Triple pane window spacer, window assembly and methods for manufacturing same

A window assembly comprising:

• a first sheet of a material;
• a second sheet of a material;
• an intermediary sheet of a material between the first sheet and the second sheet, the intermediary sheet having a perimeter, wherein a first space is defined between the first sheet and the intermediary sheet, wherein a second space is defined between the second sheet and the intermediary sheet;
• a spacer arranged between the first sheet and the second sheet, wherein the spacer comprises:
• a first elongate strip having a first surface and having an undulating shape;
• and
• a second elongate strip having a second surface and having an undulating shape;
• wherein the second surface is spaced from the first surface;
• at least one filler arranged in an interior space defined between the first and second elongate strips and the first and second sheets, the filler including a desiccant, wherein the filler occupies only a portion of the interior space that is less than a volume of the interior space;
• and
• a sealant material or adhesive material located between the spacer and the first sheet and between the spacer and the second sheet,
• wherein the first elongate strip defines a registration structure for receiving the entire perimeter of the intermediary sheet, wherein the first elongate strip defines first and second co-planar portions of the first surface on opposing sides of the registration structure, wherein the first and second portions of the first surface define first and second sets of apertures, respectively, and wherein the first space and second space are in direct air-to-air fluid communication through a void located above a top surface of the filler and below the first and second sets of apertures.

An insulated glass unit (IGU), comprising:

• a first transparent window component;
• a second transparent window component;
• a spacer arranged between the first and second transparent window components, the spacer comprising:
• a first metal strip defining first and second edges and a first corrugated surface, the first corrugated surface defining a registration structure for a sheet of material and first and second co-planar portions arranged on opposing sides of the registration structure, the first and second portions defining first and second sets of apertures, respectively,
• a second metal strip defining first and second edges and a second corrugated surface spaced apart from the first corrugated surface,
• a first non-metal sidewall extruded between the first and second corrugated surfaces and offset from the first edges of the first and second metal strips,
• a second non-metal sidewall extruded between the first and second corrugated surfaces and offset from the second edges of the first and second metal strips, and
• a filler including a desiccant and occupying only a portion of an interior space defined between the first and second metal strips and the first and second non-metal sidewalls, the portion of the interior space being less than a volume of the interior space;
• and
• a third transparent window component arranged between the first and second transparent window components and in the registration structure, wherein the first and third transparent window components define a first space and wherein the second and third transparent window components define a second space,
• wherein the first and second spaces are in direct air-to-air fluid communication via the first and second sets of apertures and through a void located above a top surface of the filler and below the first and second sets of apertures.