inventors: Hugh Noel McNair, Stuart William Olson