Gas System for an Automatic Firearm
First Claim
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1. A gas operating system for a firearm, said firearm comprising a barrel and a bolt actuated operating system, the gas system comprising:
- a. a gas manifold with fluid communication into a fore portion of the barrel through a tap;
b. a hollow gas tube extending rearward from and having fluid communication with the gas manifold;
c. a piston housing situated at a hind end of the barrel and encompassing an end of the hollow gas tube; and
d. a piston residing within said piston housing, capable of lateral motion along an axis of the barrel and capable of impingement upon the bolt actuated operating systemwherein the piston and piston housing present a relatively gas tight chamber and, upon firing of the firearm, released gasses are diverted through the tap, into the gas manifold, through the hollow gas tube and into the piston housing, where said gasses build pressure to actuate the piston in a rearward direction such that it forces the bolt actuated operating system likewise rearward from a first position to a second position, releasing pressure therein and allowing the piston to be returned to a forward position when the bolt actuated operating system returns to its first position.
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Abstract
The present invention is a gas system for a firearm comprising a hollow gas tube extending between a forward gas tap in a firearm'"'"'s barrel and a rearward piston assembly to impinge upon and operate the firearm'"'"'s bolt operating system. The system does not have a translation rod extending between the two components as in prior art systems nor does it have a rearward tap like others. As such, it balances cleanliness and weight reduction of the prior art systems and reduces moving parts.
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Citations
19 Claims
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1. A gas operating system for a firearm, said firearm comprising a barrel and a bolt actuated operating system, the gas system comprising:
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a. a gas manifold with fluid communication into a fore portion of the barrel through a tap; b. a hollow gas tube extending rearward from and having fluid communication with the gas manifold; c. a piston housing situated at a hind end of the barrel and encompassing an end of the hollow gas tube; and d. a piston residing within said piston housing, capable of lateral motion along an axis of the barrel and capable of impingement upon the bolt actuated operating system wherein the piston and piston housing present a relatively gas tight chamber and, upon firing of the firearm, released gasses are diverted through the tap, into the gas manifold, through the hollow gas tube and into the piston housing, where said gasses build pressure to actuate the piston in a rearward direction such that it forces the bolt actuated operating system likewise rearward from a first position to a second position, releasing pressure therein and allowing the piston to be returned to a forward position when the bolt actuated operating system returns to its first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A gas operating system for a firearm, said firearm comprising a barrel and a bolt actuated operating system, the gas system comprising:
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a. a gas manifold with fluid communication into a fore portion of the barrel through a tap; b. a hollow gas tube extending rearward from and having fluid communication with the gas manifold; c. a piston housing situated at a hind end of the barrel and encompassing an end of the hollow gas tube; and d. a piston residing about said piston housing, capable of lateral motion along an axis of the barrel and capable of impingement upon the bolt actuated operating system wherein the piston and piston housing present a relatively gas tight chamber and, upon firing of the firearm, released gasses are diverted through the tap, into the gas manifold, through the hollow gas tube and into the piston housing, where said gasses build pressure to actuate the piston in a rearward direction such that it forces the bolt actuated operating system likewise rearward from a first position to a second position, releasing pressure therein and allowing the piston to be returned to a forward position when the bolt actuated operating system returns to its first position.
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Specification