Patents by Inventor Harold C. Watkins

Harold C. Watkins 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).

  • Modular molding system, and modules for use therewith
    Patent number: 6537053
    Abstract: A modular molding system having: an upper frame assembly configured for receiving a cavity module therein; a lower frame assembly configured for receiving a core module therein, the lower frame assembly including a two-stage master ejector system; a cavity module positioned within the upper frame assembly; and a core module positioned within the lower frame assembly, the core module including a two-stage ejector system having a plurality of ejection elements associated therewith; wherein the core and cavity modules together define a molding cavity for molding a workpiece therein, and wherein the master ejector system is operable to drive the ejection elements of the core module.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: March 25, 2003
    Assignee: Plastic Moldings Company, LLC
    Inventor: Harold C. Watkins