Patents Assigned to J & J Tool and Mold Ltd.
  • Mould for closure caps with intermittent threads undercuts or hold-down lugs
    Patent number: 4019711
    Abstract: A core is provided, useful in the manufacture of closure caps, each closure cap having a top, dependent skirt and securing means, comprising intermittent or interrupted threads or hold-down lugs.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: April 26, 1977
    Assignees: J & J Tool and Mold Ltd., Consumers Glass Co., Ltd.
    Inventors: Jack Altenhof, John Altenhof, Robert Chartier