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. 04, 1992
Filed:
Oct. 23, 1989
Willi Felix, Strengelbach, CH;
Jos. Hunkeler, Ltd., Wikon, CH;
Abstract
Apparatus for the zigzagged folding and stacking of a web of material fed from below and, further, for conveying away stacks as they are finished. The apparatus comprises a reciprocating carriage containing deflection members that define a reciprocating passage through which web feeds from below and two supporting belts associated with the deflection members. The belts have upper stack-supporting surfaces that alternately lengthen and shorten as the deflection members reciprocate to form a stack. Compensating arrangements accommodate changes in length of those upper surfaces. To convey away finished stacks, one belt is endless. A releasable holding element clamps the endless belt to the carriage during stack formation but releases the belt for conveying away stacks. A drive unit is provided to drive the endless belt, when unclamped, for conveying away stacks.