Locks – Operating mechanism – Key
Reexamination Certificate
2011-01-11
2011-01-11
Gall, Lloyd A (Department: 3673)
Locks
Operating mechanism
Key
C070S408000, C070S423000, C070S427000, C070S454000, C070S455000
Reexamination Certificate
active
07866194
ABSTRACT:
An unlocking device includes a casing mounted to a side of a lock having a keyhole. A movable body is rotatably received in the casing about an axis. The movable body has a closed end having a hole. A key receiving seat is received in the movable body and has a key receiving hole. The keyhole is normally blocked by the closed end of the movable body. The movable body can be rotated to align the hole with the keyhole and the key receiving hole. A block is fixed to the movable body and includes a through-hole extending along the axis. A manually rotatable linking rod extends through the through-hole and has an engaging portion for coupling a key received in the key receiving hole. The key can be moved into the keyhole by moving the linking rod along the axis and can be rotated for locking or unlocking operation.
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patent: 6610947 (2003-08-01), Campana et al.
patent: 2007/0157687 (2007-07-01), Bull et al.
patent: M287361 (2006-02-01), None
Gall Lloyd A
Kamrath Alan
Kamrath & Associates PA
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