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:
Feb. 02, 2016
Filed:
Jun. 29, 2010
Applicants:
Tobias Kulgemeyer, Hagen, DE;
Ulrich Krause, Lienen, DE;
Inventors:
Tobias Kulgemeyer, Hagen, DE;
Ulrich Krause, Lienen, DE;
Assignee:
WINDMOELLER & HOELSCHER KG, Lengerich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 47/90 (2006.01); B29C 47/92 (2006.01); B29C 47/00 (2006.01); B29C 47/88 (2006.01);
U.S. Cl.
CPC ...
B29C 47/92 (2013.01); B29C 47/0026 (2013.01); B29C 47/8825 (2013.01); B29C 2947/926 (2013.01); B29C 2947/9258 (2013.01); B29C 2947/9259 (2013.01); B29C 2947/92542 (2013.01); B29C 2947/92619 (2013.01); B29C 2947/92647 (2013.01); B29C 2947/92923 (2013.01); B29C 2947/92933 (2013.01);
Abstract
A method for setting the sizes of film tubes extruded by blown film plants includes changing the film tube size from an initial size to a final size, and optimizing the location of a frost area during the size change by setting the output of a cooling fan. Physical parameters of the initial and final size of the film tube are stored in a control device. The control device takes these physical parameters into account when generating control signals. The control signals form the basis for the control of the cooling fan output.