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:
Apr. 18, 1978
Filed:
Dec. 03, 1976
Applicant:
Inventors:
Paul Reitemeyer, Troisdorf-Bergheim, DT;
Hans Reifenhauser, Troisdorf-Bergheim, DT;
Assignee:
Reifenhauser KG, Troisdorf, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
425467 ; 277 343 ; 425377 ; 425380 ;
Abstract
The synthetic-resin tube emerging from an extrusion die is internally sealed by a pair of sealing members having inflatable peripheries and connected to flexible members running back through the die so that one of the seals can be drawn toward the die while the other is entrained with the tube away from the latter and vice versa.