Patent ID: 7555925

Claim:
A padlock comprising: a shell being hollow and having a front end; a rear end; an inner surface; an outer sidewall; a first room being formed in the shell adjacent to the front end; a second room being formed in the shell adjacent to the first room; a front opening being formed through the front end and communicating with the first room; a mounting cavity being formed in the shell through the rear end and communicating with and being adjacent to the second room; and a mounting slot being formed through the outer sidewall and being adjacent to the front end; a lock cylinder being mounted through the rear end of the shell, being mounted in the mounting cavity of the shell and having a lock rod being mounted through the rear end of the shell, being mounted in the mounting cavity and having a front end selectively protruding into the second room of the shell; a rear end selectively protruding out of the rear end of the shell; and a sidewall; and a locking assembly being mounted in the mounting cavity of the shell and selectively holding the lock rod to protrude in the second room of the shell; a shackle being mounted in the front end of the shell, being U-shaped and having a distal end being selectively received in the mounting slot of the shell; a proximal end being mounted movably through the front opening of the shell and having a sidewall and a measure of cross-sectional area; and a protruding segment being formed on the proximal end of the shackle, being mounted slidably in the second room of the shell, selectively abutting the lock rod and having a measure of cross-sectional area being larger than the measure of cross-sectional area of the proximal end of the shackle; and a resilient element being mounted in the first room of the shell and pressing against the proximal end of the shackle.