Conveyors: power-driven – Conveyor system for moving a specific load as a separate unit – System includes a rotating or endless carrier with a load...
Patent
1988-03-28
1989-06-20
Millin, V.
Conveyors: power-driven
Conveyor system for moving a specific load as a separate unit
System includes a rotating or endless carrier with a load...
131 94, 131 843, 1988035, A24C 500, B65G 2900
Patent
active
048402664
ABSTRACT:
This invention relates to a method and a device for controlling the vacuum in a succession of suction endless conveyors (1 to 6) connected to a single vacuum generator (17), particularly in the machines and plants of the tobacco industry. According to the invention, upon starting, the successive suction conveyors (1 to 6) are connected to the vacuum generator (17) either individually or in groups, by successive steps and progressively in the advance direction (F) of the flow of articles being conveyed. This is accomplished by use of a suitable distributor (18, 118, 24) controlled by a device (21) responsive to the advance of the leading end of the flow of articles being conveyed.
REFERENCES:
patent: 3420243 (1969-01-01), McArthur
patent: 3757926 (1973-09-01), Gendron et al.
patent: 3901373 (1975-08-01), Rudziuat
patent: 4235330 (1980-11-01), Zausch et al.
patent: 4508207 (1985-04-01), Oberdorf
patent: 4693359 (1987-09-01), Mattei et al.
Cheng Joe H.
Millin V.
Sasib S.p.A.
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