Patents by Inventor David W. Kragness

David W. Kragness 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).

  • Machine for indexing groups of nestable trimmed articles in a stack
    Patent number: 4005626
    Abstract: A machine for indexing groups of nestable die trimmed articles in a stack of such articles by causing a misregistration of a sheet of preformed articles during a die trimming operation. Such indexing can aid in separating said stack into said groups.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: February 1, 1977
    Assignee: Standard Oil Company (Indiana)
    Inventors: Allen H. Bateman, Charles B. Case, David W. Kragness, Edward C. LeDuc