US 12,287,100 B2
Heating mat for use in a floor structure, floor structure, and method for producing same
Florian Pagel, Barmstedt (DE); Romana Koch, Hamburg (DE); Karl Bock, Hamburg (DE); Markus Villinger, Mieders (AT); Nils Beyer, Ellerbek (DE); and Niels Dose, Hamburg (DE)
Assigned to Lufthansa Technik AG;, Hamburg (DE); and Villinger GmbH, Mieders (AT)
Appl. No. 17/438,973
Filed by Lufthansa Technik AG, Hamburg (DE); and Villinger GmbH, Mieders (AT)
PCT Filed Mar. 13, 2020, PCT No. PCT/EP2020/000066
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/187441, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 10 2019 106 705.7 (DE), filed on Mar. 15, 2019.
Prior Publication US 2022/0146119 A1, May 12, 2022
Int. Cl. F24D 13/02 (2006.01); B64C 1/18 (2006.01); H05B 3/14 (2006.01)
CPC F24D 13/024 (2013.01) [B64C 1/18 (2013.01); H05B 3/14 (2013.01); H05B 2203/013 (2013.01); H05B 2203/026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heating mat for use in a floor structure, in an aircraft, wherein the heating mat comprises a layered structure with a plurality of layers firmly connected to one another, with a layer sequence comprising:
a) a walkable protection layer comprising an unfinished floor covering material made of fiberglass-reinforced plastic or aramid fiber-reinforced plastic;
b) an electrically conductive ground fault detection layer;
c) an electrical insulation layer; and
d) a flat electrical heating element comprising an electrically conductive heating varnish layer, wherein an electrically conductive varnish material of the electrically conductive heating varnish layer is configured to emit heat in response to receiving an electrical current.