# US 10,245,765 B2 · Method of producing a panel and a core therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,765 B2 - Document ID: US10245765B2 - Status: Granted - Kind: B2 - Application number: 15/075,777 - Filed: 2016-03-21 - Published: 2016-07-14 - Granted: 2019-04-02 - Earliest claimed: 2008-11-19 - Assignees: FiberCore IP B.V. - Applicants: FiberCore IP B.V. - Inventors: Johannes Hendricus Alphonsus Peeters - Web page: https://patentgrep.com/patent/US10245765B2 ## CPC - B29C 45/14065: {Positioning or centering articles in the mould} - B29C 45/77: of velocity or pressure of moulding material - B29C 70/086: {and with one or more layers of pure plastics material, e.g. foam layers (applying a non-preformed coating, e.g. a gel-coat, B29C37/0025; with foam blocks B29C70/86)} - B29C 70/443: {and impregnating by vacuum or injection} - B29C 70/48: and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM] {, e.g. by vacuum} - B29C 70/547: {using channels or porous distribution layers incorporated in or associated with the product} - B29C 70/865: {completely encapsulated} - B29K 2105/08: of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns - B29K 2105/20: Inserts - Y10T 428/24479: including variation in thickness - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A core element is provided, having the shape of a block with a first surface, a second surface situated opposite the first surface, mutually facing longitudinal side faces, and mutually facing transverse side faces. The first surface is provided with the first groove that is a continuous groove which extends parallel to the longitudinal side faces. The longitudinal side faces are provided with the side wall grooves, the side wall grooves being continuous side wall grooves which extend between the first surface and the second surface and are separated from the first groove in the first surface. ## Claims ### Claim 1 A core element, having the shape of a block with a first surface, a second surface situated opposite the first surface, mutually facing longitudinal side faces, and mutually facing transverse side faces, wherein the first surface is provided with a first groove that is a continuous groove which extends parallel to the longitudinal side faces, wherein the first surface is further provided with a recess that extends through the core element and ends up in both the longitudinal side faces, wherein the first groove discharges into said recess, and wherein the longitudinal side faces are provided with side wall grooves, the side wall grooves being continuous side wall grooves which extend between and end at the first surface and the second surface, and which are separated from and do not discharge into the first groove in the first surface. ### Claim 2 (depends on 1) The core element according to claim 1, wherein the second surface is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces. ### Claim 3 (depends on 1) The core element according to claim 1, wherein the first surface is provided with a further recess, wherein the recess and further recess are provided on opposite sides of the core element, each of the recesses being adjacent to a transverse side face and in which the groove situated in said first surface ends. ### Claim 4 (depends on 3) The core element according to claim 3, wherein the second surface is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces. ### Claim 5 (depends on 1) A panel, comprising at least one core element according to claim 1. ### Claim 6 (depends on 5) The panel according to claim 5, comprising a plurality of core elements that are arranged parallel to each other; wherein first surfaces of respective core elements face a first panel side, so that respective first grooves along the first surfaces extend mutually parallel along a first direction; wherein second surfaces of respective core elements face a second panel side, which is opposite to the first panel side; and wherein longitudinal side faces of respective core elements face each other, so that respective side wall grooves extend mutually parallel along a second direction and between the first and second panel sides. ### Claim 7 (depends on 6) The panel according to claim 6, wherein the second surface of each core element is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face of said core element, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces of said core element; and wherein the second surfaces of respective core elements face the second panel side, so that respective grooves parts along the second surfaces extend mutually parallel along said first direction. ### Claim 8 (depends on 6) The panel according to claim 6, wherein the first surface of each core element is provided with opposite recesses, each of said recesses being adjacent to a transverse side face and in which the groove situated in said first surface ends, and wherein recesses of adjacent core elements mutually adjoin and extend in a third direction. ### Claim 9 (depends on 8) The panel according to claim 8, wherein the second surface of each core element is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face of said core element, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces of said core element; and wherein the second surfaces of respective core elements face the second panel side, so that respective grooves parts along the second surfaces extend mutually parallel along said first direction. ### Claim 10 A panel, comprising a plurality of core elements that are arranged parallel to each other; wherein each of said core elements has a shape of a block with a first surface, a second surface situated opposite the first surface, mutually facing longitudinal side faces, and mutually facing transverse side faces; wherein the first surface is provided with a first groove that is a continuous groove which extends parallel to the longitudinal side faces, and wherein the longitudinal side faces are provided with side wall grooves, the side wall grooves being continuous side wall grooves which extend between and end at the first surface and the second surface, and which are separated from and do not discharge into the first groove in the first surface; wherein first surfaces of respective core elements face a first panel side, so that respective first grooves along the first surfaces extend mutually parallel along a first direction; wherein second surfaces of respective core elements face a second panel side, which is opposite to the first panel side; and wherein longitudinal side faces of respective core elements face each other, so that respective side wall grooves extend mutually parallel along a second direction and between the first and second panel sides. ### Claim 11 (depends on 10) The panel according to claim 10, wherein the second surface of each core element is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face of said core element, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces of said core element; and wherein the second surfaces of respective core elements face the second panel side, so that respective grooves parts along the second surfaces extend mutually parallel along said first direction. ### Claim 12 (depends on 10) The panel according to claim 10, wherein the first surface of each core element is further provided with a recess that extends through the core element and ends up in both the longitudinal side faces, wherein the first groove discharges into said recess. ### Claim 13 (depends on 12) The panel according to claim 12, wherein the first surface of each core element is provided with a further recess, wherein the recess and further recess are provided on opposite sides of the core element, each of said recesses being adjacent to a transverse side face and in which the groove situated in said first surface ends, and wherein recesses of adjacent core elements mutually adjoin and extend in a third direction. ### Claim 14 (depends on 12) The panel according to claim 12, wherein the second surface of each core element is provided with two mutually separated groove parts, each of the groove parts ending at a transverse side face of said core element, wherein the groove parts are separated from and do not discharge into the side wall grooves in the longitudinal side faces of said core element; and wherein the second surfaces of respective core elements face the second panel side, so that respective grooves parts along the second surfaces extend mutually parallel along said first direction.