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US 4,300,933 AGranted
Method of manufacturing automotive windows by coating a scored substrate
AssigneePPG Industries, Inc.
InventorDonald D. Thomas
Life of this patent
Estimating the term…
Abstract
An automotive back window for flush glazing is manufactured by subsurface scoring a glass sheet to define an automotive back window blank in the sheet surrounded by sheet supporting glass portions. An endless band of ceramic paste is silk screened over the score as screen portions beyond the screen pattern are supported by the supporting glass portions. The sheet is thereafter baked to remove volatiles in the paste, the supporting glass portions removed from the blank and the blank having the baked pattern is bent and/or tempered.
Claims10
A method of making an automotive window for flush glazing, comprising the steps of:
- scoring a sheet within its edges to define an automotive window blank having supporting sheet portions beyond the periphery of said window blank;
- silk screening a pattern on the sheet;
- supporting screen portions adjacent and beyond the pattern by the supporting sheet portions while practicing said silk screening step;
- and
- removing the supporting sheet portions from the automotive window blank.
2 more elements
Dependencies are inferred from the claim text.