Multi-use lock cylinder and method of assembling it

E - Fixed Constructions – 05 – B

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70/38

E05B 17/04 (2006.01) E05B 63/00 (2006.01)

Patent

CA 1307126

MULTI-USE LOCK CYLINDER, AND METHOD OF ASSEMBLING IT Abstract of the Disclosure A lock cylinder for use with either a deadbolt lock or a key-in-the-knob lock. The lock cylinder (31) includes a hollow cylindrical body (35) having a radially projecting, pin-containing chamber (34), extending along the length of the body, and a cylinder plug (36) rotatably accommodated within the body. The plug holds a series of pins, which can be brought into alignment with the pins in the chamber, and the plug has a slot for accepting a key. Two tailpieces are provided, either of which may be alternatively secured to the cylinder plug in non-rotatable relationship to the plug. One of the tailpieces (44) is cooperable with the mechanism for operating a deadbolt lock, and the other tailpiece (62) is cooperable with the mechanism for operating a key-in-the- knob lock. One end of the cylinder plug is formed with a transverse slot (40) and an annular slot (41), an extension (45,64) at one end of each tailpiece fitting into the trans- verse slot, and a resilient snap ring (47) fitting into the annular slot to prevent separation of the tailpiece from the plug.

553944

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