The 'Lock-Jockey' latch-opening tool is simple in its design principal and use. It utilizes the basic physical principles of compression and spring release forces to operate the interior security latches from a position on then other side of the door. Once an individual has obtained an access key for the main door lock, the other door should be opened to the fullest extent possible. This is usually two or three inches. The tool is then inserted and aligned with the latch device. The handle of the tool is positioned against the door-jamb and stop. The tool is made of heat-treated flat steel which has been bent in such a manner that will allow it to fit between the door and its jamb even when the door is closed upon it. The various curves at the end of the tool move and compress between the latch and the door itself applying pressure in the direction that unlocks the device. The notch between the curves allows the locking arm of the latch device to pass through it while approaching the area designed for its release. The door should then be pulled closed quickly. When the door reaches its fully closed position again, the resultant compression on the latch forces it open to a point where it is no longer locked. The door can then be fully opened.

    It is recommended that the door handle remain turned when pulling the door closed to avoid having to use the access key again. When properly done, and with a little practice, the entire process can be done in roughly 3-4 seconds. The steel used to make the "Lock-Jockey" is extremely resilient and has been found to hold its shape without the need for any adjustments in over 100 test uses. The heat treatment offers protection against rust as well.