Padlock

Details Padlock Padlock

2007-08-15

2009-02-24

Gall, Lloyd A (Department: 3673)

Locks

Portable

Padlocks

C070S025000, C070S284000, C070S285000

Reexamination Certificate

active

07493785

ABSTRACT:
A padlock can be unlocked by an owner dialing an unlocking number or security personnel using a general key. The padlock includes a lock body, a block, a shackle, a general locking device and a private locking device. The lock body includes a first channel and a second channel therein. The block is inserted in the second channel. The block includes a receptacle therein. The shackle includes a long arm movably disposed in the first channel and a short arm for engagement with the receptacle of the block. The general locking device is disposed in the lock body for locking and unlocking the long arm of the shackle. The private locking device is disposed in the lock body for controlling the block so that the block can be engaged with and disengaged from the short arm of the shackle.

REFERENCES:
patent: 1426978 (1922-08-01), Gambino
patent: 1445719 (1923-02-01), Rozycki
patent: 1545666 (1925-07-01), Kornhaber et al.
patent: 1560596 (1925-11-01), Marra
patent: 1737477 (1929-11-01), Schmidt
patent: 1755521 (1930-04-01), Smith
patent: 3349584 (1967-10-01), Russell et al.
patent: 4170884 (1979-10-01), Calegan
patent: 6029481 (2000-02-01), Lai
patent: 6708534 (2004-03-01), Ruan
patent: 6877345 (2005-04-01), Misner et al.
patent: 2002/0088256 (2002-07-01), Taylor et al.
patent: 2003/0000264 (2003-01-01), Yang
patent: 2004/0226324 (2004-11-01), Loughlin et al.

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