Patents by Inventor John M. Barth

John M. Barth 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).

  • Apparatus for forming plastic bottle base cups
    Patent number: 4961701
    Abstract: According to the preferred embodiment of the present invention, an apparatus for forming base cups for plastic bottles is disclosed wherein a hollow body is blow molded and then cut in half to form two base cups. The side wall of the body is molded with a pair of outwardly extending projections such that when stacking a plurality of base cups, the projection of one cup engages the top lip of the adjacent lower cup thereby making denesting of the top cup easier. After molding the hollow body, the body is transferred to a carrier having clamps for engaging the end walls of the body to move and rotate the bodies past a knife for cutting the body in half to form the two base cups.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: October 9, 1990
    Assignee: Hoover Universal, Inc.
    Inventor: John M. Barth
  • Container with base cup and projection to limit stacking of base cups
    Patent number: 4883188
    Abstract: According to the preferred embodiment of the present invention, a method and apparatus for forming base cups for plastic bottles is disclosed wherein a hollow body is blow molded and then cut in half to form two base cups. The side wall of the body is molded with a pair of outwardly extending projections such that when stacking a plurality of base cups, the projection of one cup engages the top lip of the adjacent lower cup thereby making denesting of the top easier.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: November 28, 1989
    Assignee: Hoover Universal, Inc.
    Inventor: John M. Barth
  • Base cup for a plastic container
    Patent number: D307721
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: May 8, 1990
    Assignee: Hoover Universal, Inc.
    Inventor: John M. Barth