Patent ID: 8448558

Claim:
A high capacity ammunition feeding system for use with a firearm, comprising: a body portion having a channel operable for receiving one of more firearm cartridges; an encapsulated spring clutch mechanism disposed within said body portion; a cam stop winding knob operably connected to said body portion such that said cam stop winding knob is able to rotate relative to said body portion in one direction; a biasable member operably connected to and anchored by said encapsulated spring clutch mechanism and said cam stop winding knob; and a spiral following clutch drive arm driven by said encapsulated spring clutch mechanism such that said spiral following clutch drive arm moves said one or more cartridges in said channel, and when said cam stop winding knob is rotated, tension builds in said biasable member to apply rotational force to said encapsulated spring clutch drive mechanism, transferring rotational force to said spiral following clutch drive arm, driving said one or more cartridges through said channel as said one or more cartridges are discharged from said firearm, and said cam stop winding knob is operable to relieve tension is said biasable member when said firearm is not in use; said encapsulated spring clutch mechanism further comprising: a power spring drive shaft which anchors an end of said biasable member; a drive shaft castle pin formed as part of said power spring drive shaft; an encapsulated spring clutch mechanism castle cover having a plurality of castle cover locking notches, each of said plurality of castle cover locking notches operable for receiving said drive shaft castle pin, said power spring drive shaft slidably extending through said encapsulated spring clutch mechanism castle cover such that said drive shaft castle pin is selectively disposed in one of said plurality of castle cover locking notches; an encapsulated spring clutch mechanism cup; an encapsulated spring clutch mechanism compression spring attached to said power spring drive shaft and disposed in said encapsulated spring clutch mechanism cup for biasing said drive shaft castle pin into one of said plurality of castle cover locking notches when said encapsulated spring clutch mechanism castle cover is assembled with said encapsulated spring clutch mechanism cup; and a secondary drive shaft operable for being connected to said encapsulated spring clutch mechanism cup, said secondary drive shaft extending through said spiral following clutch drive arm such that as tension is generated in said biasable member, rotational force is transferred from said biasable member to said power spring drive shaft, thereby causing said power spring drive shaft, said encapsulated spring clutch mechanism castle cover, said encapsulated spring clutch mechanism cup, said secondary drive shaft, and said spiral following clutch drive arm to rotate, moving said one or more cartridges in said channel.