US Patent 7828717 Mechanized dildo

A mechanized dildo, including a motor driven coaxial plurality of longitudinally spaced drive cams, and corresponding sets of passive cams that operate within an elastic phallic sleeve to locally cyclically expand a girth of the sleeve. Optional vibratory elements are positioned proximate a distal extremity of the sleeve, and in a laterally extending arm that is formed for clitoral stimulation. A battery powered control handle provides multiple operating modes and speeds.