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. 21, 1994
Filed:
Feb. 18, 1993
Applicant:
Inventors:
Wilhelm Kahlen, Troisdorf-Eschmar, DE;
Peter Niegerl, Bad Honnef-Rottbitze, DE;
Assignee:
Reiffenhauser GmbH & Co. Maschinenfabrik, Troisdorf, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425 721 ; 4253261 ; 4253871 ;
Abstract
A device for feeding film-blowing air into the plastic tube and film bubble of a blowing head is connected to the film-blowing head and includes between the foot side and head side outlets thereof, with at least one intake device and at least one further outlet in spaced relationship and with matched flows to stabilize the tube and the neck formed between the tube and the expanding bubble.