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, 2005
Filed:
Aug. 07, 2001
Jürgen Krühn, Berlin, DE;
Jürgen Krühn, Berlin, DE;
Ikon Aktiengesellschaft Präzisionstechnik, Berlin, DE;
Abstract
The invention relates to a lock-key system comprising a flat key (), which is insertable into the keyway of a cylinder core (), wherein grooves () and ribs () inside the keyway are assigned to corresponding ribs () and grooves () located on both flat sides of the key (), wherein the key is subdivided from the key spine () to the key facing into different profile sections. The middle profile section is assigned to at least one groove () on one outer surface of the keyway () and to a rib () on the opposite outer surface of the keyway. Both the groove () as well as the rib () comprise a flank ('), which extends perpendicular or substantially perpendicular to the center plane of the key or of the keyway, and comprise a flank (″), which extends slantingly to this center plane. The perpendicular or substantially perpendicular flank of the groove faces the opposite slanted flank of the rib, and the perpendicular or substantially perpendicular flank of the rib faces the opposite slanted flank of the groove.