Astronova, Inc.

Louis D Verte, Jr

Joseph G Spanedda

Jonathan J Azar

A worm drive includes a worm wheel having two spaced-apart outer rims defining an annular channel therebetween for receiving at least a portion of a worm screw. Each of the rims include a set of side teeth in the annular channel extending that are spaced apart from and face the set of teeth of the other rim. The two sets of teeth capture the worm screw and mesh with the screw thread of the worm screw such that the worm screw is engaged by the teeth only on spaced-apart locations on opposite sides of the worm screw. There are no resultant forces in an axial direction of the worm wheel during operation of the worm drive. Also, the worm screw and the worm wheel are self-aligning in the axial direction of the worm wheel.

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West Greenwich, RI, United States of America

Louis D Verte, Jr