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:
Jun. 13, 1989
Filed:
Sep. 03, 1987
Applicant:
Inventor:
Peter F Cloeren, Orange, TX (US);
Assignee:
P.C.E. Corp., Orange, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264171 ; 264 407 ; 4251311 ; 4251335 ; 4251 / ; 425462 ;
Abstract
The present invention provides a novel coextrusion apparatus that includes a first flow channel of a greater width than a second flow channel, and an adjustable vane blade between the channels. By the use of interchangeable plates, this unique apparatus is able to prevent any selected layer or layers of a laminate from extending to the full laminate width. This highly advantageous result is obtained by the formation of an isolating edge that is an integral part of a layer or layers that extend the full laminate width. Also provided is process for forming a laminate having an isolating edge.