Codeable padlock

A padlock for receiving a lock cylinder codeable to a pre-existing key, said padlock comprising:

• a padlock housing;
• a shackle protruding from said housing having a secured position wherein said shackle is releasably secured in said housing, and an unsecured position wherein at least a portion of said shackle is removed from said housing for attaching and removing said shackle from an item to be secured;
• a shackle retainer control having a locked position engaging said shackle to prevent movement of said shackle between said secured and unsecured positions, and an unlocked position disengaged from said shackle allowing movement of said shackle between said secured and unsecured positions;
• an actuator cavity included in said housing for receiving a lock cylinder codeable to a pre-existing key upon insertion of said pre-existing key into said lock cylinder, and said lock cylinder adapted to manipulate said shackle retainer control between said locked and unlocked positions once inserted into said actuator cavity;
• at least one guide member protruding from a wall of said actuator cavity for engaging a complementary surface recess in said lock cylinder to prevent rotation of said cylinder when inserted into said housing;
• and,
• at least one cylinder retaining member carried by said padlock housing for engaging said lock cylinder to prevent removal of said cylinder from said housing.

A padlock codeable to a pre-existing key, comprising:

• a padlock housing carrying a shackle;
• a shackle retainer control for securing and releasing said shackle in said housing;
• an actuator cavity disposed in said housing in communication with said shackle retainer control;
• and,
• a codeable lock cylinder carried in said actuator cavity being coded to a pre-existing key by insertion of said pre-existing key into said lock cylinder;
• wherein said lock cylinder is operatively connected to said shackle retainer control for moving said shackle retainer control between a locked position securing said shackle in said housing and an unlocked position releasing said shackle when said pre-existing key coded to said lock cylinder is inserted into said lock cylinder and rotated to cause actuation of said shackle retainer control.