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. 08, 2000
Filed:
Oct. 28, 1997
Kolbus GmbH & Co. KG, Rahden, DE;
Abstract
A sheet feeder for use in a book assembling machine comprises a magazine having a movable base which defines a support plane for a stack of folded sheets. The feeder also includes a pneumatic separator, which creates a gap between a corner of the lowermost sheet of a stack in the magazine and the next adjacent sheet, and a device for injecting air into the thus formed gap to produce an air cushion. The movable magazine base functions as a conveyor to move, with the assistance of the air cushion, the leading edge of the lowermost sheet in the stack in a planar manner to a withdrawal conveying system where the sheet is engaged and subsequently pulled from the magazine. The withdrawn sheet moves, under the influence of a transfer mechanism in one embodiment, into registration with an assembly conveyor.