Patents by Inventor Rogers, Daniel M.

Rogers, Daniel M. 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).

  • Electrostatic spray gun for powder coating material
    Patent number: 3940061
    Abstract: The invention relates to an electrostatic spray gun for the deposition of powdered coating material characterized by an improved deposition efficiency and provided with a multi-stage, trigger operated control that permits spraying at a plurality of conditions that may be preselected by the operator. An axially disposed needle charging electrode is used and an axial air flow passage surrounds the same to reduce any troublesome accumulation of powder on the needle under all spraying conditions.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: February 24, 1976
    Assignee: Champion Spark Plug Company
    Inventors: James J. Gimple, Charles T. Lasley, Rogers, Daniel M.