Firearm assemblies with multiple gas ports
AssigneeWHG Properties, LLC
InventorWilliam H. Geissele
Life of this patent
Estimating the term…
Abstract
An assembly for directing propellant gas to an action of a firearm includes a barrel and a gas block. The barrel has a plurality of gas ports that communicate with the bore of the barrel. The barrel and the gas block define a passage that receives pressurized propellant gas from the bore by way of the barrel gas ports, and directs the propellant gas to a gas port of the gas block. The plurality of barrel gas ports and the passage act as a manifold in which the propellant gas is taken from multiple locations within the barrel, combined into a single flow, and directed into the gas block via the gas block gas port. The pressurized gas is then routed to an action of the firearm by way of a gas tube and a gas key.
Claims15
An assembly for directing gas to an action of a firearm, comprising:
- a barrel defining a bore configured to guide a projectile as the projectile is propelled through the bore by pressurized gas, the barrel having a plurality of barrel gas ports formed therein, each of the plurality of barrel gas ports being in fluid communication with the bore;
- and
- at least one gas block configured to align with an axial location of the plurality of barrel gas ports, the at least one gas block having a gas block gas port formed therein, wherein at least one of the barrel and the at least one gas block define a groove as part of a passage configured to direct the pressurized gas from the plurality of barrel gas ports to the gas block gas port, wherein all of the plurality of the barrel gas ports are in fluid communication with the groove, wherein the gas block gas port is in fluid communication with the groove, and the assembly is configured to conduct pressurized gas from the barrel through the plurality of barrel gas ports into the groove and from the groove into the gas block gas port,
- wherein at least one of an outer surface of the barrel and an inner surface of the at least one gas block has the groove formed therein, wherein the plurality of barrel gas ports are spaced apart along a line parallel to an axis along which the barrel extends.
An assembly for directing gas to an action of a firearm, comprising:
- a barrel defining a bore configured to guide a projectile as the projectile is propelled through the bore by pressurized gas, the barrel having a plurality of barrel gas ports formed therein, each of the barrel gas ports being in fluid communication with the bore;
- and
- at least one gas block configured to align with an axial location of the plurality of barrel gas ports, wherein:
- the at least one gas block has a gas port formed therein;
- the at least one gas block comprises a conduit having an entrance and an exit;
- and the conduit is configured so that the entrance to the conduit aligns with, and is in fluid communication with one of the plurality of barrel gas ports, and the exit aligns with, and is in fluid communication with the gas block gas port,
- wherein at least one of the barrel and the at least one gas block define a groove as part of a passage configured to direct the pressurized gas from the plurality of barrel gas ports to the gas block gas port, wherein all of the plurality of the barrel gas ports are in direct fluid communication with the groove, and wherein the gas block gas port is in direct fluid communication with the groove, and wherein pressurized gas from the barrel is conducted through the plurality of barrel gas ports, through the groove, and into the gas block gas port,
- wherein the gas block gas port aligns with the plurality of barrel gas ports, and wherein the plurality of barrel gas ports are displaced relative to one another along an axis along which the barrel extends.
A barrel for a firearm comprising:
- an inner surface defining a bore configured to guide a projectile as the projectile is propelled through the bore by pressurized gas and an outer surface,
- wherein the barrel has a plurality of barrel gas ports formed therein,
- wherein each of the plurality of barrel gas ports has an entrance defined by the inner surface of the barrel, wherein all of the plurality of barrel gas ports has an exit defined within a groove defined in the outer surface of the barrel, and
- wherein each of the plurality of barrel gas ports is configured to simultaneously fluidically connect to an action of the firearm, and
- wherein the plurality of barrel gas ports are displaced relative to one another along an axis along which the barrel extends.
Dependencies are inferred from the claim text.