Patents by Inventor Michael C. Hayduk

Michael C. Hayduk 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).

  • Patent number: 6171221
    Abstract: A pair of extension bars join together in forming a tubular clamp having a raised wall surface, with the extension bars having angularly adjustable stirrups through which the arms of the user pass in grasping onto a pair of handle members, with one extension bar having a spring actuated finger pull to latch onto the raised wall in closing the tubular clamp in coupling to a weight bar, or in separating the tubular clamp when proceeding to couple to a different weight bar. The distance from the handle member to the clamp affords a lever action to increase resistance range without increasing any weight being exercised with, as well as working muscle at lower ranges of motion.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: January 9, 2001
    Inventor: Michael C. Hayduk