Abstract: A process for injection molding arcuately-shaped hollow articles is disclosed. The process includes the steps of positioning a stack mold into an injection molding machine. The stack mold has first, second and third mold blocks with the first mold block positioned between the second and third mold blocks. Each of the mold blocks has a plurality of cavities formed therein. The cavities formed in the first mold block are designed to mate with the cavities formed in the second and third mold blocks when the stack mold is closed to form a plurality of arcuately-shaped cavities. The stack mold further contains a pair of slide carriers movably connected to each of the second and third mold blocks and a plurality of inner cores secured to each of the slide carriers. The stack mold is closed by first moving both of the pairs of slide carriers such that each of the inner cores is positioned within one of the arcuately-shaped cavities to form a hollow interior in each of the molded articles.

Abstract: An outboard ballast which allows a compact fluorescent light bulb and its associated ballast to be positioned within a standard table lamp having a standard-size harp. The ballast is divided into separate sections so that the sections and their housing can extend into an area beyond the harp and below the socket of the lamp fixture. A three-way switch circuit is provided to be adaptable with common table lamp fixtures. The configuration of the present invention provides security features.

Abstract: An adjustable dispenser nozzle apparatus for a paper towel container of either rolled or folded towels. The apparatus comprises a base, an adjustable fixture and an inner sleeve. The base includes a plurality of extensions separated by slits. The fixture is adjustable and as it is further threaded onto the base the extensions of the base become narrowed, resulting in a smaller exit aperture for the dispenser nozzle. Furthermore, the bottom part of the base, which is comprised of a plurality of extensions, as well as the bottom part of the inner sleeve, have sharp edges. Thus, providing a suitable surface upon which the dispensed towel may be torn.

Abstract: An improved unitary hinged box-type container for enclosing contents such as flexible disk packages including complementary top and bottom portions, connected by an integral intermediate hinge, which mate together to form an enclosed box in the closed position and further including an open position locking device for securing the container in an open position with the top portion rotated approximately 270.degree. about the hinge from the closed position.