Patents by Inventor Roger C. Funk

Roger C. Funk 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).

  • Flow volume proportioning system
    Patent number: 4529000
    Abstract: A volume proportioning system includes a pressurized supply of a primary carrier liquid, one or more sources of concentrate, a proportioning interconnection between the carrier liquid and the sources of concentrate by which the proportions are controlled regardless of the flow rate or pressure of the carrier liquid, in which the carrier liquid also provides the motive power for moving the concentrate and the carrier liquid itself to an operator controlled discharge point, the discharge being infinitely variable under the control of an operator.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: July 16, 1985
    Assignee: Davey Tree Expert Company
    Inventor: Roger C. Funk