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:
May. 21, 1996
Filed:
Feb. 13, 1995
Hajo Hagens, Wiesbaden-Auringen, DE;
Thomas Heusel, Wiesbaden, DE;
Stefan Sinzig, Wiesbaden, DE;
Wolfgang Oberhausen, Mainz, DE;
Reinhard Kober, Eltville, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
An air-displacement roller bears against a film roll and extends to the ends of the film roll. A film web is fed to a winding core via a contact cylinder and is wound to form the film roll. The air layers carried along by the roll and the film web are included between the particular uppermost roll plies and for the most part are pressed out of the film roll via the end faces of the latter by the air-displacement roller. Each of the two roller ends is movable via a pressure mechanism articulated on a roller holder, the air-displacement roller being pressed against the film roll with a linear force lower than 10 N/cm to higher than 0.2 N/cm.