公开(公告)号：US3904460A

公开(公告)日：1975-09-09

申请号：US42675873

申请日：1973-12-20

申请人： PPG INDUSTRIES INC

发明人： COMPERATORE JOHN A

IPC分类号： B32B17/10 ,  C03C27/12 ,  B32B31/06

CPC分类号： B32B17/10761 ,  B32B17/10036 ,  B32B17/1077 ,  B32B17/10889 ,  Y10T428/31601 ,  Y10T428/3163

摘要： Shaping glass sheets individually by a press bending operation and then laminating two of said bent sheets together after one or both of the bent sheets have been optionally treated. The optional treatment may involve coating, tempering, annealing, chemical treatment, and/or the like. The sheets to be laminated may be treated differently after they are shaped and before they are laminated.

摘要翻译： 通过冲压弯曲操作分别成形玻璃板，然后在一个或两个弯曲的片材上进行任意处理之后，将两个所述弯曲片层压在一起。 任选的处理可以包括涂覆，回火，退火，化学处理和/或类似操作。 待层压的片材在成型后并且在它们层压之前可以被不同地处理。

公开(公告)号：US3560183A

公开(公告)日：1971-02-02

申请号：US3560183D

申请日：1968-09-13

申请人： PPG INDUSTRIES INC

发明人： STILLEY GEORGE W ,  COMPERATORE JOHN A

IPC分类号： C03B23/025 ,  C03B23/02

CPC分类号： C03B23/0252

摘要： BENDING THICK GLASS INTO HERMISPHERICAL SHAPES COMPRISING USING A MOLD OF CONCAVE ELEVATION OF MATERIAL HAVING LESS THERMAL EXPANSIVITY THAN GLASS, SAID MOLD COMPRISING A RING OF RIGID MATERIAL HAVING GREATER THERMAL EXPANSIVITY THAN GLASS AND SUFFICIENTLY SMALLER IN DIAMETER THAN THE MOLD AT GLASS LOADING TEMPERATURE TO SUPORT THE GLASS

OVER SAID MOLD AT THE TEMPERATURE AT WHICH THE MOLD IS LOADED AND CAPABLE OF EXPANDING SUFFICIENTLY MORE RAPIDLY THAN THE MOLD TO DEPOSIT THE GLASS ONTO THE MOLD AFTER THE GLASS HAS ATTAINED A SUFFICIENTLY HIGH TEMPERATURE TO DEFORM IN RESPONSE TO EXTERNAL STRESSES.