# US 11,994,300 B2 · Pull-out guide and microwave cooking appliance or industrial oven having a pull-out guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,300 B2 - Document ID: US11994300B2 - Status: Granted - Kind: B2 - Application number: 16/982,771 - Filed: 2019-03-18 - Published: 2021-01-14 - Granted: 2024-05-28 - Earliest claimed: 2018-03-22 - Assignees: Paul Hettich GmbH & Co. KG - Applicants: Paul Hettich GmbH & Co. KG - Inventors: Andreas Löh; Johann-Sebastian Lessmann; Johannes Tiwisina; Sergej Maier; Johann Braun - Web page: https://patentgrep.com/patent/US11994300B2 ## CPC - F24C 15/168: {with telescopic rail systems} - H05B 6/6408: {Supports or covers specially adapted for use in microwave heating apparatus} - A47J 36/027: {Cooking- or baking-vessels specially adapted for use in microwave ovens; Accessories therefor} - F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract A pull-out guide for a microwave cooking appliance or an industrial oven includes a body rail and a running rail that is movable relative thereto, for depositing a carrier. The pull-out guide includes an electrical contact for electrically contacting the running rail with the body rail. ## Claims ### Claim 1 A pull-out guide for a microwave cooking appliance or an industrial oven, the pull-out guide comprising: a body rail; a running rail, which is moveable relative to the body rail and configured for depositing a carrier; and means for electrically contacting the running rail with the body rail, wherein the means for electrical contacting comprise at least one contact roller rotatably mounted on the body rail and/or the running rail and contacts a respective other one of the body and running rails, wherein the at least one contact roller is arranged in such a way that the at least one contact roller moves into the respective other one of the body and running rails when the pull-out guide is retracted, wherein at least one ramp is arranged in an area of the respective other one of the body and running rails into which the at least one contact roller enters, wherein the at least one contact roller is mounted resiliently, and wherein the at least one contact roller is configured as a guard locking mechanism and/or a self-closing mechanism. ### Claim 2 (depends on 1) The pull-out guide of claim 1, wherein the pull-out guide is a full-extension pull-out guide having a middle rail, which is movable relative to the body rail and the running rail. ### Claim 3 (depends on 2) The pull-out guide of claim 2, wherein the means for electrical contact also electrically connect the running rail and/or the body rail to the middle rail. ### Claim 4 (depends on 1) The pull-out guide of claim 1, wherein the means for electrical contacting of the body rail and the running rail establish an electrical connection at least in one retracted position of the pull-out guide. ### Claim 5 (depends on 1) The pull-out guide of claim 1, wherein the at least one contact roller is also configured to implement aivar a stop function. ### Claim 6 (depends on 1) The pull-out guide of claim 1, wherein the at least one contact roller is mounted with play. ### Claim 7 (depends on 1) The pull-out guide of claim 1, wherein the at least one contact roller has an electrically conductive material, which is a metal, graphite, and/or an electrically conductive plastic. ### Claim 8 (depends on 7) The pull-out guide of claim 7, wherein the at least one contact element has a core, which is completely or partially surrounded by the electrically conductive material. ### Claim 9 (depends on 8) The pull-out guide of claim 8, wherein the electrically conductive material is a yielding material comprising a knitted or crocheted fabric of conductive threads. ### Claim 10 (depends on 8) The pull-out guide of claim 8, wherein the electrically conductive material is a yielding material comprising conductive brushes or bristles. ### Claim 11 (depends on 8) The pull-out guide of claim 8, wherein the electrically conductive material is a yielding material comprising an electrically conductive plastic. ### Claim 12 (depends on 1) The pull-out guide of claim 1 the at least one contact roller is configured in such a way that the at least one contact roller holds the pull-out guide in a retracted position by frictional and/or positive locking. ### Claim 13 (depends on 1) The pull-out guide of claim 1, wherein at least one front cover is formed or fixed to an end region of the body rail and/or the running rail, and wherein the at least one front cover is coated or covered with an electrically non- conductive material. ### Claim 14 A microwave cooking appliance or industrial oven, comprising: a body; and a pull-out guide comprising a body rail affixed to the body; a running rail, which is moveable relative to the body rail and configured for depositing a carrier; and means for electrically contacting the running rail with the body rail, wherein the means for electrical contacting comprise at least one contact roller rotatably mounted on the body rail and/or the running rail and contacts a respective other one of the body and running rails, wherein the at least one contact roller is arranged in such a way that the at least one contact roller moves into the respective other one of the body and running rails when the pull-out guide is retracted, wherein at least one ramp is arranged in an area of the respective other one of the body and running rails into which the at least one contact roller enters, wherein the at least one contact roller is mounted resiliently, and wherein the contact roller is configured as a guard locking mechanism or a self-closing mechanism.