Patent ID: 7080530

Claim:
A keyless locking device comprising: a cylindrical plunger having a near end and a distal end; a sleeve for releasably and rotatably receiving the plunger, having an open top portion, and a bottom portion; a keyway axially disposed along the length of one of the plunger or sleeve, and a lip circumferentially disposed around the said plunger or sleeve; a key on the other of the plunger or sleeve, the key slidably mating with the keyway; a spring member associated with the sleeve that is compressed when the plunger is inserted into the sleeve biasing the plunger out of the sleeve; whereby to lock the device the plunger is inserted into the sleeve, the key sliding along the keyway through the lip, the plunger compressing the spring member, and then the sleeve and plunger are rotated with respect to each other and released, the spring biasing the plunger out of the sleeve and locking the key onto a surface of the lip; whereby to unlock the device the sleeve and plunger are pressed together, the plunger compressing the spring member, and rotated with respect to each other until the key and keyway are aligned with each other the spring biasing the plunger out of the sleeve, and then the plunger is removed from the sleeve, the key sliding along the keyway through the lip for removal of the plunger.