Patents by Inventor Peter R. Gribble

Peter R. Gribble 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).

  • Patent number: 3941315
    Abstract: In an extrusion process for making powder paints from a series of batch blend units comprising resinous binders and pigmentary solids, interbatch contamination can be suppressed by using a same first portable (hopper) vessel for transporting, temporarily storing, and feeding extruder feed from like particular batch blend units and using a same second portable (hopper) vessel for collecting, transporting, and temporarily storing comminuted extrudates corresponding to said like particular batch blend units and feeding such comminuted extrudates into packages, especially when said first portable vessel is used for part or all of the blending operation. Like extrudates, corresponding to particular batch blend units, can be substantially completely hardened by cooling prior to their comminuting, and collected in, transported to, and temporarily stored for final comminution in a same third portable (hopper) vessel.
    Type: Grant
    Filed: February 6, 1974
    Date of Patent: March 2, 1976
    Assignee: SCM Corporation
    Inventors: Peter R. Gribble, Edward V. Denino