Method and apparatus for applying surfacing material to shingles

Coating apparatus – Projection or spray type – Applying solid particulate material

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Details

118322, 118324, 118325, 427180, 427186, 427282, B05C 706, B05C 1906

Patent

active

057953899

ABSTRACT:
A device is provided for placing sharply demarcated patches on roofing products such as shingles or sheeting without the need for a double layer of asphalt. After the base sheet has been covered with a layer of coating asphalt, granules to form the patch are dropped on the base sheet through a hole in a belt which moves parallel to and just above the base sheet. The moving hole in the belt ensures that the patches will have sharp leading and trailing edges. The belt can have several holes for different size patches, and/or different blends of granules can be applied through the same or different holes. After the patches have been applied, the remainder of the sheet is covered with granules. Alternatively, the granules which drop on the spaces on the belt between the belt openings can be applied to the base sheet to form sharp edged patches, while the granules dropping through the holes in the belt can be removed and collected for re-use.

REFERENCES:
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patent: 2111565 (1938-03-01), Limerick
patent: 3138335 (1964-06-01), Vessels
patent: 4352837 (1982-10-01), Kopenhaver
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patent: 4800102 (1989-01-01), Takada
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patent: 4900589 (1990-02-01), Montgomery
patent: 4984169 (1991-01-01), Johnson
patent: 5283080 (1994-02-01), Lamb et al.
patent: 5415717 (1995-05-01), Permeborn

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