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US 7,337,639 B2Granted
Method of making a key for a pin tumbler lock
AssigneeMaster Lock Company LLC
InventorBilly B. Edwards, Jr.
Life of this patent
Estimating the term…
Abstract
An exemplary method of making a key is provided. A bitted surface is formed in a key blade of a key blank. A groove is formed in a first side of the key blade. At least one receptacle is formed in the groove. A notch is formed in the groove adjacent to the at least one receptacle for mating with a rib in a lock cylinder.
Claims14
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.
3 more elements
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.
2 more elements
Dependencies are inferred from the claim text.