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. 24, 1987
Filed:
Oct. 29, 1986
Applicant:
Inventors:
James R Bethea, Denham Springs, LA (US);
Clifton T Knight, Baton Rouge, LA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
4251311 ; 264171 ; 4251335 ; 4251 / ; 425462 ;
Abstract
A modular coextrusion feedblock suitable for use in conjunction with melt processing vinyl polymers without excessive extruder head pressure is provided. The feedblock is designed for rapid disassembly and reassembly to minimize downtime.