Stock material or miscellaneous articles – Surface property or characteristic of web – sheet or block – Surface modified glass
Patent
1979-02-02
1980-07-08
Vertiz, O. R.
Stock material or miscellaneous articles
Surface property or characteristic of web, sheet or block
Surface modified glass
106 397, C03C 322, C03C 304
Patent
active
042118204
ABSTRACT:
This invention relates to the production of essentially transparent glass-ceramic sheet useful as surfaces for smoothtop cooking stoves which will display a warm brown coloration sufficiently dark to conceal the heating element when not in use, but permitting visible observation thereof when in operation. The products consist essentially, on an analyzed basis, of 2.5-4.5% Li.sub.2 O, 1-2% MgO, 1-2% ZnO, 19.5-21% Al.sub.2 O.sub.3, 66.5-68% SiO.sub.2, 4-5% TiO.sub.2, and 0.02-0.2% V.sub.2 O.sub.5.
REFERENCES:
patent: 3788865 (1974-01-01), Babcock et al.
patent: 4009042 (1977-02-01), Rittler
patent: 4018612 (1977-04-01), Chyung
Cantaloupe Francis A.
Colegrove Robert W.
Megles, Jr. John E.
Rittler Hermann L.
Bell Mark
Corning Glass Works
Janes Jr. Clinton S.
Vertiz O. R.
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