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. 27, 1994
Filed:
Apr. 02, 1993
Norbert Lentz, Essen, DE;
Harald Schmidt, Langerwehe, DE;
Abstract
A sheet feeding apparatus includes a first feeding device having an endless traction member circulated at a constant speed and a carrier pawl mounted on the traction member for engaging a trailing edge of a sheet to be advanced. The apparatus further has a second feeding device being a continuation of the first feeding device and having an endless traction member; a carrier device mounted on the second traction member for engaging a trailing edge of a sheet to be advanced; and a drive for circulating the last-named traction member with a periodically changing travelling speed having a minimum value not higher than the speed of the traction member of the first feeding device and a maximum value greater than the speed of the traction member of the first feeding device and at the most equal to an initial speed with which the sheet enters a sheet handling station downstream of the second feeding device. The initial speed is at least as high as the constant speed of the traction member of the first feeding device. The carrier device is situated on the upper run of the traction member of the second feeding device at the end of an acceleration phase of the periodic speed change.