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US 4,860,883 AGranted
Apparatus for cleaning of an endless conveyor belt
AssigneeB.A.T. Cigarettenfabriken GmbH
InventorsPer Knaul, Fritz Schelhorn, Roland Witte
Life of this patent
Estimating the term…
Abstract
An endless conveyor belt is washed by a cleaning roller engaging the bottom run of the empty belt. The cleaning roller is sprayed by nozzles set counter to the direction of rotation of the cleaning roller. The surface of the cleaning roller is preferably covered with a felt-like material. Excess cleaning fluid is squeezed out by a pressure roller. A scraper, downstream of the cleaning roller, carries residual dirt or cleaning fluid remaining on the conveyor belt into the housing of the washing apparatus.
Claims10
An endless conveyor belt apparatus, comprising:
- an endless conveyor belt for conveying goods including two press down rollers;
- a cleaning roller pressing against and rotatably driven in a direction opposite to a part of the conveyor belt engaged by said cleaning roller, said cleaning roller being movable relative to the conveyor belt between operative and inoperative positions, in said operative position the two press down rollers of the conveyor belt engage and press the conveyor belt against said cleaning roller on opposite sides of said cleaning roller under predetermined pressure;
- spraying means for directing cleaning fluid at an acute angle against a surface area portion of said cleaning roller in a direction counter to movement of said surface area portion, said surface area portion being generally opposite the conveyor belt;
- and
- pressure roller means, following said spraying means in the direction of cleaning roller rotation, for engaging and removing excess cleaning fluid from said cleaning roller.
2 more elements
Dependencies are inferred from the claim text.