# US 2013/0156410 A1 · Device for transporting and heating a liquid for a vehicle window wiping system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156410 A1 - Document ID: US20130156410A1 - Status: Published application - Kind: A1 - Application number: 13/719,516 - Filed: 2012-12-19 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Assignees: Valeo Systèmes d'Essuyage - Inventors: Jean-Michel Jarasson - Web page: https://patentgrep.com/patent/US20130156410A1 ## CPC - B60S 1/488: {electrically} - B60S 1/50: Arrangement of reservoir - F24H 1/12: in which the water is kept separate from the heating medium - B60S 1/524: {arranged in wiper blades} - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR - F24H: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22) ## Abstract The invention relates to a device for transporting and heating 10, 15 a liquid intended to be installed between a means for circulating the liquid and a wiper brush constituting a wiping system of a vehicle window, comprising a wall 21 delimiting at least one liquid circulation duct 22, 23 and in which is embedded a heating element 24 comprising at least one first electrically conductive strand 25 and one second electrically conductive strand 26, in which is provided a spacing means 31 which extends at least between said strands 25, 26. ## Claims ### Claim 1 A device for transporting and heating a liquid installed between a means for circulating the liquid and a wiper brush constituting a wiping system of a vehicle window, the device comprising: a wall delimiting at least one liquid circulation duct and in which is embedded a heating element comprising at least one first electrically conductive strand and one second electrically conductive strand, in which is provided a spacing means common to the first strand and to the second strand and which extends at least between said strands. ### Claim 2 (depends on 1) The device according to claim 1, wherein the spacing means defines a determined distance between the first and second strands in order to promote a dissipation of calories generated by the strands. ### Claim 3 (depends on 1) The device according to one of claim 1, wherein a first duct is provided that is separated from a second duct by the wall, the heating element extending between the first duct and the second duct. ### Claim 4 (depends on 3) The device according to claim 3, wherein the first duct and the second duct each have a duct centre through which passes a first straight line, and the first strand and the second strand each have a strand centre through which passes a second straight line, the second straight line being at right angles to the first straight line. ### Claim 5 (depends on 3) The device according to claim 3, wherein the first duct and the second duct each have a duct centre through which passes a first straight line, and the first strand and the second strand each have a strand centre through which passes a second straight line, the second straight line being parallel to the first straight line. ### Claim 6 (depends on 5) The device according to claim 5, wherein the second straight line is merged with the first straight line. ### Claim 7 (depends on 1) The device according to claim 1, wherein an internal face of the at least one liquid circulation duct comprises a first portion of a form different from a second portion of said internal face, the first portion being arranged to maximize a transfer of calories between the heating element and the liquid which can circulate in the at least one liquid circulation duct. ### Claim 8 (depends on 7) The device according to claim 7, wherein the first portion is rectilinear whereas the second portion is curved. ### Claim 9 (depends on 8) The device according to claim 8, wherein the rectilinear first portion extends along a third straight line parallel to a second straight line passing through a centre of the first strand and a centre of the second strand. ### Claim 10 (depends on 7) The device according to claim 7, wherein the first portion is curved in a convex manner whereas the second portion is curved in a concave manner. ### Claim 11 (depends on 7) The device according to claim 7, wherein the wall of the at least one liquid circulation duct which extends between one of the first and second strand and the first portion of the internal face has a constant thickness. ### Claim 12 (depends on 1) The device according to claim 1, further comprising at least two ducts and at least two heating elements each consisting of two strands spaced apart from one another by the spacing means, in which is provided a divisible area of the wall arranged between the two heating elements. ### Claim 13 (depends on 12) The device according to claim 12, wherein the divisible area is formed by a thinned portion of the wall. ### Claim 14 (depends on 1) The device according to claim 1, wherein the spacing means is in contact with the first strand and the second strand. ### Claim 15 (depends on 1) A system for supplying and/or distributing screen-wash liquid to be sprayed onto a window of a vehicle comprising: at least one tank; one liquid circulation means; one means for spraying said liquid; and one device for transporting and heating said liquid according to claim 1.