Patent ID: 7487653
Filing Date: 2009-02-10
Classification: E05B,Y10T

Abstract:
1. A key comprising: a longitudinally extending key blade ( said key blade having a side material region at one side of said key blade defined upwardly by a longitudinally extending shelf surface, which is at least partially interrupted by a side code pattern cut into said material region so as to form a wave-like guiding surface ( said wave-like guiding surface ( said wave-like guiding surface including at least one side code portion ( said at least one side code portion ( characterized in that in addition to said number of vertical code levels for said at least one side code portion, there is an extra code level located near said shelf surface at a higher level than said concavity configurations, and there being provided at least one extra side code portion in the form of a longitudinally extending, extra side code segment ( said extra side code segment having a predetermined length for forming a substantially flat supporting surface portion with sufficient friction to position and retain, upon fully inserting the key blade into a lock, the associated finger in a correct pivotal orientation, corresponding to one of said pivotal end positions of the finger, pointing obliquely towards said free end of the key blade, whereby the number of possible code combinations is increased.