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An injection molding shooting pot 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. The injection molding shooting pot includes a shooting pot piston having a proximal end and a distal e

An injection molding shooting pot 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. The injection molding shooting pot includes a shooting pot piston having a proximal end and a distal end. A shooting pot piston extension is disposed at the distal end of the shooting pot piston, and is configured to dislodge a check valve moving element during a discharge cycle of the shooting pot piston.

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What is claimed is: 1. An injection molding shooting pot 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, said injection molding shooting pot apparatus comprising: a check va

What is claimed is: 1. An injection molding shooting pot 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, said injection molding shooting pot apparatus comprising: a check valve moving element; a shooting pot piston having a proximal end and a distal end; and a shooting pot piston extension disposed at the distal end of the shooting pot piston and configured to dislodge said check valve moving element during a discharge cycle of said shooting pot piston. 2. An injection molding shooting pot apparatus according to claim 1, wherein said shooting pot piston extension is integrally formed with said shooting pot piston. 3. An injection molding shooting pot apparatus according to claim 1, wherein said shooting pot piston extension has (i) a length less than that of said shooting pot piston, and (ii) an outside diameter less than that of said shooting pot piston. 4. An injection molding shooting pot apparatus according to claim 1, wherein said shooting pot piston extension has at least one longitudinally-extending slot formed in an outer surface thereof configured to cause melt to move therethrough during a melt inflow cycle. 5. An injection molding shooting pot apparatus according to claim 1, wherein the injection molding shooting pot piston is configured to be disposed in a plastic resin coinjection hot runner. 6. An injection molding hot runner assembly configured to be coupled to a coinjection nozzle having at least two melt channels ending at the same gate, the hot runner assembly comprising: an inlet melt channel; an outlet melt channel; a shooting pot assembly disposed between said inlet melt channel and said outlet melt channel, said shooting pot assembly comprising a shooting pot cylinder and a shooting pot piston; a check valve disposed within said shooting pot cylinder, said check valve including a movable occlusion; and an extension disposed on a distal end of said shooting pot piston and configured to contact and move said check valve occlusion during an injection operation of said shooting pot piston. 7. An injection molding hot runner assembly according to claim 6, wherein said extension has (i) a length less than that of said shooting pot piston, and (ii) an outside diameter less than that of said shooting pot piston. 8. An injection molding hot runner assembly according to claim 6, wherein said check valve occlusion comprises a ball. 9. An injection molding hot runner assembly according to claim 6, wherein said check valve occlusion comprises a cylinder having (i) a conical end disposed to face said inlet melt channel, and (ii) at least one slot longitudinally disposed on an outer surface thereof. 10. An injection molding hot runner assembly according to claim 9, wherein the at least one check valve cylinder slot is configured to (i) cause incoming melt to pass through the slot, and (ii) prevent melt backflow during the injection operation of said shooting pot piston. 11. An injection molding hot runner assembly according to claim 6, wherein said extension has an outside diameter less than that of the check valve occlusion. 12. An injection molding hot runner assembly according to claim 6, wherein said extension has at least one longitudinally-extending slot formed in an outer surface thereof configured to cause melt to move therethrough during a melt inflow cycle. 13. An injection molding hot runner assembly according to claim 6, further comprising: a second inlet melt channel; a second outlet melt channel; a second shooting pot assembly disposed between said second inlet melt channel and said second outlet melt channel, said second shooting pot assembly comprising a second shooting pot cylinder and a second shooting pot piston; a second check valve disposed within said second shooting pot cylinder, said second check valve including a second movable occlusion; and a second extension disposed on a distal end of said second shooting pot piston and configured to contact and move said second check valve occlusion during an injection operation of said second shooting pot piston. 14. An injection mold, comprising: a mold cavity; a coinjection nozzle configured to inject a melt into said mold cavity, said coinjection nozzle having at least two melt channels ending at the same gate; an outlet melt channel configured to carry melt to said nozzle; a shooting pot piston; a shooting pot cylinder configured to discharge melt to said outlet melt channel upon activation of said shooting pot piston; an inlet melt channel configured to carry melt to said shooting pot cylinder; a check valve disposed between said inlet melt channel and said outlet melt channel, said check valve including a check valve occlusion; and an extension disposed on a distal end of said shooting pot piston and configured to contact and move said check valve occlusion during an injection operation of said shooting pot piston. 15. An injection mold according to claim 14, wherein said extension is integrally formed with said shooting pot piston. 16. An injection mold according to claim 14, wherein said extension has (i) a length less than that of said shooting pot piston, and (ii) an outside diameter less than that of said shooting pot piston. 17. An injection mold according to claim 14, wherein said extension has at least one longitudinally-extending slot formed in an outer surface thereof configured to cause melt to move therethrough during a melt inflow cycle. 18. An injection molding shooting pot assembly 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, said assembly comprising: a shooting pot cylinder configured to be disposed at least partially within the coinjection hot runner; a shooting pot piston disposed within said shooting pot cylinder; a check valve chamber in fluid communication with said shooting pot cylinder; a check valve occlusion disposed within said check valve chamber; and dislodging structure disposed on a distal end of said shooting pot piston so as to contact and move said check valve occlusion during an injection operation of said shooting pot piston. 19. An injection molding shooting pot assembly 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, said assembly comprising: a shooting pot cylinder; a check valve occlusion configured to move within a check valve chamber that is disposed integral with the shooting pot cylinder; a shooting pot piston disposed within the shooting pot cylinder and configured to discharge a melt from the shooting pot cylinder through a melt outlet channel, and through the coinjection nozzle into a mold cavity; and an extension disposed on the distal end of the shooting pot piston to contact and move said check valve occlusion during the melt-discharging.