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US 6,539,761 B2Granted
Padlock by combining key-operated lock and combination lock
OwnerKuo-Tsung Yanginventor
Life of this patent
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Abstract
A padlock includes: a lock body; a shackle operatively locked in or unlocked from the lock body; a key-operated locking device formed in the lock body for operatively unlocking the shackle for unlocking the padlock by using a key, and a combination locking device juxtapositionally formed in the lock body for operatively unlocking the shackle for unlocking the padlock merely by dialing the combination to an unlocking number.
Claims6
A padlock comprising:
- a lock body;
- a shackle operatively locking in or unlocking from said lock body;
- a key-operated locking means formed in said lock body for unlocking said shackle from said lock body by a key for unlocking the padlock;
- and
- a combination locking means juxtapositionally formed in said lock body for unlocking said shackle from said lock body by dialing an unlocking combination of said combination locking means;
- said shackle, generally U shaped, including a short rod engaging with a first rod hole in said lock body;
- a long rod engaging with a second rod hole in said lock body;
- said long rod having a core rod protruding downwardly from said long rod and slidably engaging a sleeve rod which is slidably held in a sleeve rod hole formed in said lock body positioned under and communicated with said second rod hole.
5 more elements
Dependencies are inferred from the claim text.