Asphalt shingles - color blend drop sequence randomized by depos

Details Asphalt shingles - color blend drop sequence randomized by depos Asphalt shingles - color blend drop sequence randomized by depos

1984-01-03

1985-06-18

Beck, Shrive P.

Coating apparatus

Program, cyclic, or time control

Having prerecorded program medium

118702, 118696, 427188, 427197, 427204, B05B 1202

Patent

active

045235430

ABSTRACT:
Apparatus for depositing granules comprising feeders adapted to discharge responsive to a signal transmitter, the reception of the signal being interrupted by a moving tape, a plurality of such apparatus being employed to eliminate patterning on roofing shingles. A random signal generator may be used.

REFERENCES:
patent: 3593308 (1971-07-01), Fagan
patent: 3653543 (1972-04-01), Preikschat
patent: 3785898 (1974-01-01), Gerber et al.
patent: 3825185 (1974-07-01), Moon et al.
patent: 4164001 (1979-08-01), Patnaude
patent: 4448821 (1984-05-01), Buschor

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