Patent · US Active

Device and method for removing impurities from shredded plastic

US9498800B2 · kind B2 · utility

16Cited by

4References

8Claims

0Family size

Assignee

CVP Clean Value Plastics GmbH · DE

Inventors

Michael Hofmann · Hamburg, DE
Alexander Gercke · Bad Oldesloe, DE
Carsten Wermter · Hamburg, DE

Key dates

Filing date	Jul 13, 2012
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Dec 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/62
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A device for removing impurities from shredded plastic has a first and second cleaning disk with first and second cleaning surfaces, the cleaning surfaces are opposite each other and delimit a cleaning gap. A drive device rotates the cleaning disks, and shredded plastic is fed between the cleaning disks. The cleaning surfaces have a plurality of cleaning ribs extending between an inner and outer edge of the cleaning surfaces, wherein at least one flank of the cleaning ribs is angled or curved relative to the axial direction of the respective cleaning disk, and a plurality of cleaning bars running transversally to the direction of extension of the cleaning ribs are arranged between at least some cleaning ribs neighboring each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.