Patent ID: 7824596

Claim:
A method of assembling an injection molding shooting pot actuation apparatus configured to be installed in a coinjection hot runner with a coinjection nozzle, the coinjection nozzle having at least two melt channels ending at the same gate, comprising the steps of: providing a shooting pot in at least one of a mold core half and a mold cavity half; using a shooting pot piston to discharge a melt from the shooting pot to the coinjection hot runner; providing transmission structure that extends through one of the mold cavity half and the mold core half, and transmits a force to said shooting pot piston; providing actuation structure disposed on the opposite side of the mold cavity half from the coinjection hot runner; using the actuation structure to provide the force to said transmission structure; providing a second shooting pot disposed in the one of said mold cavity half and said mold core half in which said shooting pot is not disposed; using a second shooting pot piston to (i) discharge a second melt from the second shooting pot to the coinjection hot runner, (ii) move in a melt-discharge direction that is opposite to a melt-discharge direction of said shooting pot piston, and (iii) be actuated by a movement of a moving platen with respect to a stationary platen, said second shooting pot being disposed on an opposite side of said coinjection hot runner from said shooting pot.