# US 8,146,325 B2 · Door, deep draw molded door facing, and methods of forming door and facing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,146,325 B2 - Document ID: US8146325B2 - Status: Granted - Kind: B2 - Application number: 12/792,813 - Filed: 2010-06-03 - Published: 2010-12-23 - Granted: 2012-04-03 - Earliest claimed: 2004-01-16 - Assignees: Masonite Corporation - Inventors: Bei Hong Liang; Jason M. Walsh; Steven K. Lynch; Mark A. Ruggie; Richard D. Trubey; Henry M. Coghlan - Web page: https://patentgrep.com/patent/US8146325B2 ## CPC - B27N 5/00: Manufacture of non-flat articles - B27N 3/10: Moulding of mats - E06B 3/7001: {Coverings therefor; Door leaves imitating traditional raised panel doors, e.g. engraved or embossed surfaces, with trim strips applied to the surfaces} - E06B 3/74: with wooden panels {or frame (E06B3/721, E06B3/725 and E06B3/76 take precedence)} - E06B 3/7017: {of grating type} - E06B 2003/7019: {of corrugated type} - Y10T 156/1002: with permanent bending or reshaping or surface deformation of self sustaining lamina - Y10T 428/24066: Wood grain - 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) - E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention relates to a wood composite panel having a major planar portion, at least one panel portion, and an inwardly extending contoured portion surrounding the panel portion and interconnecting the major planar portion and the panel portion. The contoured portion defines an inter-relationship between a vector angle and a deep draw depth that achieve a satisfactory stretch factor. The present invention also relates to a door having the disclosed wood composite door facings, and methods of forming the facing and door. ## Claims ### Claim 1 A door, comprising: a peripheral frame having first and second sides; first and second wood composite door facings, each of said facings having a major planar surface having an exterior surface and an interior surface secured to said first and second sides, respectively, at least one panel portion, and an inwardly extending contoured portion surrounding said panel portion and interconnecting and integral with said major planar portion and said panel portion, said contoured portion having a vector angle and a draw depth that achieve a satisfactory stretch factor as shown in FIG. 6. ### Claim 2 (depends on 1) The door of claim 1, wherein the draw depth of said contoured portion is at least about 0.5 inch with a stretch factor of less than about 45%. ### Claim 3 (depends on 1) The door of claim 1, wherein the draw depth of said contoured portion is about 0.125 inch or less and the vector angle is at least about 85° with a stretch factor of less than about 90%. ### Claim 4 (depends on 1) The door of claim 1, wherein each of said contoured portions includes a base, said base of said first facing is aligned with and abuts said base of said second facing. ### Claim 5 (depends on 4) The door of claim 4, wherein said base of said first facing is adhesively secured to said base of said second facing. ### Claim 6 (depends on 1) The door of claim 1, wherein said major planar surface and said panel portion are coplanar. ### Claim 7 (depends on 1) The door of claim 1, further comprising a corrugated paper core disposed between said first and second facings. ### Claim 8 (depends on 7) The door of claim 7, wherein said core is adhesively secured to said first and second facings. ### Claim 9 (depends on 8) The door of claim 8, wherein said core has a thickness greater than the distance between said interior surface of said panel portion of said first facing and the corresponding interior surface of said panel portion of said second facing. ### Claim 10 A wood composite door facing, comprising: a major planar portion having a first surface adapted to be exteriorly disposed and a second surface adapted to be interiorly disposed; at least one panel portion; and an inwardly extending contoured portion surrounding said panel portion and interconnecting and integral with said major planar portion and said panel portion, said contoured portion having a vector angle and a draw depth that achieve a satisfactory stretch factor as shown in FIG. 6. ### Claim 11 (depends on 10) The door of claim 10, wherein the draw depth of said contoured portion is at least about 0.5 inch with a stretch factor of less than about 45%. ### Claim 12 (depends on 10) The door of claim 10, wherein the draw depth of said contoured portion is about 0.125 inch or less and the vector angle is at least about 85° with a stretch factor of less than about 90%. ### Claim 13 (depends on 10) The door of claim 10, wherein each of said contoured portions includes a base, said base of said first facing is aligned with and abuts said base of said second facing. ### Claim 14 (depends on 13) The door of claim 13, wherein said base of said first facing is adhesively secured to said base of said second facing. ### Claim 15 (depends on 10) The door of claim 10, wherein said major planar surface and said panel portion are coplanar. ### Claim 16 (depends on 10) The door of claim 10, further comprising a corrugated paper core disposed between said first and second facings. ### Claim 17 (depends on 16) The door of claim 16, wherein said core is adhesively secured to said first and second facings. ### Claim 18 (depends on 17) The door of claim 17, wherein said core has a thickness greater than the distance between said interior surface of said panel portion of said first facing and the corresponding interior surface of said panel portion of said second facing.