# US 10,767,958 B2 · Air gun > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,958 B2 - Document ID: US10767958B2 - Status: Granted - Kind: B2 - Application number: 16/142,205 - Filed: 2018-09-26 - Published: 2019-04-11 - Granted: 2020-09-08 - Earliest claimed: 2017-10-06 - Assignees: Ceska Zbrojovka A.S. - Applicants: Ceska Zbrojovka A.S. - Inventors: Michal Rotrekl; Ondrej Vonasek; Paul Van Wyk; Jakub Vicher - Web page: https://patentgrep.com/patent/US10767958B2 ## CPC - F41B 11/60: characterised by the supply of compressed gas - F41B 11/73: Sealing arrangements; Pistons - F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00) ## Abstract An air gun with a barrel, provided with a bore, the bore being connected to the supply channel of the compressed medium. The supply channel is terminated with an annular distribution space arranged around the axis of the barrel, distribution channels connected to the barrel bore running from the annular distribution space towards the axis of the barrel. ## Claims ### Claim 1 An air gun with a barrel provided with a bore, the barrel comprising a horizontal barrel axis and the bore being connected to a supply channel of a compressed medium, wherein the supply channel is terminated with an annular distribution space arranged around the horizontal barrel axis, while distribution channels connected to the bore run in a star-like pattern from the annular distribution space towards the axis of the barrel, wherein the annular distribution space is located on an outer perimeter of: (i) the barrel, (ii) an insert that bears on a rear face of the barrel, said insert comprising a central opening that continues the barrel bore and that is coaxial with the horizontal barrel axis, or (iii) a sliding barrel lock, wherein the bore comprises a horizontal bore axis and the distribution channels are inclined with regard to the horizontal bore axis at an angle of α=30 to 90 degrees, wherein the distribution channels are arranged in the insert and the distribution channels lead into the central opening. ### Claim 2 (depends on 1) The air gun according to claim 1, wherein the distribution channels comprise a combined cross-sectional distribution area and the barrel bore comprises a bore cross-sectional area, wherein the combined cross-sectional distribution area is equal to or greater than the bore cross-sectional area. ### Claim 3 (depends on 1) The air gun according to claim 1, wherein the annular distribution space is arranged on the outer perimeter of the insert. ### Claim 4 (depends on 1) The air gun according to claim 1, wherein the annular distribution space is arranged between two sealing O-rings. ### Claim 5 (depends on 1) The air gun according to claim 1, wherein the annular distribution space is arranged between a sealing O-ring and a peripheral thread. ### Claim 6 (depends on 1) The air gun according to claim 1, wherein the annular distribution space is arranged between two sealing O-rings. ### Claim 7 (depends on 1) The air gun according to claim 1, wherein the annular distribution space is arranged between a sealing O-ring and a peripheral thread. ### Claim 8 An air gun with a barrel provided with a bore, the barrel comprising a horizontal barrel axis and the bore being connected to a supply channel of a compressed medium, wherein the supply channel is terminated with an annular distribution space arranged around the horizontal barrel axis, while distribution channels connected to the bore run in a star-like pattern from the annular distribution space towards the axis of the barrel, wherein the annular distribution space is located on an outer perimeter of: (i) the barrel, (ii) an insert that bears on a rear face of the barrel, said insert comprising a central opening that continues the barrel bore and that is coaxial with the horizontal barrel axis, or (iii) a sliding barrel lock, wherein the bore comprises a horizontal bore axis and the distribution channels are inclined with regard to the horizontal bore axis at an angle of α=30 to 90 degrees, wherein the distribution channels are arranged in the sliding barrel lock, wherein the sliding barrel lock comprises a front face that bears on the rear face of the barrel, the barrel lock being provided with a central opening that continues the barrel bore, and wherein the distribution channels lead into the central opening. ### Claim 9 (depends on 8) The air gun according to claim 8, wherein the distribution channels comprise a combined cross-sectional distribution area and the barrel bore comprises a bore cross-sectional area, wherein the combined cross-sectional distribution area is equal to or greater than the bore cross-sectional area. ### Claim 10 (depends on 8) The air gun according to claim 8, wherein the annular distribution space is positioned on the outer perimeter of the barrel lock.