Patents by Inventor Mark T. Zabawa

Mark T. Zabawa 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).

  • Threaded fastener test stand
    Patent number: 4866990
    Abstract: A test stand for testing male threaded fasteners comprises a holder for the fastener which locates a rotating male fastener adjacent to a target bore in a target body holder. The target bore is positioned at an angle to the fastener by rotating the target body holder. If the fastener meets manufacturing specifications, it engages the target bore threading and causes the target bore and fastener to become aligned by the rotation of the target body holder. A test stand for testing female fasteners operating in the same way locates a rotating female fastener adjacent a target stud in a target stud holder.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: September 19, 1989
    Assignee: Buell Industries, Inc.
    Inventors: Francis C. Peterson, Mark T. Zabawa