Patents by Inventor Fred R. Sawyer

Fred R. Sawyer 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: 4629488
    Abstract: A parison mold portion (20) of an individual glassware molding machine, of the type having a parison mold (22), a split neck ring (28), a neck ring holder (30), an upper receiver cap (40), and a parison plunger (116) , is provided with means for cooling the neck ring (28) and the parison mold (22). The means for cooling the neck ring (28) and the parison mold (22) includes a plurality of first cooling holes (214) in the upper receiver cap (40), a plurality of second cooling holes (216) in the neck ring (28) that communicate with the plurality of first cooling holes (214), and a plurality of third cooling holes (230) in the parison mold (22) that communicate with the plurality of second cooling holes (216).
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: December 16, 1986
    Assignee: Ball Corporation
    Inventors: Wilbur O. Doud, Robert E. Davis, Fred R. Sawyer
  • Patent number: 4623374
    Abstract: A parison mold portion (20) of a glassware forming machine, of the type having a parison mold (22) and a parison plunger (240), is provided with means for cooling the parison plunger (240). The means for cooling the parison plunger (240) includes a central cooling passage (258) that communicates with an end surface (246) and that extends longitudinally toward a nose (254), and a plurality of umbrella passages (162) that communicate with the end surface (246) radially outward from the central cooling passage (258), that are circumferentially spaced, and that intercept the central cooling passage (258) proximal to the nose (254).
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: November 18, 1986
    Assignee: Ball Corporation
    Inventors: Wilbur O. Doud, Robert E. Davis, Fred R. Sawyer