Abstract: A quick release door lock is disclosed which includes a unitary body of thin, flat, hardened steel. The body terminates at one end in an integral tongue and at the other in an integral bent flange. A unitary, generally U-shaped slide is movable along the body between door engaging and door releasing positions in response to the movements of an operating rod. The operating rod is reciprocal and rotatable through the flange and is provided with an unthreaded adjusting section and a threaded securing section. The threaded section is designed with a double lead special thread to provide increased linear movement of the slide in response to rotation of the operating rod. The tongue is a removable fit within the door jamb recess and the slide is movable into engagement with the door to secure the door at the jamb between the body tongue and a pressure face of the slide.

Abstract: A portable door fastener is disclosed which includes a body of thin, sturdy material which can be inserted between a door and a door jamb and which includes a projection to engage in the jamb latch recess. The rearward end of the thin body is provided with a threaded block through which a partially threaded operating bolt is longitudinally movable. The operating bolt forwardly attaches to a pressure plate, which plate is in sliding engagement with the body. The operating bolt terminates rearwardly in a handle which is used to turn the bolt through the threaded block to force the pressure plate against the door to prevent relative movement between the door and the door jamb.