Patents by Inventor Robert H. Cox

Robert H. Cox 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).

  • Pressure and fluid flow activated, simplified proportioning system
    Patent number: 4388184
    Abstract: Continuously operating batch system for proportioning concentrate for blood treatment through the use of a proportioning tank and means for filling and emptying the same dependent upon pressure and flow in the mixing tank.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: June 14, 1983
    Inventors: Donald Brous, Robert H. Cox
  • Dispensing brush
    Patent number: 4143982
    Abstract: A dispensing brush for discrete material e.g. powder comprising a bristle tray having an outstanding rim and a bottom having longitudinal interrupted slots therein; slidingly attached thereto within the tray there is a powder container having a bottom with cross slots therein; said cross slots being alignable with the slots in the tray member or misaligned therewith for applying powder, i.e. to the body e.g. of an animal while at the same time brushing the animal's fur.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: March 13, 1979
    Inventors: Robert H. Cox, Jack W. Kaufman