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. 25, 1992
Filed:
Oct. 02, 1990
Applicant:
Inventors:
Haim Danon, Kiriat Ono, IL;
Amir Gnessin, Tel-Aviv, IL;
Assignee:
Optrotech Ltd., Nes/Ziona, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271276 ; 271196 ; 354344 ; 355 73 ;
Abstract
In a drum having a flexible sheet material removably held on to an outer surface thereof, a method for reducing aerodynamic lift of an edge of the material, comprising the step of introducing a thin sealing strip between the outer surface of the drum and an inner surface of the film at the edge of the material. The lift may be caused by the natural tendency of the sheet material to curl at its edges and may be exacerbated by the flow of air under the edges as the drum rotates.