Abstract: Provided is an automated paperless order selection system of the type wherein an electronic order picking unit moves horizontally along a rail directly to a product storage location, thereby decreasing the distance traveled by the order picker and improving the accuracy of the order picking process, such order picking unit having an incremental encoder means for determining its exact location on the rail, and having a wireless radio frequency data communication (RF/DC) capability, and preferably including a printer, bar code scanner as well as audit and inventory report features.

Abstract: The invention contemplates a method of making a child-resistant safety cap, locking ring and container-neck combination, wherein the container may be formed of multiple metal parts, wherein the locking ring is assembled to the neck, and wherein the cap has a threaded engagement to the neck, with releasable ratcheting one-way engagement between the cap and the ring, in approach to the closed relation of the parts. The particular feature of the invention resides in the manner in which a resilient plastic locking ring is assembled to the neck part of the container in axially located and angularly keyed relation to the neck part.