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:
Nov. 15, 1994
Filed:
Feb. 28, 1994
Applicant:
Inventors:
Annibale Vezzoli, Carugo, IT;
Marino Lamperti, Carugate, IT;
Antonio Addeo, Novara, IT;
Francesco Milani, Lonate Pozzolo, IT;
Bruno Albrisi, Lonate Pozzolo, IT;
Assignees:
Centro Sviluppo Settori Impiego S.r.l., Milano, IT;
Milani Resine S.p.A., Milano, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
4251331 ; 264173 ; 2642098 ; 264515 ; 425207 ;
Abstract
A die for co-extruding structural shapes is provided with a central cylindrical duct through which the molten polymeric material destined to constitute the central core of the structural shape flows, and a conical gap, coaxial with the central duct, into which the polymeric coating material is fed which will constitute the outer skin of the structural shape.