Patents by Inventor Stephen F. Royal

Stephen F. Royal 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).

  • Tamper evident container overcap molded in straight draw mold
    Patent number: 5085333
    Abstract: A tamper evident overcap has a tear band which is offset radially from both a ring member sonically welded to a container shoulder and a cap, by generally radially extending frangible bridges. The bridges are severed by applying force to a pull tab extending radially and axially from the tear band in alignment with a gap in the ring member so that there are no undercut faces on the overcap which can consequently be molded in a straight draw mold without cams or slides.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: February 4, 1992
    Assignee: Continental Plastics, Inc.
    Inventors: Herbert V. Dutt, Gary L. Mengeu, Stephen F. Royal