Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mark A. Krull0
Date of Patent
May 26, 2009
0Patent Application Number
113002610
Date Filed
December 13, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Weights are arranged in a vertical stack and movably mounted on a frame. On some embodiments, variable length members are provided to exert upward force against a weight supporting member associated with the stack when the weight supporting member is proximate its rest position relative to the frame. On other embodiments, the weights are rotated relative to the frame to selectively engage and disengage the weights for purposes of providing resistance to exercise motion.
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