# US 11,439,560 B2 · Casket and method of construction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,560 B2 - Document ID: US11439560B2 - Status: Granted - Kind: B2 - Application number: 16/656,175 - Filed: 2019-10-17 - Published: 2020-07-30 - Granted: 2022-09-13 - Earliest claimed: 2018-10-13 - Assignees: Sich Casket Company Limited - Applicants: Sich Casket Company Limited - Inventors: Hung Sirius Chan - Web page: https://patentgrep.com/patent/US11439560B2 ## CPC - A61G 17/0073: {Cardboard} - A61G 17/004: {specially adapted to be cremated} - B27N 1/00: Pretreatment of moulding material - B27N 3/08: Moulding or pressing (presses in general B30B) - B27N 3/18: Auxiliary operations, e.g. preheating, humidifying, cutting-off - B27N 3/20: characterised by using platen-presses - B27N 5/00: Manufacture of non-flat articles - B27N 7/005: {Coating boards, e.g. with a finishing or decorating layer} - A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00) - B27N: MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL (containing cementitious material B28B; shaping of substances in a plastic state B29C; fibreboards made from fibrous suspensions D21J; drying F26B17/00) ## Abstract A casket and method for manufacture of a casket is described, and more particularly, for a casket having walls constructed of fiberboard such as medium density fiberboard (MDF). The walls have outside cladding of MDF that is molded or extruded to provide surface contours such as raised and/or recessed features without having to attach such features as separate trim pieces to the walls. The resulting casket provides aesthetic characteristics and strength for use in funeral ceremonies. ## Claims ### Claim 1 A method of manufacturing caskets, comprising the steps of: providing a casket shell including opposite inner side walls and opposite inner end walls, a bottom wall and a lid; providing outer side walls and outer end walls and forming at least one of the outer side walls and outer end walls with a contoured surface in a central region surrounded by a flat surface, the contoured surface having convex and concave portions by molding a medium density fiberboard between co-acting mold walls to plastically deform the fiberboard into the contoured surface; and assembling the outer side walls to the inner side walls respectively via interposed side wall frames; and assembling the outer end walls to the inner end walls respectively via interposed end wall frames; and assembling the inner side walls, the inner end walls, the outer side walls, the outer end walls, the side wall frames, the end wall frames, the bottom wall and the lid into an openable box. ### Claim 2 (depends on 1) The method according to claim 1, wherein the step of forming at least one of the outer side walls and outer end walls with a contoured surface in a central region surrounded by a flat surface, the contoured surface having convex and concave portions by molding a medium density fiberboard between co-acting mold walls to plastically deform the fiberboard into the contoured surface is further defined in that all four of the outer side walls and outer end walls have contoured surfaces in respective central regions surrounded by respective flat surfaces, the contoured surfaces having convex and concave portions by molding medium density fiberboard between co-acting mold walls to plastically deform the fiberboard into the contoured surfaces. ### Claim 3 (depends on 2) The method according to claim 2, wherein the convex and concave portions form rectangular trims. ### Claim 4 (depends on 2) The method according to claim 2, comprising the step of forming the lid with a contoured surface by molding a medium density fiberboard between co-acting mold walls. ### Claim 5 (depends on 1) The method according to claim 1, wherein the convex and concave portions form a rectangular trim. ### Claim 6 (depends on 1) The method according to claim 1, comprising the step of forming the lid with a contoured surface by molding a medium density fiberboard between co-acting mold walls. ### Claim 7 A casket, comprising: a casket shell including opposite side walls and opposite end walls, a bottom wall and a lid; the opposite side walls, the opposite end walls, the bottom wall and the lid assembled into an openable box; wherein each of the opposite side walls and the opposite end walls comprises an outer cladding portion formed of medium density fiberboard and having a molded contoured surface in a central region surrounded by a flat surface, the contoured surface having raised and recessed portions, and two inner side walls and two inner end walls, each of the two inner side walls and two inner end walls secured to a back side of a respective outer cladding portion, wherein each of the inner side walls and the inner end walls is secured to the respective outer cladding portion via a respective frame. ### Claim 8 (depends on 7) The casket according to claim 7, wherein all four of the side walls and end walls have cladding portions having contoured surfaces in respective central regions surrounded by flat surfaces, the contoured surfaces having raised and recessed portions. ### Claim 9 (depends on 8) The casket according to claim 8, wherein the lid is formed of medium density fiberboard having a molded contoured surface formed by molding the medium density fiberboard between co-acting mold walls. ### Claim 10 (depends on 7) The casket according to claim 7, wherein the raised or recessed portions are raised or recessed from the dominant surface of the at least one of the side walls and end walls. ### Claim 11 (depends on 10) The casket according to claim 10, wherein the raised or recessed portions form a rectangular trim. ### Claim 12 (depends on 11) The casket according to claim 11, wherein all four of the side walls and end walls have contoured surfaces in respective central regions surrounded by flat surfaces, the contoured surfaces having raised and recessed portions forming rectangular trims. ### Claim 13 (depends on 7) The casket according to claim 7, wherein the lid comprises a contoured surface formed by molding a medium density fiberboard between co-acting mold walls.