Double-walled glass insulated containers and method for producing same

An insulated double-walled beverage glass, comprising:

• an outer glass vessel having a bottom, a generally upright circumferential wall integrally formed with the bottom and terminating at a rim, and the wall of the outer glass having inner and outer surfaces;
• an inner glass vessel having a bottom and a generally upright circumferential wall having inner and outer surfaces and the wall of the inner glass is integrally formed with the bottom;
• wherein the upright circumferential wall of the inner glass vessel comprises a lower portion that is integrally attached to an upper portion including a rim and the upper portion has a diameter that is larger than a diameter of the lower portion forming a transition area from the lower portion to the upper portion, and the lower portion of the inner glass vessel is disposed within the outer glass vessel;
• and,
• the rim of the outer glass vessel abuts the inner glass vessel at the transition area;
• a hermetic seal formed from a light-cure adhesive between the rim of the outer glass vessel and the transition area of the inner vessel, such that an outer surface of the glass comprises the outer surface of the outer glass vessel, the outer surface of the inner glass vessel and an outer surface of the light-cure adhesive that connects the outer surface of the outer glass vessel with the outer surface of the inner glass vessel and is coextensive with the outer surfaces of the outer glass vessel and the upper portion of the inner vessel, the outer surface of the glass has a flush surface extending from the outer surface of the inner glass vessel, along the outer surface of the light-cure adhesive and to the outer surface of the outer glass vessel;
• and,
• an air-filled interstitial space extending between the wall and bottom of the outer glass vessel and the wall and bottom of the lower portion of the inner glass vessel.