Patents by Inventor John Farley Cobb

John Farley Cobb 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).

  • Mold apparatus
    Patent number: 4030871
    Abstract: An apparatus for molding plastic sheet and the like by a thermoforming process, wherein an overhanging hollow portion is formed in the molded sheet by a retractable mold portion having a plurality of resiliently connected elements which may be moved relative to each other as the mold portion is withdrawn from the overhanging, formed sheet portion. In the illustrated embodiment, a plurality of spring means are provided for providing different positioning functions in arranging the movable mold portion in the desired configuration.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: June 21, 1977
    Assignee: Whirlpool Corporation
    Inventor: John Farley Cobb