# US 10,118,059 B2 · Automatic fire extinguishing equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,059 B2 - Document ID: US10118059B2 - Status: Granted - Kind: B2 - Application number: 14/423,630 - Filed: 2013-12-25 - Published: 2016-07-07 - Granted: 2018-11-06 - Earliest claimed: 2013-09-27 - Assignees: Nichibou Co., Ltd.; Mitsui Chemicals Industrial Products Ltd. - Applicants: Nichibou Co., Ltd.; Mitsui Chemicals Industrial Products Ltd. - Inventors: Kenji Taniguchi; Masaya Iwasaki - Web page: https://patentgrep.com/patent/US10118059B2 ## CPC - A62C 3/16: in electrical installations, e.g. cableways - A62C 3/07: in vehicles, e.g. in road vehicles - A62C 35/10: Containers destroyed or opened by flames or heat - A62C 35/023: {the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas (for foam generation A62C5/02)} - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) ## Abstract The present invention provides a compact automatic fire extinguishing equipment that can be installed near an object of fire extinguishing for which there is limited space therearound for a long term in a state of maintenance-free and that can extinguish a fire immediately on the occasion of a fire. The fire extinguishing equipment consists of a fire extinguishing agent 14 and a sealed container 12 filled with the fire extinguishing agent 14. And the fire extinguishing agent 14 is comprised with a compound that is liquid at 25 degrees Celsius (room temperature) at least and that has a boiling point of at least 75 degrees Celsius or less, having fire extinguishing effect. The container 12 is formed with lamination of gas barrier layer 16 and the thermoplastic resin layer 20, and the gas barrier layer 16 consists of ethylene-vinyl-alcohol copolymer resin (ethylene vinyl alcohol copolymer: EVOH). ## Claims ### Claim 1 An automatic fire extinguishing equipment, comprising: a fire extinguishing agent; and a sealed container filled with the fire extinguishing agent; wherein the fire extinguishing agent is made of a compound having a fire extinguishing effect, the compound having a boiling point of 75 degrees Celsius or less, the compound being a liquid at 25 degrees Celsius or higher; wherein the sealed container comprises a gas barrier layer laminated with at least one thermoplastic resin layer; wherein the gas barrier layer comprises an ethylene—vinyl alcohol copolymer resin; wherein the thickness of the gas barrier layer is 0.01 mm to 1 mm; and wherein a thickness of the at least one thermoplastic resin layer is 0.5 mm to 2.5 mm. ### Claim 2 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the gas barrier layer is laminated in between two thermoplastic resin layers. ### Claim 3 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the gas barrier layer and the at least one thermoplastic resin layer are laminated via an adhesive layer. ### Claim 4 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the at least one thermoplastic resin layer comprises a polyethylene resin, a polypropylene resin or another polyolefin resin. ### Claim 5 (depends on 4) The automatic fire extinguishing equipment described in claim 4, wherein the at least one thermoplastic resin comprises the polyethylene resin, and wherein the polyethylene resin has a density of 930 kg/m3 to 960 kg/m3. ### Claim 6 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein a vapor pressure of the fire extinguishing agent is more than 0.6 MPa at 150 degrees Celsius. ### Claim 7 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the fire extinguishing agent is CF3CF2C(O)CF(CF3)2. ### Claim 8 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein 50% to 90% of a capacity within the sealed container is occupied with the fire extinguishing agent, and wherein 10% to 50% of the capacity within the sealed container is occupied with gas. ### Claim 9 (depends on 8) The automatic fire extinguishing equipment described in claim 8, wherein the gas is pressurized. ### Claim 10 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein a withstand level at 25 to 75 degrees Celsius of the sealed container is more than 0.1 MPa. ### Claim 11 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the sealed container comprises a pipe, each end of the pipe being closed by an electro-fusion joint. ### Claim 12 (depends on 11) The automatic fire extinguishing equipment described in claim 11, wherein a ratio obtained by dividing an outer diameter of the pipe by a wall thickness of the pipe is 6 to 18. ### Claim 13 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein an outer diameter of the sealed container is 4 mm to 40 mm. ### Claim 14 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the sealed container is surrounded by a spiral protective material. ### Claim 15 (depends on 1) The automatic fire extinguishing equipment described in claim 1, wherein the automatic fire extinguishing equipment is configured to extinguish a fire of a switchboard, a distribution board, an electricity board or a rechargeable battery.