Abstract: The present invention provides a drive assembly for a model toy train which connects a single drive shaft from an electric motor to a pair of discrete truck assemblies. The drive shaft drives a plurality of pinions which in turn drive a pair of worm shafts which extend toward the truck assemblies. A pair of worm wheel shafts are driven by the worm shafts to drive the wheels on the truck assemblies. A saddle and bearing combination rotationally connects the model toy train to the truck assemblies allowing the truck assemblies to freely rotate.

Abstract: A connector position assurance (CPA) device for use with the latching mechanism of a two-part connector includes a transverse body portion, two spaced, parallel, flexible side arms, and a flexible, generally Z-shaped bottom arm. The bottom arm has a pivot point which causes the distal end of the arm to pivot upon assembly of the connector and consequent flattening of the bottom arm. The rotation of the distal end releases the CPA from a rest position upon complete latching of the components to permit the CPA to move to an engaged position which locks the latch mechanism.

Abstract: A rotary valve has a stator with ports for connection to a vacuum source and to a plurality of vacuum actuators, and a housing having a central hub. A selector residing between the stator and the housing comprises a resilient body insert molded to a steel drive plate having a central drive opening for receiving a drive shaft and an array of holes around the central opening. On one side of the plate the body comprises a valve member in contact with the stator and defines passages to selectively interconnect the ports, and on the other side of the plate the body comprises a resilient tubular spring surrounding the hub and pressing against the housing to bias the valve member against the stator.