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:
Oct. 02, 1990
Filed:
Apr. 05, 1989
Applicant:
Inventor:
Jaroslav Melzer, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ; B65G / ;
U.S. Cl.
CPC ...
414786 ; 414797 ; 414793 ; 271 183 ;
Abstract
Individual air permeably sheetlike structures are efficiently lifted from a pile by a vacuum lifter and deposited again at a processing station, the pile including as an alternate interlayer a sheet of air impermeable material.