Patent ID: 7628039
Filing Date: 2009-12-08
Classification: C03B

Abstract:
1. A glass manufacturing system comprising: a melting, fining, delivery, and forming vessel, each vessel includes an inner wall which contacts molten glass; a capsule that encloses at least one of the vessels; a closed-loop control system that monitors and controls an environment within said capsule and around a non-glass contact surface of said at least one vessel; and wherein said closed-loop control system controls a level of hydrogen within a mixture of gases in the environment so that a partial pressure is maintained at or greater than a level defined by an equilibrium relationship around the non-glass contact surface of said at least one vessel to suppress the formation of undesirable gaseous inclusions within the molten glass, where T is a temperature in Kelvin of the non-glass contact surface of said at least one vessel.