Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1978-04-26
1979-03-20
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 27, 65 28, 65134, 65335, 134 2, 134 19, C03B 3700, C03B 2500, C03C 2500
Patent
active
041452020
ABSTRACT:
A method is disclosed for processing waste glass strands and/or fibrous filaments which are produced in the course of operating a glass fiber forming plant for subsequent reuse as batch ingredients for a glass fiber forming process. The method described involves controlled thermal treatment of the waste glass strands and/or filaments to produce particulate glass which can be recycled to a fiber glass forming furnace. The reprocessing of waste glass strands and/or filaments reduces substantially the raw material cost involved in feeding glass batch ingredients to a glass fiber forming operation. Apparatus for accomplishing the reprocessing of the waste glass filaments and/or strands in accordance with the method disclosed is also described.
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Barch Herbert W.
Chardello Patrick C.
Grodin Martin A.
Harvey Frank E.
Curley John E.
Lindsay, Jr. Robert L.
McDonald Alan T.
PPG Industries Inc.
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