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. 16, 1982
Filed:
Jun. 08, 1981
Applicant:
Inventors:
Assignee:
Gebr. Happich GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
264135 ; 264174 ; 2641 / ; 264237 ; 264327 ; 425113 ; 425325 ; 4253 / ; 425467 ;
Abstract
The invention concerns the production of an extruded plastic sectional bar, or the like profiled element, having one longitudinally extending section which has a duller surface finish and another longitudinally extending section which has a less dull surface. To accomplish this, the extrusion tool, at the outlet end, has first and second temperature control devices so that as the bar is being extruded, the first section of the bar is exposed to one temperature while the second section of the bar is exposed to a different temperature, for producing the different surface finishes.