Method of manufacturing granule coated asphaltic articles
AssigneeFirestone Building Products Company, LLC
InventorsJoseph Standeford, Wensheng Zhou, Lance Black
Life of this patent
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Abstract
A method of manufacturing a granule coated asphaltic article is disclosed. The method includes applying molten asphalt to a reinforcement to create an asphaltic sheet, the asphaltic sheet having a top surface and a bottom surface. Next, the asphaltic sheet is bent to form an arcuated top surface of the sheet. The method concludes by applying a plurality of granules to the arcuated top surface of the asphaltic sheet.
Claims21
A method of manufacturing a granule coated asphaltic article comprising the steps of:
- applying liquid asphalt to a reinforcing sheet to create an asphaltic sheet, the asphaltic sheet having a top surface and a bottom surface;
- applying a first coating of granules over the top surface of the asphaltic sheet while the asphaltic sheet is in a flat orientation;
- bending the asphaltic sheet to form an arcuate top surface of the sheet;
- and
- applying a second coating of granules over the arcuate top surface of the asphaltic sheet.
A method of manufacturing a granule coated asphaltic article comprising the steps of:
- applying a first coating of granules to a top surface of an asphaltic sheet;
- and
- applying a second coating of granules to the arcuate top surface of the asphaltic sheet;
- wherein the granules forming the first coating of granules have a first weight average granule size, the granules forming the second coating of granules have a second weight average granule size, and the ratio of the first weight average granule size to the second weight average granule size is between 1.6 and 6.0.
A method of manufacturing a granule coated asphaltic article comprising the steps of:
- applying a first coating of granules to a top surface of an asphaltic sheet while the asphaltic sheet is in a flat position;
- bending the asphaltic sheet to form an arcuate top surface of the sheet;
- and
- applying a second coating of granules to the arcuate top surface of the asphaltic sheet;
- wherein the granules forming the first coating of granules have a first weight average granule size, the granules forming the second coating of granules have a second weight average granule size, and the ratio of the first weight average granule size to the second weight average granule size is greater than 2.0.
Dependencies are inferred from the claim text.