# US 11,725,898 B2 · Suppressor for a firearm > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,725,898 B2 - Document ID: US11725898B2 - Status: Granted - Kind: B2 - Application number: 17/664,090 - Filed: 2022-05-19 - Published: 2022-09-01 - Granted: 2023-08-15 - Earliest claimed: 2020-04-22 - Assignees: Battle Born Supply Co. - Applicants: Battle Born Supply Co. - Inventors: Ian Muceus; Adam Stempeck - Web page: https://patentgrep.com/patent/US11725898B2 ## CPC - F41A 21/30: Silencers - B22F 5/106: {Tube or ring forms} - F41A 21/32: Muzzle attachments or glands (F41A21/26, F41A21/30, F41A21/46 take precedence {; for projectile velocity measurements G01P3/665, G01P3/685}) - B22F 10/00: Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) - B22F 2005/004: {Article comprising helical form elements (B22F5/085 takes precedence)} - B33Y 10/00: Processes of additive manufacturing - B33Y 70/00: Materials specially adapted for additive manufacturing - B33Y 80/00: Products made by additive manufacturing - Y02P 10/25: Process efficiency - F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract Suppressors for firearms are disclosed. In some embodiments, a suppression core comprises an annular cylinder surrounding a center bore, and a baffle structure surrounding the annular cylinder. The annular cylinder and the baffle structure are concentric. The baffle structure comprises a triply periodic minimal surfaces (TPMS) structure. At a transition between the annular cylinder and the baffle structure, a plurality of first openings in the annular cylinder form continuous paths with a plurality of second openings in the baffle structure. In some embodiments, a suppression core comprises an annular cylindrical shape having a center bore, the suppression core comprising a TPMS structure. The TPMS has walls within the TPMS structure. A wall thickness of the walls of the TPMS structure or a unit cell size of the TPMS structure varies within the suppression core. ## Claims ### Claim 1 A suppressor for a firearm comprising: a suppression core comprising an annular cylinder surrounding a center bore, and a baffle structure surrounding the annular cylinder, the annular cylinder and the baffle structure being concentric; wherein the baffle structure comprises a triply periodic minimal surfaces (TPMS) structure; and wherein at a transition between the annular cylinder and the baffle structure, a plurality of first openings in the annular cylinder form continuous paths with a plurality of second openings in the baffle structure. ### Claim 2 (depends on 1) The suppressor of claim 1 wherein a wall thickness of walls in the TPMS structure varies in a longitudinal direction. ### Claim 3 (depends on 1) The suppressor of claim 1 wherein a wall thickness of walls in the TPMS structure varies in a radial direction. ### Claim 4 (depends on 1) The suppressor of claim 1 wherein a wall thickness of walls in the TPMS structure is constant throughout the TPMS structure. ### Claim 5 (depends on 1) The suppressor of claim 1 wherein a unit cell size of the TPMS structure varies in a longitudinal direction. ### Claim 6 (depends on 1) The suppressor of claim 1 wherein a unit cell size of the TPMS structure varies in a radial direction. ### Claim 7 (depends on 1) The suppressor of claim 1 wherein the plurality of first openings in the annular cylinder and the plurality of second openings in the baffle structure have a parameter that matches in size with each other, and the plurality of first openings and the plurality of second openings are approximately aligned with each other. ### Claim 8 (depends on 7) The suppressor of claim 7 wherein: the parameter is a length in a longitudinal direction of the suppression core; each first opening in the plurality of first openings has a first length in the longitudinal direction; and at the transition between the annular cylinder and the baffle structure, each second opening in the plurality of second openings has a second length in the longitudinal direction matching the first length. ### Claim 9 (depends on 1) The suppressor of claim 1 wherein the annular cylinder comprises an array of structures having rectangular cross-sections in a longitudinal direction. ### Claim 10 (depends on 1) The suppressor of claim 1 wherein the TPMS structure comprises a Batwing geometry. ### Claim 11 A suppressor for a firearm comprising: a suppression core comprising an annular cylindrical shape having a center bore, the suppression core comprising a triply periodic minimal surfaces (TPMS) structure; wherein the TPMS structure has walls within the TPMS structure; wherein a wall thickness of the walls of the TPMS structure or a unit cell size of the TPMS structure varies within the suppression core; wherein an annular cylinder is adjacent to the center bore, wherein the TPMS structure surrounds the annular cylinder; and wherein a plurality of first openings in the annular cylinder and a plurality of second openings in the TPMS structure surrounding the annular cylinder have a parameter that matches in size with each other, and the plurality of first openings and the plurality of second openings are approximately aligned with each other. ### Claim 12 (depends on 11) The suppressor of claim 11, wherein the wall thickness of the TPMS structure varies in a longitudinal direction. ### Claim 13 (depends on 11) The suppressor of claim 11, wherein the wall thickness of the TPMS structure varies in a radial direction. ### Claim 14 (depends on 11) The suppressor of claim 11, wherein the unit cell size of the TPMS structure varies in a longitudinal direction. ### Claim 15 (depends on 11) The suppressor of claim 11, wherein the unit cell size of the TPMS structure varies in a radial direction. ### Claim 16 (depends on 11) The suppressor of claim 11, wherein the wall thickness or the unit cell size varies in a portion of the suppression core. ### Claim 17 (depends on 11) The suppressor of claim 11, wherein the walls form channels within the TPMS structure, the channels providing flow pathways connected to the center bore. ### Claim 18 (depends on 11) The suppressor of claim 11, wherein the suppression core is made of a material, and wherein different materials are used in different parts of the suppression core. ### Claim 19 (depends on 11) The suppressor of claim 11, wherein the annular cylinder comprises an array of structures having rectangular cross-sections in a longitudinal direction.