Patents by Inventor Leonard F. Tworek

Leonard F. Tworek 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).

  • Spacer unit
    Patent number: 4395808
    Abstract: A method and apparatus for handling large articles, such as heavy rolls of paper and the like, is disclosed. At least three composite spacer units, each constructed from a plate and a cylindrical spacer member secured thereto, are attached to a shield fastened on the bottom of each article so as to provide a space beneath each article for receiving lifting members inserted under the article.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: August 2, 1983
    Assignee: Signode Corporation
    Inventors: Robert P. Ryan, Leonard F. Tworek, James H. Britain