Patent · US Active

Device and method for removing impurities from shredded plastic

US10058898B2 · kind B2 · utility

1Cited by

7References

22Claims

0Family size

Assignee

CVP Clean Value Plastics GmbH · DE

Inventors

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

Key dates

Filing date	Jan 15, 2014
Grant date	Aug 28, 2018
Priority date	—
Expiry date	Sep 3, 2034

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 includes at least one first cleaning body having a sectionally tapered and/or cylindrical outer surface forming a first cleaning surface, and at least one second cleaning body having a sectionally tapered and/or cylindrical inner surface forming a second cleaning surface. The second cleaning body accommodates the first cleaning body such that the cleaning surfaces oppose each other and delimit a cleaning gap between each other. A drive apparatus can rotate at least one of the cleaning bodies about its longitudinal axis, and a feed apparatus feeds the shredded plastic into the cleaning gap. The cleaning surfaces each have cleaning ribs, wherein at least one flank of the cleaning ribs is inclined or curved. Cleaning bars running transversally to the direction of extension of the cleaning ribs are arranged between at least some neighboring cleaning ribs.

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