The method of claim 13, wherein the circular receptacle is spherical. A method of making a key for operating a lock cylinder having a spherically shaped locking member comprising the steps of: providing a key blank having a key blade forming a bitted surface in said key blade forming a circular receptacle in a side of said key blade, the circular receptacle defining a central axis that is non-orthogonal to said side of said key blade and forming a notch in said key blade adjacent to said receptacle for mating with a rib in the lock cylinder.ġ4. The method of claim 11, wherein the receptacle is surrounded by one of the planar surfaces of the groove.ġ3. The method of claim 1, wherein the two surfaces are planar.ġ2. The method of claim 9 wherein said notch is formed in said groove beneath said receptacle.ġ1.
The method of claim 8 wherein said spherically shaped receptacle is formed in said groove.ġ0. The method of claim 1 wherein said receptacle is formed in a spherical shape.ĩ. The method of claim 1 wherein said receptacle is formed in the shape of a slot.Ĩ. The method of claim 1 wherein said notch is formed in a V-shape.ħ. The method of making a key of claim 4 including the step of forming a notch in said second groove adjacent to said receptacle for mating with a rib in a lock cylinder.Ħ. The method of making a key of claim 3 including the step of forming a receptacle in said second groove.ĥ. The method of making a key of claim 1 including a step of forming a second groove in a second side of said key blade opposite to said first side of said key blade.Ĥ.
The method of making a key of claim 1 including the step of forming a second groove in the first side of said key blade.ģ. A method of making a key comprising the steps of: providing a key blank having a key blade forming a bitted surface in said key blade forming a groove in a first side of said key blade, the groove being defined by two surfaces at least partially facing each other forming at least one receptacle entirely within said groove and forming a notch in said groove adjacent to said at least one receptacle for mating with a rib in a lock cylinder.Ģ.