The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2008
Filed:
Jun. 06, 2002
Helmut Bacher, St. Florian, AT;
Helmuth Schulz, Linz, AT;
Georg Wendelin, Linz, AT;
Other;
Abstract
An apparatus for filling a screw () bearingly supported within a housing (), in particular of an extruder, for processing of pre-comminuted synthetic plastics material, in particular PET, has a filling opening () for the screw housing (). This filling opening () is in flow connection with the lower outflow opening () of an upright receptacle) for the material to be processed. Within the receptacle (), tools () circulate around a preferably vertical axis, and they act on the material positioned within the receptacle (). This material is introduced into the evacuable receptacle () through a sluice (). A quickly circulating tool () for creating a mixing cone () is disposed between an upper interior portion () and a lower interior portion () of the receptacle (). Within the lower interior portion () that constitutes a dwell space for the heated plastics material that has reached it for thermal homogenization thereof, also circulating tools () are disposed, which, however, are mere mixing tools without substantial introduction of power, so that within this dwell space an agglomeration of the plastics material is avoided.