Patents by Inventor Joseph M. Krafft

Joseph M. Krafft 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).

  • Expanding tool for nondestructive inspection of flexible wire rope
    Patent number: 4022057
    Abstract: A tool for nondestructive testing of wire rope. Wire rope is held in posin in a frame by two grips such as gripper pliers. One grip is rotated relative to the other thereby reverse-twisting and opening the rope strands. Visual observation will reveal any damaged strand wires. The device is provided with mechanical stops to prevent over-twisting which may damage the wire rope.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: May 10, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John L. Bachman, Joseph M. Krafft