Patents by Inventor Theodore Sopher

Theodore Sopher 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).

  • Warp resistant closure for sanitary cans
    Patent number: 4467933
    Abstract: A closure for sanitary or food cans made from high temper plate to withstand the high pressure developed during processing without permanent distortion or buckling. An upwardly directed reinforcing annular bead is introduced concentric with a countersink groove which is disposed between the end flange and said annular bead. The ends are further contoured with a series of transitional steps or panels inward of said annular bead. These features enhance the strength of the closure without inducing substantial warpage.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: August 28, 1984
    Assignee: American Can Company
    Inventors: Harlen E. Wilkinson, Theodore Sopher