# US 2019/0168044 A1 · Control System for a Fire-Extinguishing Installation, and Safety Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168044 A1 - Document ID: US20190168044A1 - Status: Published application - Kind: A1 - Application number: 16/324,082 - Filed: 2017-08-08 - Published: 2019-06-06 - Earliest claimed: 2016-08-09 - Assignees: Minimax GmbH & Co. KG - Applicants: Minimax GmbH & Co. KG - Inventors: Chrysafis ZLATINTSIS - Web page: https://patentgrep.com/patent/US20190168044A1 ## CPC - A62C 35/64: pressurised - A62C 35/68: Details, e.g. of pipes or valve systems (valves in general F16K) - A62C 37/00: Control of fire-fighting equipment (heat-sensitive devices G01K) - F16K 15/04: shaped as balls - F16K 31/084: {the magnet being used only as a holding element to maintain the valve in a specific position, e.g. check valves (F16K31/082, F16K31/086 take precedence)} - 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) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} ## Abstract The invention relates to a control system (10) of a fire-extinguishing installation, having at least one control line (11) for controlling a controlling procedure of the fire-extinguishing installation, wherein the control line (11) in a passive operation is unpressurized and the control line (11) in a control operation is impinged with a control pressure, and a safety device (12), fluidically connected to the control line (11), having a pressure equalization chamber (13) in which a holding element (3) and a movable closure element (2) are disposed. It is proposed that the closure element (2) is disposed in the pressure equalization chamber (13) so as to be displaceable between a first terminal position and a second terminal position, and the holding element (3) is configured for exerting on the closure element (2) a restoring force in the direction of the first terminal position, wherein the restoring force on the closure element (2) in the second terminal position of the closure element (2) is higher than the weight force of the closure element (2), and in the first terminal position of the closure element (2) is lower than a pressure force that in the control operation acts as a function of the control pressure on the closure element (2). ## Claims ### Claim 1 A control system (10) of a fire-extinguishing installation, comprising: at least one control line (11) for controlling a control procedure of the fire-extinguishing installation, wherein the control line (11) in a passive operation is unpressurized and the control line (11) in a control operation is subjected to a control pressure; and a safety device (12) in fluid communication with the control line (11), having a pressure equalization chamber (13) in which a holding element (3) and a movable closure element (2) are disposed, wherein the closure element (2) is disposed in the pressure equalization chamber (13) so as to be displaceable between a first terminal position and a second terminal position; wherein the holding element (3) is configured for exerting on the closure element (2) a restoring force in the direction of the first terminal position, and wherein the restoring force acting on the closure element (2) in the second terminal position of the closure element (2) is higher than the weight force of the closure element (2), and in the first terminal position of the closure element (2) is lower than a pressure force that during the control operation acts on the closure element (2) as a function of the control pressure. ### Claim 2 (depends on 1) The control system (10) as claimed in claim 1, wherein the holding element (3) has a magnet, and the closure element (2) is at least in part configured so as to be magnetic or capable of being magnetized. ### Claim 3 (depends on 1) The control system (10) as claimed in claim 1, wherein the safety device (12) has a housing (1) which has an inlet opening (8) located between the pressure equalization chamber (13) and the control line (11). ### Claim 4 (depends on 3) The control system (10) as claimed in claim 3, wherein the closure element (2) is configured for at least partially closing the inlet opening (8) when in the first terminal position. ### Claim 5 (depends on 3) The control system (10) as claimed in claim 3, wherein the closure element (2) is configured for permitting fluid communication between the inlet opening (8) and an outlet opening (7) of the pressure equalization chamber (13) when the closure element (2) is disposed between the first and the second terminal position. ### Claim 6 (depends on 5) The control system (10) as claimed in claim 5, wherein the closure element (2) in the second terminal position is configured for closing the outlet opening (7) of the pressure equalization chamber (13) and for preventing an escape of the control pressure in the control line (11). ### Claim 7 (depends on 5) The control system (10) as claimed in claim 5, wherein the outlet opening (7) is fluidically connected to the environment. ### Claim 8 (depends on 3) The control system (10) as claimed in claim 3, wherein a guide sleeve (5) for guiding the closure element (2) is disposed in the housing (1). ### Claim 9 (depends on 6) The control system (10) as claimed in claim 6, wherein a sealing element (6) is disposed in front of the outlet opening (7) in the pressure equalization chamber (13), the closure element (2) being configured to bear in a fluid-tight manner on said sealing element (6) when in the second terminal position. ### Claim 10 (depends on 9) The control system (10) as claimed in claim 9, wherein the holding element (3) is configured as a ring-shaped permanent magnet. ### Claim 11 (depends on 9) The control system (10) as claimed in claim 9, wherein the closure element (2) has a partially spherical, surface portion (15), wherein the surface position (15) is configured to bear in a fluid-tight manner on the sealing element (6) when the closure element (2) is in the second terminal position. ### Claim 12 (depends on 8) The control system (10) as claimed in claim 8, wherein the safety device (12) has a connection element (4) for fluidically connecting the safety device (12) to the control line (11) to be in fluid communication, wherein the connection element (4) has an inlet duct (9) for the connection between the control line (11) and the pressure equalization chamber (13). ### Claim 13 (depends on 12) The control system (10) as claimed in claim 12, wherein the holding element (3) is disposed and clamped between the connection element (4) and the guide sleeve (5). ### Claim 14 (depends on 13) The control system (10) as claimed in claim 13, wherein the sealing element (6) is disposed and clamped between the guide sleeve (5) and the housing (1). ### Claim 15 A safety device (12) for a control system (10) for controlling a pneumatic or hydraulic fire-extinguishing installation, wherein the safety device (12) is configured to be connected to a control line (11) in fluid communication, said safety device (12) comprising: a pressure equalization chamber (13) in which a holding element (3) and a movable closure element (2) are disposed, wherein the closure element (2) is disposed in the pressure equalization chamber (13) so as to be displaceable between a first terminal position and a second terminal position; and wherein the holding element (3) is configured for exerting on the closure element (2) a restoring force in the direction of the first terminal position, and wherein the restoring force action on the closure element (2) in the second terminal position of the closure element (2) is higher than the weight force of the closure element (2), and in the first terminal position of the closure element (2) is lower than a pressure force that during the control operation acts on the closure element (2) as a function of the control pressure.