Patents by Inventor Norwood C. Bizzell

Norwood C. Bizzell 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).

  • Recyclable caulk cartridge with breakaway nozzle
    Patent number: 5560521
    Abstract: A caulk cartridge of recyclable material including an end panel with an integral nozzle. Interior projections integral with the end panel define a cylindrical extension about the open base end of the nozzle and, upon being subjected to the force of the piston-driven plunger thereagainst, inwardly deform and fracture the end panel, breaking away the nozzle, and residue therein, from the end panel.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: October 1, 1996
    Assignee: Sonoco Products Company
    Inventors: David E. Boring, Norwood C. Bizzell