External door lock mechanism invention

The security device of claim one wherein said locking pin is substantially cylindrical, and further comprises a tail portioned designed to protrude beyond the body of said pin from an acute angle.

A security device for securing a door comprised of hinges which attach said door to a door frame, from the non-hinged side of said door, said device comprising a substantially flat and substantially rectangular shape base member having at least one opening to receive a head portion of a locking pin;

• said locking pin comprised of a head portion dimensioned to protrude through the opening in said base member, wherein further said locking pin is substantially cylindrical and contains a tail portion which protrudes at an acute angle from the longitudinal access of said locking pin, and a cover plate dimensioned to fit between said door to be secured and said base member, said cover plate having at least one opening designed to operatively connect the said head of the locking pin, said base plate member and the cover plate.

A locking device for temporarily securing a door to a door frame pivotally supporting the door, the door frame being of the type having a horizontal upper member connected to a vertical side member, and the intended door being of the type having a opening between said doors opposite side surfaces, the locking device comprising a first plate containing at least one opening and projecting substantially parallel to the outer side of said door between at least two opposite edges of the door frame in position to engage the horizontal and vertical members of the door frame when the door is in the closed position;

• a pin including a portion extending through the opening between the hinged and non-hinged side of said door and a head for securing the pin to the first plate, and a tail portion disposed to contact the inner side of said door;
• and
• a second plate having an opening therein for receiving the head of said pin, wherein said second plate is dimensioned to contact the outer side of said door to secure the first plate and the pin when a locking means is engaged.