Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Of excess fiber or filament
Reexamination Certificate
2003-12-01
2008-08-26
Griffin, Steven P. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Recycling of reclaimed or purified process material
Of excess fiber or filament
C264S109000, C065S017300, C501S155000
Reexamination Certificate
active
07416690
ABSTRACT:
The invention provides a method to transform large quantities of fiber glass waste into useful ceramic products by a low-cost manufacturing process. The method consists of reducing the fiber glass waste into a glass powder; mixing the glass powder with additives into a glass-additives mixture; granulating the glass-additives mixture into granulated particles; forming the granulated particles into a green ceramic article; and heating the green ceramic article into the ceramic product. Water and clay can be included in the processing. Only one firing step is needed with a low peak firing temperature of about 700° C. to about 1000° C. The method conserves energy and natural resources compared to clay-based traditional ceramic manufacturing. High-quality impervious ceramic products can be produced by the invention.
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Griffin Steven P.
Kemmerle, III Russell J
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