The Lift Stop device includes an aluminum rod that is attached to a doorstop that is secured to a door for the purpose of lifting a doorstop from its down position to an up position.

An electromechanical door supporting system for temporarily maintaining a door in an open position having: a) a housing with an electric motor in communication with a power source; b) a base plate sized to pass underneath a swinging door; c) the base plate extending away from the housing; d) the electric motor causing rotational movement in a rod extending from inside the housing, to outside the housing and over a surface of the base plate; e) a door supporting element extending perpendicular to the extended rod; and f) the door supporting element being attached to the extended rod at a proximal location and extending over the surface of the base plate to a distal end so that rotation of the extended rod causes the distal end of the door supporting element to elevate above the base plate to secure an opened door.

An auxiliary lock for preventing a hinged door from opening all the way is provided. The lock comprises a strike plate, a flip lock plate, a catching member to receive a door knob or handle, and a means for connecting the catching member and flip lock plate. In an embodiment, the strike plate may be configured to replace any standard strike plate disposed on an inside portion of a door jamb, and the flap lock plate may longitudinally extend from a hinged connection with strike plate in the direction of an opening door so as to optionally block the door from opening and avoid obstructing a swinging door when disengaged. In use, the catching member may be placed around the door knob or handle so that the means for connecting the catching member and flip lock plate form an inseparable link between the door jamb and door itself.

An aircraft door latch arm rotation limiting device incorporates a flexible strap having a proximal end and distal end. The distal end is insertable through a loop eye proximate to an aircraft door. An elongate sleeve is disposed on the proximal end of the flexible strap and the sleeve is received over a rotatable latch arm of an aircraft door. A first receiving element intermediate the proximal and distal ends of the flexible strap releasably engages the distal end of the flexible strap to establish a first predetermined looped strap length restricting rotation of the lever beyond a partially open position. A second receiving element is disposed between the first receiving element and the proximal end on the flexible strap to releasably engage the distal end to establish a second predetermined looped strap length preventing rotation of the lever from a closed position.

An aircraft door latch arm rotation limiting device incorporates a flexible strap having a proximal end and distal end. The distal end is insertable through a loop eye proximate to an aircraft door. An elongate sleeve is disposed on the proximal end of the flexible strap and the sleeve is received over a rotatable latch arm of an aircraft door. A first receiving element intermediate the proximal and distal ends of the flexible strap releasably engages the distal end of the flexible strap to establish a first predetermined looped strap length restricting rotation of the lever beyond a partially open position. A second receiving element is disposed between the first receiving element and the proximal end on the flexible strap to releasably engage the distal end to establish a second predetermined looped strap length preventing rotation of the lever from a closed position.

The present invention is a system and method which comprises a rotating securing plate mounded on a door knob which engages a door frame to facilitate quickly securing a door to a door frame to protect the occupants of a room from an intruder. The system comprises a rotating stop in the doorknob which allows a user to open the door from within the secured room with a minimum of movements and time in the event of a dangerous situation in the room such as fire or other hazards. Through the use of an opening in the door frame, embodiments of the invention are equally applicable to doors that open inwardly and outwardly relative to an area to be secured.

The present invention relates to a door jamb assembly comprising a door stop member movably mounted thereon, configured such that the door stop is selectively operable to move from an extended, door-engaging position into a retracted door-disengaging position, and where the door stop member is adapted to initially move directly away from the face of a door with which it is in contact during use. Associated methods, door assemblies and suchlike are also provided. The door jamb assembly of the present invention is of particular use in situations where a door may be barricaded.

A door lock has a base, a wedge, and two pins. The base has an engaging end that has two holes and is wider than a base abutting end. The wedge extends upwardly from the. The two pins are configured to pass through the base holes and apertures in a floor surface to secure the base to the floor surface. An outermost edge of each of the base holes is laterally outside opposite sides of the wedge. In another embodiment, a door lock includes a base, a wedge, two pins, and a magnet. The base has an engaging end has two holes and is wider than a base abutting end. The pins are configured to pass through the base holes and apertures in the floor surface to temporarily secure the base to the floor surface. The magnet selectively biases the pins to the base when the base is not engaged.

A device for restricting movement of a door includes a door member, a floor member, and a connecting member. The door member is fixedly mounted to a door and includes a first opening having a first predetermined shape. The floor member is fixedly mounted to a floor and includes a second opening having a second predetermined shape. The connecting member includes a first leg and a second leg. The first leg extends in a first direction and has a first end removeably engaging the first opening. The second leg extends in a second direction that is perpendicular to the first direction and has a second end removeably engaging the second opening simultaneously when the first end removeably engages the first opening thereby preventing rotation of the door.