Cleaning arrangement for a roller metering device

Details Cleaning arrangement for a roller metering device Cleaning arrangement for a roller metering device

1987-08-03

1989-03-14

Shaver, Kevin P.

Dispensing

With cleaning means

222220, 222342, B65D 8854

Patent

active

048118648

ABSTRACT:
A roller metering device comprises a roller, which has continuous elongate grooves longitudinally thereof spaced angularly around the periphery thereof, mounted in a hopper so that it grasps and forwards a volume of the particulate material within the hopper for each movement of a recess past a metering edge into a plurality of cups and venturis arranged along the length of the roller. A cleaning device for the roller is provided which is driven by the roller and comprises a plurality rods carried in angularly spaced arrangement around an axis of rotation of the cleaning device with each rod extending along the length of the roller. In one arrangement there are twelve recesses in the roller and six rods on the cleaning device with the cleaning device driven at a 2:1 ratio in speed relative to the roller. This causes each rod as it engages a respective one of the recesses to move forwardly relative to the recess and also to move into the recess to cause a wiping action of the rod along the surface of the recess.

REFERENCES:
patent: 233040 (1880-10-01), Spangler
patent: 1515993 (1924-11-01), Beyer
patent: 2732086 (1956-01-01), Schnyder
patent: 3203601 (1965-08-01), Carson
patent: 3630416 (1971-12-01), Weisselberg et al.
patent: 4053088 (1977-10-01), Grataloup
patent: 4264023 (1981-04-01), Stocks et al.
patent: 4307822 (1981-12-01), Hardesty

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