Invention Grant
- Patent Title: Apparatus and method for tempering glass sheets
- Patent Title (中): 用于回火玻璃板的设备和方法
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Application No.: US11288708Application Date: 2005-11-29
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Publication No.: US08234883B2Publication Date: 2012-08-07
- Inventor: William R. Krall, Jr. , William R. Siskos , Thomas M. Sailock , Joseph Medzius , DeWitt W. Lampman
- Applicant: William R. Krall, Jr. , William R. Siskos , Thomas M. Sailock , Joseph Medzius , DeWitt W. Lampman
- Applicant Address: US OH Cleveland
- Assignee: PPG Industries Ohio, Inc.
- Current Assignee: PPG Industries Ohio, Inc.
- Current Assignee Address: US OH Cleveland
- Agent Andrew C. Siminerio
- Main IPC: C03B25/00
- IPC: C03B25/00 ; C03B25/04 ; C03B25/08

Abstract:
A method of tempering a glass sheet heated to a tempering temperature includes cooling the glass sheet at a first heat transfer coefficient at a first quench station and cooling the glass sheet at a second heat transfer coefficient at a second quench station downstream of the first quench station. The second heat transfer coefficient is greater than the first heat transfer coefficient. In a multistage process of the invention, a plurality of quench stations could be used with each downstream quench station having a larger heat transfer coefficient than the previous upstream quench station.
Public/Granted literature
- US20070122580A1 Apparatus and method for tempering glass sheets Public/Granted day:2007-05-31
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