Asg Industries, Inc.

Albert H Agett

William C Cooke

A float or plate glass spandrel, preferably heat strengthened, coated with a thin film of metal has secured thereto on the metallic side thereof an insulation board. A barrier material such as a paint coating and a cotton muslin is interposed between the metallic coating and the insulation board to prevent 'show through' of the insulation board and to insure adequate bonding.

Spandrel glass panel

By the addition of a small quantity of potassium chloride or arsenous sulfide to commercial grades of molten potassium nitrate, the potassium nitrate may be activated or purified sufficiently to produce strengthened glass by ion exchange equal to glass strengthened by use of highly purified laboratory reagent grades of potassium nitrate.

Growing community of inventors

Kingsport, TN, United States of America

Albert H Agett