Method of rotating or oscillating a flow of granules to form a p

Details Method of rotating or oscillating a flow of granules to form a p Method of rotating or oscillating a flow of granules to form a p

1996-12-30

1998-08-18

Beck, Shrive

Coating processes

Solid particles or fibers applied

Roofing produced

427187, 427188, B05D 112

Patent

active

057956227

ABSTRACT:
In a method of forming a pattern of granules on an asphalt coated sheet moving in a machine direction, a flow of separate first granules and second granules is discharged onto the sheet. The flow of granules is rotated to form a pattern of first and second granules on the sheet that changes along the machine direction. Another embodiment of the invention provides a method of forming a pattern of granules, in which the flow of granules is oscillated in a direction transverse to the machine direction. The flow of granules can also be discharged intermittently onto the sheet.

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