Patents by Inventor by Gladys S. Cordis, executrix

by Gladys S. Cordis, executrix 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).

  • Self-metering dual proportioner
    Patent number: 4004602
    Abstract: There is here disclosed an apparatus for proportioning and blending a metered quantity of a first fluid, which provides the pumping power, with second fluids, the apparatus including an hydraulic motor, slave pump means having tandem pistons, and dual check valve assemblies associated with the slave pistons.
    Type: Grant
    Filed: June 11, 1973
    Date of Patent: January 25, 1977
    Assignees: Carl F. Jensen, Gerald T. Dobie
    Inventors: Nat Cordis, deceased, by Gladys S. Cordis, executrix