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:
Mar. 30, 1976
Filed:
Apr. 03, 1975
Applicant:
Inventor:
Werner Zimmermann, Lengerich, DT;
Assignee:
Windmoller & Holscher, Lengerich, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ; B29D / ;
U.S. Cl.
CPC ...
425 / ; 4253 / ;
Abstract
A rotary blowhead for making tubular plastics film and comprising interior and exterior air cooling means is adapted to be centrally fed with plastics material from a stationary extruder and is connected to stationary air fans by means of segmented air distributing means.