Caterpillar Inc.

Roger D Krikke

Benny Ballheimer

Nelson A Jones

Dwight V Stone

The existing couplings used for transmission of torque uses a combination of mechanical springs or a combination of dampening devices such as cylindrical openings having pistons spring-biased therein. The cylindrical openings also have viscous fluid introduced therein and dampen the torque applied thereto. A coupling apparatus is provided for resiliently transmitting torque including a pin assembly positioned in mechanical connection between an annular plate member and a gear member, dampening backlash motion including a pin assembly and a mechanism for biasing a piston into contact with one of the gear member or annular plate member, and lubricating the interface between the components having relative oscillation therebetween. An interface between the moving parts, the annular plate and the gear, is providing and a lubrication system is provided to lubricate the interface.

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Peoria, IL, United States of America

Roger D Krikke