Patent ID: 8746021

Claim:
A retractable cable combination lock assembly for laptop computers comprising: a combination lock having a hook that can be hooked up to the frame of a computer via a built-in hole including a thunderbolt slot, USB port, or HDMI port in the frame of the computer and a combination locking mechanism, said combination locking mechanism comprising: a plurality of code disks, each of said code disks having a plurality of codes; a plurality of upper gears, each of said upper gears located beneath and connected to one corresponding said code disk, each said upper gear has one protrusion which can be set to a plurality of positions; a plurality of lower gears, each of said lower gears located beneath one corresponding said upper gear, each said lower gear has one indentation which can be set to a plurality of positions; a plurality of springs, each of said spring located between and connected to each said lower gear and its corresponding said upper gear; a plurality of axles, each axle channeling through the center of each said lower gear and its corresponding said upper gear; a lifting plate located beneath said lower gears having a plurality of holes for said axles to pass through; a hook connected to said lifting plate for hooking up to the frame of a laptop; an enclosure for enclosing said locking mechanism, said enclosure having a plurality of holes on its top, each hole receiving one of said code disks; a lock side button located on the sides of said enclosure, said lock side button when pushed causing said lifting plate to move upwards; and a plug head connected to one end of said enclosure for enclosing said hook and plugging into the thunderbolt slot or USB port or HDMI port of the laptop computer; wherein when all three protrusions on said upper gears lined up with said indentations on said lower gears said lower gears can be lifted up when said side button is pushed to move up said lifting plate and said hook so that the laptop computer can be unlocked; a retractable cable having one end securely connected to said lock and being used to secure the laptop to an immovable object; and a case with retractable mechanism for retracting, storing and carrying said retractable cable and lock, said cable having the other end attached to said case.