Patent · US Active

Method for progressive separation and extraction of raw materials from residential roofing products

US8919681B1 · kind B1 · utility

36Cited by

20References

14Claims

0Family size

Inventors

Jonathon Daniel Horton · Barrington, US
Alan Clarke · Oslo, NO

Key dates

Filing date	Jan 31, 2013
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Mar 17, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/62
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

This invention relates to a progressive method of separating and extracting raw materials from residential roofing products for re-use as ingredients for asphalt and fiberglass related products, including roofing materials. The method includes reduction, separation and then extraction of raw materials. The resulting products are alternative roofing granules, asphalt coated limestone, limestone, recycled asphalt and recycled fiberglass strand powders.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.