# US 11,114,823 B2 · Non-rotationally symmetrical spark gap, in particular horn spark gap with deion chamber > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,823 B2 - Document ID: US11114823B2 - Status: Granted - Kind: B2 - Application number: 16/652,070 - Filed: 2019-04-09 - Published: 2021-03-04 - Granted: 2021-09-07 - Earliest claimed: 2018-05-24 - Assignees: Dehn SE - Applicants: Dehn SE + Co KG - Inventors: Uwe Strangfeld; Stephan Hierl; Stefan Schön - Web page: https://patentgrep.com/patent/US11114823B2 ## CPC - H01T 1/02: Means for extinguishing arc - H01T 4/04: Housings (H01T4/06 takes precedence) - H01T 4/14: Arcing horns (associated with insulators H01B17/46) - H01T: SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES (overvoltage protection circuits H02H) ## Abstract The invention relates to a non-rotationally symmetrical spark gap, in particular a horn spark gap with a deion chamber, a multi-part insulating material housing (1) as a support and receiving body for the horn electrodes and the deion chamber, means for conducting the gas flow related to the arc, wherein the insulating material housing (1) is divided on the plane defined by the horn electrodes and has two half shells, and plug or screw connections (4, 5) which lead out on the end face. According to the invention, with the exception of the sections of the plug or screw connections (4, 5) leading out, the insulating material housing is surrounded on all sides by a cooling surface (14) which is near the housing and lies against the housing surface, and the cooling surface (14) is at least partly supported on webs (8) which are designed to conduct the gas flow on the outer surface of the half shells. ## Claims ### Claim 1 A non-rotationally symmetrical horn spark gap with horn electrodes, a deion chamber and a multi-part insulating material housing as a support and receiving body (1) for the horn electrodes and the deion chamber (2), and means for conducting a gas flow related to an arc, wherein the insulating material housing is divided on a plane (3) defined by the horn electrodes and has two half shells, the half shells having an outer surface, and plug or screw connections (4; 5) which are lead out on an end face; characterized in that, with exception of sections of the plug or screw connections (4; 5) which are lead out, the insulating material housing is surrounded on all sides by a cooling surface (7; 14) formed as a sheathing which is near the housing and lies against the housing surface, wherein the cooling surface (7; 14) formed as a sheathing is at least partly supported on webs (8) present on the outer surface of the half shells which are designed to conduct the gas flow on the outer surface of the half shells. ### Claim 2 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that the cooling surface (7;14) formed as a sheathing is jointly connected to the half shells. ### Claim 3 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that the cooling surface (7;14) formed as a sheathing has beads or embossings (13; 23) for increasing stability. ### Claim 4 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that the sheathing is composed of a material that is of good heat conduction. ### Claim 5 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that, at a front-side end of the plug or screw connections (4; 5) which are lead out, a slip body (16) is slid upon the half shells, which overlays at least one fastening lug (15) at least in part, wherein the at least one fastening lug (15) is an integral part of the sheathing. ### Claim 6 (depends on 5) The non-rotationally symmetrical horn spark gap according to claim 5, characterized in that in a covering area of the slip body (16) overlaying the fastening lug, bores or recesses (20; 21) for force-fit connecting are provided in the support and receiving body (1). ### Claim 7 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that in a realization of the sheathing (14) from an electrically conductive material, an insulating layer (22) is disposed between the outer surface of the half shells and the sheathing. ### Claim 8 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that, for enlarging a heat-relevant surface area, outer sides of the sheathing have a structuring (23). ### Claim 9 (depends on 5) The non-rotationally symmetrical horn spark gap according to claim 5, characterized in that, for an easier overlaying of the fastening lugs (15), the slip body (16) has a wedge inclination (17). ### Claim 10 (depends on 1) The non-rotationally symmetrical horn spark gap according to claim 1, characterized in that the sheathing is realized as a hood that is slid on.