Patent ID: 7637131
Filing Date: 2009-12-29
Classification: E05B,Y10S,Y10T

Abstract:
1. A cylinder lock device comprising: a body housing having a bore having a first end and a second end, with a direction of elongation defining an axial direction for the device; a rotatable cylindrical plug in the bore, the plug having an outer end, substantially aligned with the first end, and an inner end and having an axially extending key slot from the inner end to the outer end; a plurality of tumbler pins deployed at least partially within the plug and displaceable by a key insertable from the first end to enable rotation of the plug; and an opening mechanism comprising a shaft opening mechanism adapted to drive a shaft connected to a key emulator, the key emulator permanently deployed within the body housing, and wherein the key emulator is translatable into the key slot from the inner end, the key emulator shaped to match and engage the plurality of tumbler pins, and adapted to displace the plurality of tumbler pins, such that rotation of the plug is alternately enabled by insertion of the key from the first end and by operation of the opening mechanism; and a mechanically accessible handle permanently mechanically linked to the plug at the first end is adapted to allow insertion and removal of a key from the slot and which is further adapted to rotate the plug when the plug is freed to rotate and when no key is present in the slot.