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:
Jan. 11, 2011
Filed:
Apr. 24, 2007
Helmuth Schulz, Linz, AT;
Helmuth Schulz, Linz, AT;
Abstract
The invention relates to a device for the extrusion of thermoplastic synthetic material featuring an extruder screw () which is mounted on a housing () including a plasticizing section (P) at the inlet side, a degassing section which is mounted upstream on a discharge section (A) and a conveying outlet () operating in the opposite direction which is located between the plasticizing section (P) and the degassing section (E). A flow channel () that contains a melt filter () is bridged over by at least one of the conveying outlets () in the opposite direction. To create favorable production conditions, the extruder screw () forms a similar conveying outlet () operating in the same direction between the conveying outlet () in the opposite direction and the downstream port () of the flow channel (). The housing () has at least one degassing vent () at the transition area of the conveying outlet () operating in the opposite direction and the conveying outlet () operating in the same direction.