Patent ID: 9556052
Date: 2017-01-31
CPC Classifications: C03B

Claim:
1. A laminate fusion draw apparatus comprising: a core isopipe having a first core melter, the core melter being, in operation, in flow communication with and providing molten glass to the core isopipe; a clad isopipe atop the core isopipe, the clad isopipe having a clad melter, the clad melter being, in operation, in flow communication with and providing molten glass to the clad isopipe; a first core down comer between the core melter and the core isopipe, the first down comer having an adjustable and fixable horizontal position and a fixed vertical position; and a second clad down comer between the clad melter and the clad isopipe, the second clad down comer having an independently adjustable linear and horizontal position with respect to a fixed horizontal position of the first down comer, the core melter and the clad melter are linearly moveable for relative movement in the same or opposite horizontal direction, and in operation, the first core down comer remains substantially centered on the first inlet tube of the core isopipe, and the second clad down comer remains substantially centered on the second inlet tube of the clad isopipe.