Patents by Inventor Thomas H. Painter

Thomas H. Painter 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: 4050635
    Abstract: Method and apparatus for reclaiming sand from foundry molds and forms. A drum is mounted in a frame for rotation about its longitudinal axis. The frame is hinged at its rearward end so that the longitudinal axis of the drum may be adjustably inclinedfrom the horizontal. The drum is provided with first and second breaking zones for reducing large pieces of material in the drum as the drum rotates. The first breaking zone contains longitudinal rib members and spikes attached thereto while the second breaking zone contains longitudinal rib members only. A perforate partition separates the first and second breaking zones and prevents the movement of material from the first breaking zone to the second breaking zone until it has been sufficiently reduced. There is also provided a grinding zone for further reducing particles having a predetermined maximum size by means of grinding balls.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: September 27, 1977
    Assignee: Whirl-Air-Flow Corporation
    Inventors: Edward E. Mueller, Thomas H. Painter, Michael K. Harrod