# US 2018/0321008 A1 · Firearm suppressor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0321008 A1 - Document ID: US20180321008A1 - Status: Published application - Kind: A1 - Application number: 15/589,723 - Filed: 2017-05-08 - Published: 2018-11-08 - Earliest claimed: 2017-05-08 - Assignees: AMTAC, Inc ., d.b.a. AMTAC Suppressors - Applicants: AMTAC, Inc ., d.b.a. AMTAC Suppressors - Inventors: Anthony L. Barney - Web page: https://patentgrep.com/patent/US20180321008A1 ## CPC - F41A 21/30: Silencers - F41A 21/28: Gas-expansion chambers; Barrels provided with gas-relieving ports (F41A1/06, F41A13/08 {and F41A21/36} take precedence) - F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE ## Abstract A firearm suppressor can comprise an outer shell, and a suppressor core disposed inside the outer shell. The suppressor core can have a projectile passageway for a projectile from a firearm to travel through. The projectile passageway can extend along a longitudinal axis. The suppressor core can also include a central support rib disposed along the longitudinal axis. In addition, the suppressor core can include a first baffle and a second baffle spaced apart along the longitudinal axis and supported by the central support rib. The first and second baffles can be oriented at different angles from one another. The first and second baffles and the central support rib can at least partially define the projectile passageway. The first and second baffles and the central support rib can also at least partially form two different sized expansion chambers on opposite sides of the central support rib in fluid communication with the projectile passageway to receive discharge gases associated with the projectile. ## Claims ### Claim 1 A firearm suppressor core, comprising: a projectile passageway for a projectile from a firearm to travel through, the projectile passageway extending along a longitudinal axis; a central support rib disposed along the longitudinal axis and defining a rib plane that intersects the longitudinal axis; and a first baffle and a second baffle spaced apart along the longitudinal axis and supported by the central support rib, the first and second baffles being oriented at different angles from one another, wherein the first and second baffles and the central support rib at least partially define the projectile passageway, and at least partially form two different sized expansion chambers on opposite sides of the central support rib in fluid communication with the projectile passageway to receive discharge gases associated with the projectile. ### Claim 2 (depends on 1) The firearm suppressor core of claim 1, wherein the first and second baffles are oppositely oriented relative to the longitudinal axis. ### Claim 3 (depends on 2) The firearm suppressor core of claim 2, wherein the first and second baffles are oriented at opposite but substantially equal angles relative to the longitudinal axis. ### Claim 4 (depends on 1) The firearm suppressor core of claim 1, further comprising a third baffle spaced apart from the second baffle such that the second baffle is between the first and third baffles. ### Claim 5 (depends on 4) The firearm suppressor core of claim 4, wherein the first and third baffles are oriented at substantially the same angle. ### Claim 6 (depends on 5) The firearm suppressor core of claim 5, wherein the first and second baffles are oriented at opposite but substantially equal angles relative to the longitudinal axis. ### Claim 7 (depends on 1) The firearm suppressor core of claim 1, further comprising first and second outer support ribs on opposite sides of the central support rib coupled to radially outermost portions of the first and second baffles. ### Claim 8 (depends on 1) The firearm suppressor core of claim 1, wherein the central support rib, the first baffle, and the second baffle are formed as a single unitary structure. ### Claim 9 (depends on 1) The firearm suppressor core of claim 1, further comprising an entrance portion coupled to the central support rib and adapted to facilitate coupling the firearm suppressor core to a muzzle end of the firearm. ### Claim 10 (depends on 9) The firearm suppressor core of claim 9, further comprising an over-barrel sleeve coupled to the entrance portion and configured to fit radially outward of a barrel of the firearm and at least partially define an over-barrel expansion chamber. ### Claim 11 (depends on 10) The firearm suppressor core of claim 10, further comprising a third baffle supported by the central support rib and configured to direct a portion of the discharge gases rearward into the over-barrel expansion chamber. ### Claim 12 (depends on 10) The firearm suppressor core of claim 10, wherein the over-barrel sleeve is removably coupleable with the entrance portion. ### Claim 13 (depends on 1) The firearm suppressor core of claim 1, further comprising one or more secondary baffles disposed in at least one of the expansion chambers. ### Claim 14 (depends on 13) The firearm suppressor core of claim 13, wherein at least one of the one or more secondary baffles is supported by at least one of the first and second baffles. ### Claim 15 (depends on 13) The firearm suppressor core of claim 13, wherein the one or more secondary baffles are oriented at an angle less than or equal to 60 degrees relative to the longitudinal axis. ### Claim 16 (depends on 13) The firearm suppressor core of claim 13, wherein two of the one or more secondary baffles are disposed in a larger of the expansion chambers. ### Claim 17 (depends on 16) The firearm suppressor core of claim 16, wherein the two of the one or more secondary baffles disposed in the larger of the expansion chambers are supported by the first and second baffles. ### Claim 18 (depends on 13) The firearm suppressor core of claim 13, wherein one of the one or more secondary baffles is disposed in a smaller of the expansion chambers. ### Claim 19 (depends on 18) The firearm suppressor core of claim 18, wherein the one of the one or more secondary baffles disposed in the smaller of the expansion chambers extends opposite a direction of travel of the projectile. ### Claim 20 A firearm suppressor, comprising: an outer shell; and a suppressor core disposed inside the outer shell, the suppressor core having a projectile passageway for a projectile from a firearm to travel through, the projectile passageway extending along a longitudinal axis; a central support rib disposed along the longitudinal axis and defining a rib plane that intersects the longitudinal axis; and a first baffle and a second baffle spaced apart along the longitudinal axis and supported by the central support rib, the first and second baffles being oriented at different angles from one another, wherein the first and second baffles and the central support rib at least partially define the projectile passageway, and at least partially form two different sized expansion chambers on opposite sides of the central support rib in fluid communication with the projectile passageway to receive discharge gases associated with the projectile. ### Claim 21 (depends on 20) The firearm suppressor of claim 20, wherein the expansion chambers are partially formed by the outer shell. ### Claim 22 (depends on 20) The firearm suppressor of claim 20, further comprising: an entrance portion coupled to the central support rib and adapted to facilitate coupling the firearm suppressor core to a muzzle end of the firearm; and an over-barrel sleeve coupled to the entrance portion and configured to fit radially outward of a barrel of the firearm and at least partially form an over-barrel expansion chamber. ### Claim 23 (depends on 22) The firearm suppressor of claim 22, wherein the over-barrel expansion chamber is partially formed by the outer shell. ### Claim 24 (depends on 20) The firearm suppressor of claim 20, wherein the first and second baffles are oppositely oriented relative to the longitudinal axis. ### Claim 25 (depends on 24) The firearm suppressor of claim 24, wherein the first and second baffles are oriented at opposite but substantially equal angles relative to the longitudinal axis. ### Claim 26 (depends on 20) The firearm suppressor of claim 20, wherein the suppressor core further comprises a third baffle spaced apart from the second baffle such that the second baffle is between the first and third baffles. ### Claim 27 (depends on 26) The firearm suppressor of claim 26, wherein the first and third baffles are oriented at substantially the same angle. ### Claim 28 (depends on 27) The firearm suppressor of claim 27, wherein the first and second baffles are oriented at opposite but substantially equal angles relative to the longitudinal axis. ### Claim 29 (depends on 20) The firearm suppressor of claim 20, further comprising one or more secondary baffles disposed in at least one of the expansion chambers. ### Claim 30 (depends on 29) The firearm suppressor of claim 29, wherein at least one of the one or more secondary baffles is supported by at least one of the first and second baffles. ### Claim 31 (depends on 29) The firearm suppressor of claim 29, wherein the one or more secondary baffles are is oriented at an angle less than or equal to 60 degrees relative to the longitudinal axis. ### Claim 32 (depends on 29) The firearm suppressor of claim 29, wherein two of the one or more secondary baffles are disposed in a larger of the expansion chambers. ### Claim 33 (depends on 32) The firearm suppressor of claim 32, wherein the two of the one or more secondary baffles disposed in the larger of the expansion chambers are supported by the first and second baffles. ### Claim 34 (depends on 29) The firearm suppressor of claim 29, wherein one of the one or more secondary baffles is disposed in a smaller of the expansion chambers. ### Claim 35 (depends on 34) The firearm suppressor of claim 34, wherein the one of the one or more secondary baffles disposed in the smaller of the expansion chambers extends opposite a direction of travel of the projectile.