Abstract: A tool and method adapted to facilitate access to a hot runner system in an injection molding system wherein the hot runner system includes one or more injection nozzles projecting away from a hot runner surface. The tool includes a first plate structure having one or more nozzle acceptance openings adapted to engage the injection nozzles. A second plate structure is disposed in opposing, spaced apart relation from the first plate structure. One or more elongate spacers are disposed in connective spacing relation between the first plate structure and the second plate structure.

Abstract: An injection molding hot runner system of modular construction adapted for rapid removal and replacement during required maintenance. The system includes at least one hot runner module adapted for mounting at a support surface. The hot runner module includes one or more injection nozzles adapted for fluid communication with a supply of molten material and an arrangement of acceptance openings adapted to engage mounting projection elements extending away from the support surface.

Abstract: An injection molding hot runner system of modular construction adapted for rapid removal and replacement during required maintenance. The system includes at least one hot runner module adapted for mounting at a support surface.

Abstract: A tool and method adapted to facilitate access to a hot runner system in an injection molding system wherein the hot runner system includes one or more injection nozzles projecting away from a hot runner surface. The tool includes a first plate structure having one or more nozzle acceptance openings adapted to engage the injection nozzles. A second plate structure is disposed in opposing, spaced apart relation from the first plate structure. One or more elongate spacers are disposed in connective spacing relation between the first plate structure and the second plate structure.

Abstract: A process is provided for injection molding a plastic material into an interfacial space between a spherical ball and a spherical cavity of a ball and socket joint assembly to form a plastic bearing which has an as-molded tapered undercut. A sacrificial ring having a preselected outer diameter and a generally triangular cross-sectional shape is selected. The sacrificial ring is placed around the ball adjacent the neck of the ball assembly. The sacrificial ring is rigidly confined between the ball, the cavity, and the mold. The plastic material is injection molded into the interfacial space and a plastic bearing having a tapered undercut which mimics the shape of the sacrificial ring is formed.