US 12,486,664 B2
Core layer having wood elements, in particular wood elements having a corrugated structure
Thomas Eckstein, Dresden (DE); Achim Moeller, Dresden (DE); and Hans-Joachim Danzer, Zug (CH)
Assigned to WOOD INNOVATIONS LTD, Eschen (LI)
Filed by WOOD INNOVATIONS LTD, Eschen (LI)
Filed on Oct. 26, 2020, as Appl. No. 17/080,233.
Application 17/080,233 is a division of application No. 16/102,481, filed on Aug. 13, 2018, granted, now 10,814,936.
Application 16/102,481 is a continuation of application No. 15/034,491, granted, now 10,053,191, issued on Aug. 21, 2018, previously published as PCT/EP2014/002965, filed on Nov. 5, 2014.
Claims priority of application No. 13005226 (EP), filed on Nov. 6, 2013.
Prior Publication US 2021/0039750 A1, Feb. 11, 2021
Int. Cl. E04C 2/12 (2006.01); A47B 96/02 (2006.01); B27D 1/06 (2006.01); B32B 7/12 (2006.01); B32B 21/14 (2006.01); B32B 37/00 (2006.01); B32B 37/12 (2006.01); B32B 37/14 (2006.01); B60J 5/04 (2006.01); B62D 29/02 (2006.01); B63B 5/24 (2006.01); E04C 2/10 (2006.01); E04C 2/26 (2006.01); E04C 2/32 (2006.01); E04C 2/34 (2006.01); E06B 3/70 (2006.01); E06B 11/02 (2006.01)
CPC E04C 2/12 (2013.01) [A47B 96/02 (2013.01); B27D 1/06 (2013.01); B32B 7/12 (2013.01); B32B 21/14 (2013.01); B32B 37/0076 (2013.01); B32B 37/12 (2013.01); B32B 37/14 (2013.01); B60J 5/042 (2013.01); B62D 29/02 (2013.01); B63B 5/24 (2013.01); E04C 2/10 (2013.01); E04C 2/26 (2013.01); E04C 2/32 (2013.01); E04C 2/3405 (2013.01); E06B 3/7015 (2013.01); E06B 11/02 (2013.01); B32B 2309/105 (2013.01); B32B 2317/16 (2013.01); B32B 2479/00 (2013.01); B32B 2605/00 (2013.01); E04C 2002/3444 (2013.01); E04C 2002/345 (2013.01); E04C 2002/3455 (2013.01); E04C 2002/3466 (2013.01); E04C 2002/3472 (2013.01); E06B 2003/7019 (2013.01); Y10T 428/24058 (2015.01); Y10T 428/24066 (2015.01); Y10T 428/24124 (2015.01); Y10T 428/24132 (2015.01); Y10T 428/24628 (2015.01); Y10T 428/24694 (2015.01); Y10T 428/25 (2015.01); Y10T 428/253 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method of producing a corrugated wood element, comprising:
providing a plate-like wood element composed of glued-together wood fibers, wherein the wood fibers of the plate-like wood element are glued-together prior to heating with a glue based on glutin, casein, urea-formaldehyde, phenol-formaldehyde, resorcinol-formaldehyde, polyvinyl acetate, and/or polyurethane, wherein the plate-like wood element composed of glued-together wood fibers has glue in an interior of the plate-like wood element, and wherein the provided plate-like wood element is not composed of different layers or plies of wood held together by way of an adhesive or glue;
heating the plate-like wood element;
deforming the plate-like wood element to form undulations by passing the plate-like wood element between a pair of rollers, wherein at least one of the pair of rollers is heated; and
cooling the plate-like wood element such that the corrugated wood element is formed, wherein the corrugated wood element comprises plate-like regions arranged in a zig-zag-shaped fashion, wherein a zig region of the corrugated wood element with an adjoining zag region of the corrugated wood element form a common edge between them in such a way that the corrugated wood element is of zig-zag shaped form, and wherein:
(a) the plate-like regions of the corrugated wood element are planar surfaces and the common edge formed between the planar surfaces is a planar surface; or
(b) the plate-like regions of the corrugated wood element are surfaces of curved form, and the common edge formed between the curved surfaces is a surface of curved form; or
(c) the plate-like regions of the corrugated wood element are surfaces of curved form, and the common edge formed between the curved surfaces is rectilinear; or
(d) the plate-like regions of the corrugated wood element are surfaces of curved form, and the common edge formed between the curved surfaces is a surface of planar form.