# US 10,766,155 B2 · Heating delivery element for a shaving razor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,155 B2 - Document ID: US10766155B2 - Status: Granted - Kind: B2 - Application number: 15/866,596 - Filed: 2018-01-10 - Published: 2018-07-26 - Granted: 2020-09-08 - Earliest claimed: 2017-01-20 - Assignees: The Gillette Company - Applicants: The Gillette Company LLC - Inventors: Norbert Broemse - Web page: https://patentgrep.com/patent/US10766155B2 ## CPC - B26B 21/48: Heating means - B26B 21/4056: {Sensors or controlling means} - H05B 3/36: heating conductor embedded in insulating material - B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A heat delivery element for a shaving razor with a face plate having a skin contacting surface and an opposing inner surface. A heater having a heater track is positioned between an upper dielectric layer and a lower dielectric layer. A heat dispersion layer having a lower surface directly contacts the inner surface of the face plate. An upper surface of the heat dispersion layer directly contacts the lower dielectric layer of the heater. ## Claims ### Claim 1 A heat delivery element for a shaving razor comprising: a face plate having a skin contacting surface and an opposing inner surface; a heater having a heater track positioned between an upper dielectric layer and a lower dielectric layer; and a heat dispersion layer having a lower surface directly contacting the inner surface of the face plate and an upper surface directly contacting the lower dielectric layer of the heater; and a compressible thermal insulation layer positioned on one of the dielectric layers. ### Claim 2 (depends on 1) A heat delivery element of claim 1 wherein at least one of the upper dielectric layer and the lower dielectric layer comprises polyimide. ### Claim 3 (depends on 1) The heat delivery element of claim 1 wherein the heat dispersion layer comprises graphite foil. ### Claim 4 (depends on 3) The heat delivery element of claim 3 wherein the heat dispersion layer is compressed by 20% to 50% of an original thickness. ### Claim 5 (depends on 4) The heat delivery element of claim 4 wherein the heat dispersion layer has a compressed thickness of 50 to 300 μm. ### Claim 6 (depends on 1) The heat delivery element of claim 1 wherein the compressible thermal insulation layer has a thermal conductivity less than 0.10 W/mk. ### Claim 7 (depends on 1) The heat delivery element of claim 1 wherein the compressible thermal insulation layer comprises a compressible foam. ### Claim 8 (depends on 7) The heat delivery element of claim 7 wherein the compressible thermal insulation layer is compressed 30 percent to 70 percent from an original thickness. ### Claim 9 (depends on 7) The heat delivery element of claim 7 wherein the compressible thermal insulation layer has a compressed thickness of 400 to 800 μm. ### Claim 10 (depends on 1) The heat delivery element of claim 1 further comprising a cover secured to the faceplate, wherein the heater and the heat dispersion layer are secured between the face plate and the cover. ### Claim 11 (depends on 1) The heat delivery element of claim 1 wherein the face plate comprises a recessed inner surface opposite the skin contacting surface configured to receive the compressible thermal insulation layer and the heater. ### Claim 12 (depends on 1) The heat delivery element of claim 1 wherein the face plate has a thickness of 100 to 200 μm. ### Claim 13 (depends on 1) The heat delivery element of claim 1 wherein the face plate comprises a material having a thermal conductivity of 10 to 30 W/mk. ### Claim 14 A heat delivery element for a shaving razor comprising: a face plate having a skin contacting surface and an opposing inner surface; a heater having a heater track positioned between an upper dielectric layer and a lower dielectric layer; a compressible thermal insulation layer positioned on one of the dielectric layers; and a heat dispersion layer having a lower surface directly contacting the inner surface of the face plate and an upper surface directly contacting the lower dielectric layer of the heater, wherein the heat dispersion layer comprises graphite foil compressed by 20% to 50% of an original thickness. ### Claim 15 (depends on 14) A heat delivery element of claim 14 wherein the compressible thermal insulation layer has a thermal conductivity less than 0.10 W/mk. ### Claim 16 (depends on 14) The heat delivery element of claim 14 wherein the compressible thermal insulation layer comprises a compressible foam. ### Claim 17 (depends on 16) The heat delivery element of claim 16 wherein the compressible thermal insulation layer is compressed 30 percent to 70 percent from an original thickness. ### Claim 18 (depends on 14) The heat delivery element of claim 14 wherein the compressible thermal insulation layer has a compressed thickness of 400 to 800 μm. ### Claim 19 (depends on 14) The heat delivery element of claim 14 further comprising a cover secured to the face plate, wherein the heater and the heat dispersion layer are secured between the face plate and the cover.