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:
Jul. 19, 1988
Filed:
Jun. 01, 1987
Karl Wahl, Grabenstetten, DE;
Bielomatik Leuze GmbH & Co., , DE;
Abstract
An apparatus for closing binding combs to bind stacks of sheet material together possesses a lower working ram having a bending pressing surface formed as a sliding face for perforating prongs of the binding comb, this sliding face being formed by two adjacent, cylindrical rollers, so that the perforating prongs are supported by exclusively rolling on the ram during the closing operation of the binding comb. As a consequence, such a small reaction force is imparted to the perforating prongs against the rolling movement that the binding comb cannot under any circumstances rotate in an undesired manner relative to a counter-ram, so that a squeezing of the binding comb in the region of an arm of the comb opposite the perforating prongs is prevented.