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:
Mar. 04, 1997
Filed:
Mar. 21, 1996
Applicant:
Inventor:
Jan-Udo Kreyenborg, Munster, DE;
Assignee:
Kreyenborg, Inc., Norcross, GA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
210236 ; 210447 ; 425185 ; 425190 ; 425199 ;
Abstract
The invention relates to a filter device for extruders and injection-molding machines for the continuous processing of thermoplastic, the throughflow bore in the screen plunger being of a round design in the region of the inlet side and of the screen chamber and narrowing ovally following on from the rear side of the screen pack, the long axis of the oval extending in the direction of the displacement direction of the screen plunger.