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. 27, 2007
Filed:
Jun. 15, 2005
Ernst Keller, Wollerau, CH;
Ernst Keller, Wollerau, CH;
Keso AG, Richterswil, CH;
Abstract
The locking cylinder has a basic code which can be changed using at least one change key ('). A rotor () is mounted in a cylinder housing () and has a keyway () into which a shank of a standard key which is provided with control surfacescan be pushed in order to position the tumblers which are arranged in three first rows (A, B, C). Further tumblers have coding elements () which are arranged in further bores in the cylinder housing () in a programming position of the rotor (). The change key (′) interacts with three further rows (D, E, F) of tumblers in the programming position, these tumblers being arranged in slides. These further rows (D, E, F) each contain tumblers having coding elements (C). The locking cylinder can be produced with a smaller outside diameter and be installed in a particularly cost-effective manner.