Differential having a generally spherical differencing element

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United States of America Patent

PATENT NO 4713976
SERIAL NO

06734347

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A differential mechanism can be driven by either or both of two inputs to provide an output rotational speed that is variable and can exceed, be equal to, can be less than, and can even be opposite to the input rotational speed. The differential uses a self-centering spherical element made of a structural thermoplastic material and which engages a pair of friction rings, one connected with an input assembly and one connected with an output assembly. A loading arrangement resiliently biases the spherical element into frictional engagement with the friction rings in a manner which is independent of the orientation of the spherical element with respect to the friction rings. Control of the rotational position of the spherical element is effected by an axially actuatable rod or a centrally disposed linkage so that the output rotational speed can be controlled. Powered control of the position of the spherical element can be provided.

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Patent Owner(s)

Patent OwnerAddress
BARTLETT ARDITH A7566 SOUTH ROSEMARY CIRCLE ENGLEWOOD CO 80112

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wilkes, Donald F Albuquerque, NM 14 319

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