US Patent No. 10,526,244

INSULATED GLAZING UNIT


Patent No. 10,526,244
Issue Date January 07, 2020
Title Insulated Glazing Unit
Inventorship Stephen Emil Weidner, Maumee, OH (US)
Neil McSporran, Perrysburg, OH (US)
Assignee Pilkington Group Limited, Lathom (GB)

Claim of US Patent No. 10,526,244

1. An insulated glazing unit comprising a first sheet of glazing material and a second sheet of glazing material, there being a first space between the first sheet of glazing material and the second sheet of glazing material, wherein the first sheet of glazing material has a first major surface and an opposing second major surface, and the second sheet of glazing material has a first major surface and an opposing second major surface, wherein the second major surface of the first sheet of glazing material and the first major surface of the second sheet of glazing material face the first space, wherein the first space is a low pressure space having a pressure less than atmospheric pressure, there being a plurality of spacers disposed in the first space, characterised in that the first sheet of glazing material is spaced apart from the second sheet of glazing material by less than 1 mm, the second major surface of the second sheet of glazing material has a low emissivity coating thereon, the low emissivity coating comprising at least one layer of fluorine doped tin oxide and there is a first anti-iridescence coating in between the low emissivity coating and the second sheet of glazing material.