US 12,435,518 B2
Magnesium-oxide wall tiles for modular wall systems
Geoff William Gosling, Calgary (CA); Hans Gunther Wissner, Calgary (CA); and Trevor Samuel Didluck, Calgary (CA)
Assigned to DIRTT ENVIRONMENTAL SOLUTIONS LTD., (CA)
Appl. No. 17/286,213
Filed by DIRTT ENVIRONMENTAL SOLUTIONS LTD., Calgary (CA)
PCT Filed Jan. 30, 2020, PCT No. PCT/US2020/015941
§ 371(c)(1), (2) Date Apr. 16, 2021,
PCT Pub. No. WO2020/160309, PCT Pub. Date Aug. 6, 2020.
Claims priority of provisional application 62/798,969, filed on Jan. 30, 2019.
Prior Publication US 2021/0340772 A1, Nov. 4, 2021
Int. Cl. E04F 13/08 (2006.01); B32B 3/04 (2006.01); B32B 9/00 (2006.01); B32B 9/06 (2006.01); B32B 27/10 (2006.01); E04B 2/00 (2006.01); E04C 2/28 (2006.01); E04C 2/52 (2006.01)
CPC E04F 13/083 (2013.01) [B32B 3/04 (2013.01); B32B 9/005 (2013.01); B32B 9/06 (2013.01); B32B 27/10 (2013.01); E04C 2/28 (2013.01); E04C 2/46 (2013.01); E04F 13/0866 (2013.01); B32B 2260/028 (2013.01); B32B 2260/046 (2013.01); B32B 2607/00 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A magnesium-oxide wall tile for use in a prefabricated wall system, comprising:
a plurality of layers, comprising:
an inner core comprising magnesium-oxide and having a length and a height and a front face and a back face, the inner core comprising four edges, wherein at least two of the four edges of the inner core include a chamfer extending from the back face, configured to align the magnesium-oxide wall tile to the prefabricated wall system;
an intermediate layer disposed on the inner core;
a thermofoil layer disposed over the front face and the four edges of the inner core, wherein the thermofoil layer does not extend over the back face of the inner core; and
an attachment protrusion affixed to a back face of the magnesium-oxide wall tile, wherein the attachment protrusion is positioned at a top portion of the magnesium-oxide wall tile and extends away from the back face in a non-parallel direction.