# US 2014/0196918 A1 · Water/foam fire extinguisher with adjustable foam consistency > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196918 A1 - Document ID: US20140196918A1 - Status: Published application - Kind: A1 - Application number: 13/702,072 - Filed: 2012-12-04 - Published: 2014-07-17 - Earliest claimed: 2010-06-04 - Assignees: HNE Technologie AG - Applicants: Hne Technologie AG - Inventors: Reinhard Effenberger; Claus Casimir - Web page: https://patentgrep.com/patent/US20140196918A1 ## CPC - A62C 13/70: characterised by means for releasing the pressure gas - A62C 5/02: of foam - A62C 13/003: {Extinguishers with spraying and projection of extinguishing agents by pressurised gas} - A62C 13/66: with extinguishing material and pressure gas being stored in separate containers - 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 A portable or wheeled fire extinguishing apparatus which is operable by water or foam, comprising a pressure resistant extinguishing medium container, a pressurized gas bottle for pressurizing the extinguishing medium container for expelling the extinguishing medium, and an extinguishing medium gun which is connected to the extinguishing medium container by a pressure resistant hose, wherein additional pressurized gas can be introduced into the extinguishing medium supplied to the extinguishing medium gun. ## Claims ### Claim 1 A portable or wheeled fire extinguisher which is operable with water or foam, comprising: a pressure resistant extinguishing medium container (1), a pressurized gas bottle (2) for pressurizing the extinguishing medium container (1) for expelling the extinguishing medium, and an extinguishing medium gun (3) which is in communication with the extinguishing medium container (1) via a pressure resistant extinguishing medium hose (4), the extinguishing medium line extending between the extinguishing medium container (1) and the extinguishing gun (3) including a mixing armature (6) to which a pressurized gas line is connected via which, during expulsion of the extinguishing medium from the extinguishing medium container (1), additional pressurized gas can be admitted to the extinguishing medium supplied to the extinguishing gun (3), and the mixing armature (6) including a switchable admixture valve (6a) which, by means of an operating organ (61) is manually adjustable selectively between a closed and an open position. ### Claim 2 (depends on 1) The fire extinguisher according to claim 1, wherein the admixing valve is adjustable in a stepwise or stepless fashion between the closed and the open position. ### Claim 3 (depends on 1) The fire extinguisher according to claim 1, wherein the mixing armature (6) is mounted in the form of a valve block to the extinguishing medium container (1) and includes an extinguishing medium inlet connected to an outlet of the extinguishing medium container (1) and an extinguishing medium outlet connected to the extinguishing medium hose (4). ### Claim 4 (depends on 1) The fire extinguisher according to claim 1, wherein the extinguishing medium container (1) includes a separate water container (1a) and a separate foam medium container (16) and wherein the mixing armature (6) is provided with an admixing valve (6b) which is movable between a closed and an open position for a selective admixing of foam medium into a water outlet line (18) extending from the water container (1a). ### Claim 5 (depends on 4) The fire extinguisher according to claim 4, wherein the mixing armature is in the form of a valve block (6) mounted onto the extinguishing medium container (1) and includes the admixing valve (6a) for admixing pressurized gas and an admixing valve (6b) for admixing foam medium to the extinguishing medium. ### Claim 6 (depends on 4) The fire extinguisher according to claim 4, wherein the admixing valve (6b) for admixing the foam medium is adjustable between its closed and its open positions in a stepped or a stepless manner. ### Claim 7 (depends on 4) The fire extinguisher according to claim 4, wherein the admixing of pressurized gas and the admixing of foam medium into the water outlet line (18) of the water container (1a) occurs at a common input location or neighboring input locations. ### Claim 8 (depends on 4) The fire extinguisher according to claim 4, wherein the admixing valve (6b) for the admixing of the foam medium is coupled with a gas pressure valve which, upon opening the foam medium admixing valve (6b), opens the supply of pressurized gas to the foam medium container (1b) for the expulsion of foam medium. ### Claim 9 (depends on 1) The fire extinguisher according to claim 1, wherein the extinguishing gun (3) is provided with a changeover mechanism for connecting at least two different jet tubes, that is, a foam tube (34) and a spray jet tube (35) to the extinguishing medium outlet of the extinguishing gun for effective operation therewith. ### Claim 10 (depends on 1) The fire extinguisher according to claim 1, wherein a foam tube (34) connected to the extinguishing gun is provided in its rear area with a rotatable or axially movable sleeve (38) which has openings (39), and the rear end area of the foam tube (34) is provided with corresponding openings wherein, upon displacing the sleeve (38) by axial sliding or rotation at the rear end of the foam tube (34), the openings of the foam tube are adjustable between a fully closed state in which they are covered by the sleeve (38) and a partially or fully open state in which the openings of the foam tube (34) are aligned with the openings of the sleeve (38).