Patents by Inventor Donald L. Swartz

Donald L. Swartz 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).

  • Rack and pinion ejector guiding system for a molding machine
    Patent number: 6872350
    Abstract: An ejector system for use in an injection molding machine comprises a plurality of rack gears and pinions gears that provide active alignment of plates within the ejector system. As unequal force is experienced in ejecting a molded item, the rack and pinion gears distribute the force to other areas of the ejector system plate, maintaining proper alignment of the plates within the ejector system.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: March 29, 2005
    Inventor: Donald L. Swartz
  • Rack & pinion ejector guiding system for a molding machine
    Publication number: 20040207119
    Abstract: An ejector system for use in an injection molding machine comprises a plurality of rack gears and pinions gears that provide active alignment of plates within the ejector system. As unequal force is experienced in ejecting a molded item, the rack and pinion gears distribute the force to other areas of the ejector system plate, maintaining proper alignment of the plates within the ejector system.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 21, 2004
    Applicant: GUIDE CORPORATION
    Inventor: Donald L. Swartz