Patents by Inventor Robert R. Pittman

Robert R. Pittman 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: 4290788
    Abstract: A rigid cutout template is attached to the thin wall of a return air duct and suitably positions and supports an electrostatic air cleaner inserted into the duct through a cutout therein defined by the template. A power-pac and control box is secured elsewhere to the duct and includes high voltage power supply means, an air flow responsive switch and means visually indicating the existence of a power supply, the connection therewith of the electrostatic cell, and normal and abnormal current flow through the electrostatic cell.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: September 22, 1981
    Assignee: Emerson Electric Co.
    Inventors: Robert R. Pittman, Clifford B. Elbrader, Jimmy L. Milum