US 12,428,904 B2
Spacer for insulated glass units
Hans-Werner Kuster, Aachen (DE); Christopher Marjan, Aachen (DE); and Walter Schreiber, Aachen (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 17/627,406
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Jul. 14, 2020, PCT No. PCT/EP2020/069901
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/009176, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 19186751 (EP), filed on Jul. 17, 2019.
Prior Publication US 2022/0243526 A1, Aug. 4, 2022
Int. Cl. E06B 3/66 (2006.01); B32B 1/08 (2006.01); E06B 3/663 (2006.01); E06B 3/673 (2006.01)
CPC E06B 3/66323 (2013.01) [E06B 3/67326 (2013.01); E06B 3/66352 (2013.01); E06B 3/66361 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A spacer for insulated glass units, comprising:
a main body co-extruded from a first plastic and a second plastic, comprising
a first side wall and a second side wall arranged parallel thereto,
a glazing interior wall, which connects the first and second side walls to one another;
an outer wall, which is arranged substantially parallel to the glazing interior wall and connects the first and second side walls to one another directly or via connecting walls;
a cavity, which is enclosed by the first and second side walls, the glazing interior wall, and the outer wall or by the first and second side walls, the glazing interior wall, the outer wall, and the connecting walls,
wherein the second plastic has lower thermal conductivity than the first plastic, and the main body is designed as a hollow profile, wherein the second plastic has an interior perimeter, and the first plastic directly contacts said interior perimeter, and an entire interior surface of the main body defines the cavity, wherein the entire interior surface is defined by a combination of the first plastic and the second plastic,
wherein the second plastic forming an exterior portion of the main body and sheathing the first plastic is more flexible than the first plastic, and
wherein the first side wall, the second side wall, the outer wall, the first connecting wall, and the second connecting wall of the main body are made from the first plastic and the second plastic such that a portion of the entire interior surface of the main body along the first side wall, the second side wall, the outer wall, the first connecting wall, and the second connecting wall is formed by the first plastic and a portion of the entire interior surface of the main body along the glazing interior wall is formed by the second plastic.
 
12. A spacer for insulated glass units, comprising:
a main body co-extruded from a first plastic and a second plastic, comprising
a first side wall and a second side wall arranged parallel thereto,
a glazing interior wall, which connects the first and second side walls to one another;
an outer wall, which is arranged substantially parallel to the glazing interior wall and connects the first and second side walls to one another directly or via connecting walls;
a cavity, which is enclosed by the first and second side walls, the glazing interior wall, and the outer wall or by the first and second side walls, the glazing interior wall, the outer wall, and the connecting walls,
wherein the second plastic has lower thermal conductivity than the first plastic, and the main body is designed as a hollow profile, wherein the second plastic has an interior perimeter, and the first plastic directly contacts said interior perimeter, and an entire interior surface of the main body defines the cavity, wherein the entire interior surface is defined by a combination of the first plastic and the second plastic, wherein the second plastic forming an exterior portion of the main body and sheathing the first plastic is more flexible than the first plastic, and
wherein the first side wall, the second side wall, the glazing interior wall, the first connecting wall, and the second connecting wall of the main body are made from the first plastic and the second plastic such that a portion of the entire interior surface of the main body along the first side wall, the second side wall, the glazing interior wall, the first connecting wall, and the second connecting wall of the main body is formed from the first plastic and a portion of the entire interior surface of the main body along the outer wall of the main body is formed by the second plastic.
 
13. A spacer for insulated glass units, comprising:
a main body co-extruded from a first plastic and a second plastic, comprising
a first side wall and a second side wall arranged parallel thereto,
a glazing interior wall, which connects the first and second side walls to one another;
an outer wall, which is arranged substantially parallel to the glazing interior wall and connects the first and second side walls to one another directly or via connecting walls;
a cavity, which is enclosed by the first and second side walls, the glazing interior wall, and the outer wall or by the first and second side walls, the glazing interior wall, the outer wall, and the connecting walls,
wherein the second plastic has lower thermal conductivity than the first plastic, and the main body is designed as a hollow profile, wherein the second plastic has an interior perimeter, and the first plastic directly contacts said interior perimeter, and an entire interior surface of the main body defines the cavity, wherein the entire interior surface is defined by a combination of the first plastic and the second plastic, wherein the second plastic forming an exterior portion of the main body and sheathing the first plastic is more flexible than the first plastic, and
wherein the first side wall, the second side wall, the first connecting wall, and the second connecting wall of the main body are made from the first plastic and the second plastic such that a portion of the entire interior surface of the main body along the first side wall, the second side wall, the first connecting wall, and the second connecting wall of the main body is formed by the first plastic and a portion of the entire interior surface of the main body along the glazing interior wall and the outer wall of the main body is formed by the second plastic.