# US 12,111,134 B2 · Recoil damping device for portable firearms > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,111,134 B2 - Document ID: US12111134B2 - Status: Granted - Kind: B2 - Application number: 18/170,682 - Filed: 2023-02-17 - Published: 2023-08-24 - Granted: 2024-10-08 - Earliest claimed: 2022-02-21 - Assignees: Benelli Armi S.P.A. - Applicants: Benelli Armi S.P.A. - Inventors: Luigi Moretti - Web page: https://patentgrep.com/patent/US12111134B2 ## CPC - F41C 23/06: Stocks {or firearm frames} specially adapted for recoil reduction - F41C 23/18: characterised by the material used (F41C23/08 takes precedence) - F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR ## Abstract A recoil damping device for portable firearms, including a damping means inserted in the casing; a movable insert is functionally associated with the damping means and slide along a direction that is substantially axial with respect to the casing; the damping means is constituted by a body formed by a cellular solid having a stochastic structure, such as a foam, or having a nonstochastic structure, such as a reticular structure, lattice, etc. ## Claims ### Claim 1 A recoil damping device for portable firearms, comprising a casing and a damping means inserted in said casing; said device comprising a movable insert functionally associated with said damping means; said movable insert being adapted to slide along a direction that is substantially axial with respect to said casing; said damping means being constituted by a body formed by a cellular solid; further comprising a primary braking assembly, mounted in said movable insert, and a secondary braking assembly, integral with said casing; said primary braking assembly dissipating energy by sliding, with friction, with respect to said secondary braking assembly. ### Claim 2 (depends on 1) The device, according to claim 1, wherein the cellular solid has a stochastic structure that comprises layers of material; said layers operate in series. ### Claim 3 (depends on 1) The device, according to claim 1, wherein the cellular solid has a nonstochastic structure that comprises materials chosen among polymeric materials, mutually combined in series and/or in parallel. ### Claim 4 (depends on 1) The device, according to claim 1, wherein said damping means has a side opposite to a buttstock associated with said device; said opposite side comprising a layer made of denser material and having a function of reducing the impact between said casing and said movable insert, when said insert reaches the end of the stroke of the insert. ### Claim 5 (depends on 1) The device, according to claim 1, wherein said movable insert is configured to be coupled to said damping means; wherein the dampening means moves in a direction transverse to the sliding direction of said movable insert to facilitate coupling of the dampening means to the insert. ### Claim 6 (depends on 1) The device, according to claim 1, wherein said movable insert is formed monolithically with said damping means, forming a monolithic body. ### Claim 7 (depends on 1) The device, according to claim 1, wherein said damping means comprises a structure formed by two distinct and concatenated geometries which work in parallel. ### Claim 8 (depends on 1) The device, according to claim 1, wherein said secondary braking assembly comprises two pairs of blades which create friction during the translation of said movable insert. ### Claim 9 A recoil damping device for portable firearms, comprising a casing and a damping means inserted in said casing; said device comprising a movable insert functionally associated with said damping means; said movable insert being adapted to slide along a direction that is substantially axial with respect to said casing; said damping means being constituted by a body formed by a cellular solid; wherein said movable insert is configured to be coupled to said damping means; wherein the dampening means moves in a direction transverse to the sliding direction of said movable insert to facilitate coupling of the dampening means to the insert. ### Claim 10 (depends on 9) The device, according to claim 9, wherein the cellular solid has a stochastic structure that comprises layers of material; said layers operate in series. ### Claim 11 (depends on 9) The device, according to claim 9, wherein the cellular solid has a nonstochastic structure that comprises materials chosen among polymeric materials mutually combined in series and/or in parallel. ### Claim 12 (depends on 9) The device, according to claim 9, wherein said damping means has a side opposite to a buttstock associated with said device; said opposite side comprising a layer made of denser material and having a function of reducing the impact between said casing and said movable insert, when said insert reaches the end of the stroke of the insert. ### Claim 13 (depends on 9) The device, according to claim 9, comprising a primary braking assembly, mounted in said movable insert, and a secondary braking assembly, integral with said casing; said primary braking assembly dissipating energy by sliding, with friction, with respect to said secondary braking assembly. ### Claim 14 (depends on 9) The device, according to claim 9, wherein said damping means comprises a structure formed by two distinct and concatenated geometries which work in parallel. ### Claim 15 (depends on 13) The device, according to claim 13, wherein said secondary braking assembly comprises two pairs of blades which create friction during the translation of said movable insert.