Gas operated automatic weapon

专利名称：Gas operated automatic weapon发明人：John S. Donovan申请号：US06/047463申请日：19790611公开号：US04253378A公开日：19810303

摘要：A belt-fed, gas-operated automatic weapon of a type in which the gas pressuredeveloped in the barrel bore during firing is ported just forward of the barrel chamber tobe utilized to compress a system of opposing spring sets which in turn operate thevarious mechanisms involved in the automatic or semi-automatic functioning of theweapon, including ammunition feeding and ejection, bolt locking and unlocking, andreciprocation. Dual power cylinders with symmetrically arranged pistons operated by thegas pressure compress all of the springs in the opposing spring sets by engagement witha sliding carriage. The forces exerted on the bolt locking mechanism by the spring setsare greatly reduced during the interval in which the locking mechanism is operated toreduce wear on the mating surfaces and to properly sequence the unlocking afterdischarging a round. Manual actuation of the enabled with an automatic latching of thebolt in the retracted position upon manual actuation and also upon full depression of aselector lever and release of the trigger during automatic fire such that the bolt remainsin the retracted position upon cessation of fire to allow cooling of the breech and/orfeeding of a fresh ammunition belt. A particular interlinked ammunition belt is disclosedto advance rounds carried by the belt through the weapon as well as an arrangement forseparating each link from the belt after passing through the weapon.

申请人：DONOVAN; JOHN S.

代理人：John R. Benefiel

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