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:
Dec. 31, 1991
Filed:
Jul. 11, 1990
Applicant:
Inventors:
Wilfried Ebmeyer, Enger, DE;
Gunter Mattiebe, Bielefeld, DE;
Assignee:
Windmoller & Holscher, Lengerich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ; B31B / ;
U.S. Cl.
CPC ...
4147927 ; 271168 ; 271180 ; 271215 ; 271217 ; 414 27 ;
Abstract
An apparatus for forming stacks from consecutively fed, flat workpieces, preferably bags, comprises a ram, which is movable up and down and serves to force the workpieces from a plane of conveyance onto a stacking plate or onto a stack formed on said stacking plate. The stacking plate is adapted to be lifted and to be lowered to an extent depending on the increasing height of the stack. In order to ensure that the ram will exert an approximately constant force on each workpiece as it is stacked, the stacking plate is adapted to be lowered against the action of a force exerted by a brake.