Padlock with Resettable Password

A padlock whose password can be decoded and reset, consists of lock body, shackle and lock cup. In one side of the shackle resides the lock cup, a volute lock core and a blade. In the other side of the shackle resides letter wheels. All of these spare parts place together inside of the lock body and construct a completed product. The keyhole in the blades has a master key. The letters wheel links and works with the volute lock core by a moveable/loose piece, used for resetting the passwords. If the original password is garbled, the padlock will not unlock. In such a case, the master key will be used wherein the key is inserted into the volute lock core and rotated. That causes the moveable piece to move against the letter wheels and allows resetting of the password.

DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS

The component parts of the padlock of the presently preferred embodiment are as follows:1. lock body;2. lock cup;3. loose piece for resetting the passwords;4. groove of loose piece;5. gear centerline;6. key;7. blades;8. snap ring;9. letter wheels;10. shackle; and11. revolving lock core.

The padlock consists of lock body1, shackle10, and lock cup2. In one side of the shackle there is a lock cup, a volute lock core11and blades7. In the other side of the shackle there are some letter wheels9, by general lashing8. All of these components are placed together inside of the lock body and form a completed product. The blades7define a keyhole6for receiving a master key (not shown). The letter wheels link to and cooperate with the volute lock core by the loose piece3. The loose piece is used for resetting a password that is used to open the shackle when the letters/characters of the letter wheels are turned/aligned to the password, as is known in the art.

The general lashing set in the front part of the moveable/loose piece is placed inside of the groove4of the loose piece, which is set beneath the volute lock core. In the vertical of gear gudgeon in the letters wheel sets a gear centerline5. If the original password is garbled, i.e., the letter wheels are turned to the incorrect password, the key is inserted into the keyhole and revolved, such as at 180 degrees, to unlock the shackle. When the key is turned, the loose piece for resetting the password pushes forward and meets up with the gear centerline. When the centerline mark is visible, a user can reset the password by selecting a new one from the manipulation of the letter wheels. Thereafter, the key is again rotated and the new password will be stored and used for future unlocking of the lock.

It should be appreciated, that the use of the master key allows the password to be overridden and reset multiple times. In accordance with the present invention, a unique master key may be provided for each lock. However, in a preferred embodiment only a plurality of master key configurations will be available, and copies of the master keys will be paired to the specific locks.