Processing a product including aggregate materials and a volatile component
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United States of America Patent
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Jun 10, 2003
Issued Date -
N/A
app pub date -
Nov 14, 2001
filing date -
Oct 8, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for controlling the operation of a first item of equipment for processing materials in connection with the production of a product which includes aggregate materials and a volatile component includes an oven, a gradation assembly having a plurality of screens, and a mechanism for transporting aggregate materials from the oven to the gradation assembly. The system also includes a mechanism for controlling the operation of an item of equipment if one or more of the ratios of the weight of the aggregate materials that are retained on any of the screens or that pass through all of the screens to the total weight of the aggregate materials fails to meet a predetermined standard. A preferred embodiment of the system also includes a mechanism for controlling the operation of a second item of equipment for combining asphalt cement and aggregate materials if the ratio of the weight of the asphalt cement in a sample of the product to the total weight of the sample fails to meet a predetermined standard.
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