A UNIT FOR FEEDING FILTERS TO A FILTER TIP ATTACHMENT MACHINE

European Patent Office Patent

PATENT NO 1603416
APP PUB NO EP-1603416-A1
SERIAL NO

04719547

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Abstract

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Cigarette filters are supplied to the infeed portion (1) of a filter tip attachment machine by a unit (2) comprising rollers (11) which divert the filters (3) into an upstream hopper (8), and a channel (9) carrying the filters (3) from the upstream hopper (8) to a downstream hopper (4) where they are released to the infeed portion (1) of the machine. Located between the infeed rollers (11) and the feed channel (9) is a variable volume storage buffer (16) with a movable wall (28) attached to the top branch (23) of a conveyor belt (24); the Belt is driven by a motor (27) interlocked to sensors (31) which monitor and control the level of the mass of filters (3) occupying the upstream hopper (8), so that the size and capacity of the buffer (16) can be adjusted to accommodate fluctuations in the flow of filters through the hopper (8).

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Patent Owner(s)

Patent OwnerAddress
G D S P AIT40133 BOLOGNA

International Classification(s)

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Inventor(s)

Inventor Name Address
DRAGHETTI FIORENZO 40059 MEDICINA
RIZZOLI SALVATORE BOLOGNA

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