Glass manufacturing – Processes – Glass preform treating
Patent
1997-08-15
1999-09-14
Chin, Peter
Glass manufacturing
Processes
Glass preform treating
65160, 65161, 65162, 65269, 65273, 65119, 65349, 65355, 65356, 65DIG4, 65DIG13, 36447301, 219385, 219400, 219647, 432144, C03B 2500
Patent
active
059517344
ABSTRACT:
A semi-convective forced air system for heating glass sheets during a heating cycle. The system has a heating chamber, and a longitudinal conveyor extending lengthwise through the heating chamber. A plurality of longitidinally-extending air manifolds are located within the chamber and are in fluid connection with a compressed air source. The manifolds are arranged in at least one widthwise-extending column. Each of the manifolds are oriented parallel to the length of the conveyor and are constructed and arranged to create a downward flow of heated air toward the conveyor to convectively heat the entire length of selected widthwise portions of a sheet of glass on the conveyor. A controller supplies or restricts the flow of compressed air to selected manifolds within a column at predetermined times during the heating cycle.
REFERENCES:
patent: 4505671 (1985-03-01), McMaster
patent: 4529380 (1985-07-01), McMaster
patent: 5039841 (1991-08-01), Kato et al.
patent: 5118942 (1992-06-01), Hamade
patent: 5125948 (1992-06-01), Vanaschen et al.
Friedel Kenneth
Matukonis Cliff
A. Earley John F.
Chin Peter
Colaianni Michael P.
Earley III John F.A.
TGL Tempering Systems, Inc.
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