Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By longitudinally respacing successive articles in stream
Reexamination Certificate
2007-01-30
2007-01-30
Crawford, Gene O. (Department: 3651)
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By longitudinally respacing successive articles in stream
C198S459600, C198S453000, C131S282000
Reexamination Certificate
active
10321488
ABSTRACT:
A supply unit and a user unit employed in the manufacture of tobacco products, typically cigarettes and the like, are linked by a duct along which a mass of the cigarettes is advanced from the outfeed of the supply unit toward the infeed of the user unit. The advancing mass of cigarettes is parted at an intermediate zone of the duct either by rods or by a pair of frames, in such a way as to create a void that will accommodate a trolley directed into the duct from a housing by an elevator; once inside the duct, the trolley proceeds to push the mass of cigarettes from the intermediate zone toward the inlet of a hopper in such a way as to empty the duct completely, for example when changing over from one brand of cigarette to another. To advantage, the trolley is composed of two articulated structures so that its geometry and dimensions can be varied to match the variations in geometry and depth of the duct.
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Crawford Gene O.
G.D S.p.A.
Klima Timothy J.
Sharma Rashmi
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