Coating processes – Solid particles or fibers applied – Roofing produced
Patent
1988-09-07
1990-02-13
Beck, Shrive
Coating processes
Solid particles or fibers applied
Roofing produced
427187, 118310, 118312, B05D 112
Patent
active
049005898
ABSTRACT:
A granule application device for use in making a shingle roofing product is provided. This device includes a sheet having a weather protected headlap area and having a weather exposed butt area which moves continuously from an upstream end to a downstream end. The device includes a blender applicator which dispenses blended butt granules on the sticky, asphalt treated, upper surface of the sheet for covering the butt area only. The device also includes a headlap applicator which dispenses less expensive headlap granules on the headlap area only. The device also includes a recycle applicator, which dispenses recycle granules over the blended granules on the butt area only, and dispenses scrap granules over the headlap area only. The moving sheet is supported on a talc drum and a slate drum near the downstream end, and is supported on a back roll near the upstream end thereof. The manual control of the dispensing of the less expensive headlap granules, and the overall arrangement, reduces the percentage of more expensive blended granules in the recycled granules, thereby minimizing the overall cost of the shingle roofing product.
REFERENCES:
patent: 1154334 (1915-09-01), Overbury
patent: 2348578 (1944-05-01), Soissa
patent: 2661303 (1953-12-01), Fasold et al.
patent: 3132964 (1964-05-01), Young
patent: 3184324 (1965-05-01), Ryckman
patent: 4352837 (1982-10-01), Kopenhauer
patent: 4478869 (1984-10-01), Brady et al.
Beck Shrive
GAF Building Materials Corporation
Lagani Jr. Anthony
Laughlin Richard T.
Ward Joshua J.
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