Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Iwao Anzai0
Noboru Yamaki0
Date of Patent
September 18, 2007
Patent Application Number
10468057
Date Filed
February 15, 2002
Patent Primary Examiner
Patent abstract
A bushing temperature controller includes a transformer 3 which supplies a main current I1 to the bushing 2 for accommodating molten glass, and regulation current supply units 7 and 8 which are adapted to supply regulation currents I2 and I3 either in phase with the main current I1 or in phase inverted to the main current I1 to a portion of a region to which the transformer 3 applies the current. Thus, the temperature control of partial regions 2a and 2c in the region to which the current is applied can be performed in a wide temperature range.
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