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. 29, 1990
Filed:
Aug. 03, 1988
Applicant:
Inventor:
Louis M Sardella, Cockeysville, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271112 ; 271 35 ; 271115 ; 271118 ;
Abstract
A method for making a lead edge feeder for feeding corrugated paperboard is described which eliminates the need for a complex indexing transmission. The method includes connecting a rocker shaft to a rocker gear so that the rocker gear rotates in a feed direction and then in a direction opposite the feed direction. Feed wheels in turn rotate in a feed direction and then in a direction opposite the feed direction. The stack of paperboard to be fed intermittently moves relative to the feed wheels so that initial contact between the lowermost sheet to be fed initially contacts the feed wheels when the feed wheels are moving in a direction opposite the feed direction.