Abstract: A device for securing a door includes an elongated flat rigid member. A first segment is connected to a second segment by a transition segment perpendicular to the first and second segments. The first segment forms an aperture to admit a restraining device. The device also includes a first blocking member having two apertures and configured to engage the first member such that the restraining device restrains the first blocking member relative to the flat rigid member. The device also includes a second blocking member configured to lockably engage the second segment, thereby securing the device relative to a frame of the door with the first and second segments on opposite sides of the frame. When the device is secured and the door closed, and the first blocking member restrained relative to the flat rigid member, the door is blocked from being opened by the first and second blocking members.

Abstract: 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.

Abstract: A door anti-latch device includes a base mounted to a door or a door frame, and a lever rotatably mounted to the base so that the lever can rotate about a pivot point from an open position to a latching position. The lever includes a handle end and an opposing stop end. The lever can be rotated between the open position and the latching position by moving the lever handle. The lever stop prevents the door from latching when the lever is in the open position and will not prevent the door from latching when the lever is in the latching position. The door anti-latch device can be moved from the open position to the latching position without leaving the room or opening the door.

Abstract: A lever-handle lock includes a stationary support base adapted to mount to a door around a lever handle carried on the door. The lever-handle lock also includes a lever-handle rotation blocker mounted on the stationary support base to block selectively rotation of the lever handle relative to the stationary support base at the option of a user.

Abstract: A safety latch apparatus for retaining a swinging door in a substantially closed position relative to a door frame comprising a receiving assembly having a base portion for mounting to the swinging door or door frame and a single receiving element protruding from said base portion; and a latching assembly engageable with said receiving element and a finger protector. The latching assembly comprising: a biased or curved compliant arm having a hook element coupled at the end, wherein said receiving element engages said hook element at a single point; and a latching assembly mounting mechanism for mounting said complaint arm to said door or door frame such that the receiving assembly and latching assembly are mounted on cooperating doors and door frames. The latching assembly mounting mechanism further comprising an arm retaining plate, and an arm cover plate. The compliant arm also being mountable without a latching assembly mounting mechanism.

Abstract: A security device is provided for a cargo container having doors hinged on vertical axis, which are locked by vertical stanchions. The locking device includes a housing and a hook. The hook has a pair of vertically spaced claws, which are placed around a stanchion in straddling relation to a pair of parallel brackets to which the stanchion operating lever is pivotally connected. The housing of the locking device has a cross bar which confronts the pivot brackets, thereby preventing rotation of the stanchion when the housing and hook are coupled by a puck lock.

Abstract: A lock for overlapping parallel sliding members has a hinge member having two leaves. The two leaves include a fixed leaf permanently secured to one of overlapping sliding members, and a pivotal leaf pivotally moveable between locked and unlocked positions, to permit sliding of said overlapping members in the unlocked position, and, when turned an about 90 degree angle to the locked position, to abut the face of one of said overlapping members to prevent displacement there between. A resistance mechanism is provided for lightly-resisting pivoting of said pivotal leaf against displacement or rotation in the locked position, said resistance mechanism being indestructible in normal operation without pre-manipulation of any portion of the lock prior to pivoting movement.

Abstract: A door lock is provided for use with a door handle having a lever movable about a shaft extending perpendicularly to the lever and connected to a latch mechanism which controls the opening and closing of a door. The lock includes a housing configured to be coupled to the door handle and a blocking member movable relative to the housing between a lever-blocking position blocking movement of the lever to prevent opening of the door and a lever-releasing position permitting movement of the lever to permit opening of the door. From the lever-blocking position, the blocking member is moved to the lever-releasing position by first pushing the blocking member inwardly against a spring to free the blocking member, and then moving the blocking member relative to the housing.

Abstract: A portable security device for locking a pair of stanchions of a cargo container which employs a J bar having a hook at one of its ends for engaging one stanchion and notches on its other end which are engageable by a complementary latch on a flip plate pivotally mounted to a housing which includes an elbow providing a pocket for the other stanchion. The J bar extends through aligned opening in side walls of the housing and in front of the other stanchion to lock it in its pocket. A puck lock secured to the housing holds the flip plate latch in engagement with a notch of the J bar.

Abstract: A portable door lock includes a stop member and a connection plate, wherein the stop member has a slot defined therethrough and a rod is movably engaged with the slot. The stop member has two flat sides and one of which is to be contact an inside of a door. The connection plate has a hole and a tongue splits from the hole so as to be inserted in a recess in a door jamb. Two positioning holes are defined through the connection plate so that the connection plate cab be fixed to the door jamb. At least one engaging hole is defined through the connection plate so that the rod is engaged with the at least one engaging hole. A chain is connected between the stop member and the connection plate. The connection plate does not disengage from the doorjamb when the door is opened.

Abstract: Gravity actuated door safety devices, which prevent injury to fingers and pet's tails, are provided. A swinging door safety device comprises a pair of spaced parallel bars connected to one another at one end by a crossbar. At the opposite end of each bar, a counterweight is provided. Each bar has a ring attached at a point between the first and second ends. With the rings mounted to oppositely facing door knobs such that the crossbar spans the leading edge of the door, gravity acting on the counterweight biases the device to rotate such that the bars extend outward from the leading edge and prevent closure of the door by contacting the door jamb. The device is manually rotatable to a position wherein the bars do not extend forward of the door leading edge in order to fully close the door. A sliding door safety device comprises a mounting bracket secured near the leading edge of the sliding door. A lever is pivotally mounted to the bracket and rotatable between a stop position and a retracted position.

Abstract: A locking hinge system for allowing an individual to selectively lock a door within a desired open or closed position. The locking hinge system includes a first leaf having a plurality of first extensions and first apertures, a second leaf having a plurality of second extensions and second apertures, a tubular pin pivotally attaching the leafs together, and a locking pin for locking the leafs in a desired open or closed position. The locking pin is preferably stored within the lumen of the tubular pin and then removed for insertion into the apertures within the extensions for locking the leafs into the desired position. The first leaf may be attached to a door and the second leaf may be attached to a doorjamb or vice versa. In an alternative embodiment, a locking mechanism that is accessible from outside of the door is utilized to manipulate the locking pin within the apertures of the extensions.

Abstract: A portable door lock comprises a jam plate connected through a hinge to a latch plate through a hinge that allows the latch plate to swing from a lock position alongside a door to an unlock position alongside a door jam when the portable door lock is installed in a door jam recess between a door and a door jam so the lock can remain installed yet allow the door to be opened for normal use or locked. A jam plate tongue extends orthogonally from the jam plate adjacent a jam plate hole sized to receive a door latch striker therethrough. Preferably two opposing upper and lower hooks opening in opposite directions swivel on the latch plate on a pivot pin in a plane parallel to the latch plate one hook applicable for a right-hinged door, the other for a left-hinged door. The hooks also may wrap and hook a doorknob shank from above and below.

Abstract: The present invention is a portable door lock which comprises a bracket having a protrusion capable of insertion into a lock chamber of a doorframe. The bracket is connected by means of a hinge to a threaded bolt, upon which a hinged brace is slidably mounted. The hinged brace comprises a first member, which is adapted to be pressed against the door, pivotally connected to a second member, which is adapted to be pressed against the doorframe. A spring is mounted upon the first member and engages the second member, urging the second member away from the first member. The second member is provided with a stop which engages the first member. A thumbwheel is mounted upon and threadably engages the threaded bolt, effectively retaining the hinged brace upon the threaded bolt.

Abstract: A door locking device is provided for positionally constraining an outwardly opening door against a stop of a cooperating door frame. The door locking device includes a door engaging member attached to the free-end of the door (i.e., the unhinged-end of the door), a threaded shaft having a first end pivotably mounted to the door engaging member and a second end opposite the first end for manual pivotal movement between an unlocked position (i.e., a position wherein the threaded shaft forms an acute angle with respect to the door) and an locked position (i.e., a position wherein the threaded shaft forms an obtuse angle with respect to the door), a wedge member slidably mounted on the threaded shaft, and a retaining nut disposed on the threaded shaft for axial movement thereon.

Abstract: An abutment swivel doorstop has a mounting plate mountable onto a door frame, a stop member pivotally and slidably mounted on the mounting plate, a biasing means for urging the stop member in the disengaged position, a keeper pivotally mounted on the mounting plate, and a latch mountable on a door which is hingedly mounted within the door frame. The stop member is rotatable between a door opening position and a door blocking position and slidable between a disengaged and engaged position. The keeper is rotatable relative to the stop member between a locked and an unlocked condition. The keeper has a cam for urging the stop member against the biasing means and into the engaged condition as the keeper rotates between the locked and unlocked conditions. As the keeper rotates between the locked and unlocked conditions, the stop member engages and disengages the mounting plate and the latch for locking and unlocking the door to the door frame.

Abstract: A portable auxiliary door lock includes a lock cylinder slidable upon a bar having toothed edges to engage the locking means within the cylinder. The device differs from such locks for sliding panels, as it provides for temporary attachment between the edge of an arcuately hinged door and the adjacent door jamb to secure the door when it is closed. One end of the bar is bent at a 90 degree angle to insert into the latch recess of the striker plate. However, rather than using the lock cylinder to abut against the door and thereby at least partially blocking access to the lock cylinder for actuation due to the adjacent door knob assembly, the cylinder faces away from the knob assembly and an additional stop plate is used to retain the door. Other improvements are provided, such as adjustment for the spacing between the door and the jamb and additional security to preclude the forced removal of the lock cylinder from the bar.

Abstract: A security lock for a door used to open and close an opening defined by a door frame, the door having a reciprocable bolt movable into and out of a hole in the door frame. The lock comprises an elongate lock member having a flat end section with a central opening at one end of the lock member and a shank portion at the opposite end thereof. The flat end section is insertable between an edge of the door and the door frame. A hook element is connected to this end section and is located adjacent the central opening so as to project into the hole in the door frame during use of the lock. An integral tongue element has one end thereof connected to the shank portion and has a door engaging portion biased by spring action to move from a first position where the door can be opened or closed to a second position where the door is blocked and prevented from opening. Preferably the lock is made from spring steel.

Abstract: A portable security buckle. The portable security buckle has a tongue which is inserted in a recess in a jamb of a door frame, together with a lock tongue. A fastening assembly is used to retain the tongue and a door in position. Thus, the door can not be opened unless the fastening assembly is released.

Abstract: A portable door lock has a relatively-thin sheet-metal locking strap that fits between the door and the jamb. The strap has a fixed bolt on one end that is received in the recessed keeper in the jamb, with the door in the open position. The door is closed over the strap; and a locking dog pivotably mounted on the other end of the strap, is pivoted towards the door such that the dog partially overlaps the strap, and such that the outer face of the dog engages the inner side of the door, thereby preventing the door from being opened from the outside. The outer face of the dog may be arcuately formed to accommodate different door thicknesses within a given range, and the outer arcuate face may have a frictional layer for non-slip purposes and to prevent any marring of the door finish. A retainer may be provided over the dog and the strap to retain the portable door lock in its locking position.

Abstract: Rigid with a plate mounted on a door jamb is an inward extension, on the free end of which is pivoted a latch which swings between door-blocking and door-unblocking positions. The latch is releasably retained in door-blocking position by a flat strip having one end pivoted to the latch and a free end engageable between the door and the door jamb. The latch also has an intermediate position which permits the door to be cracked open.

Abstract: A door spacer adapted for mounting in the space between a sliding door and its top track to prevent vertical motion of the sliding door into the space adjacent its top track member, comprising a base member and first and second legs forming a triangle with an apex which extends vertically into the space between the sliding door and the top track. Means are provided to move the point of attachment of one leg to the base longitudinally along the base to adjust the vertical height of the apex above the base of the door spacer.

Abstract: A portable door locking apparatus has a body having two end portions and a retaining hook member movably attached to the body between the end portions. The retaining hook member has a hooking end portion shaped to engage an opening in a door jamb striker plate and a pair of spaced arms extending between the hooking end portion and the body, and being of a length to extend from the opening in a door jamb striker plate to one edge of a striker plate.

Abstract: Ridged with a plate mounted on a door jamb is an inward extension, on the free end of which is pivoted a latch which swings between door-blocking and door-unblocking positions. The latch is releasably retained in door-blocking position by a flat strip having one end pivoted to the latch and a free end engageable between the door and the door jamb. The latch also has an intermediate position which permits the door to be cracked open.

Abstract: This invention is an improved security door lock, particularly to night security latching arrangements, and specifically to a portable door lock that can be carried during travel for use in securing hotel and motel doors against entry. The portable door lock of this invention can also be used in the home or permanent residence for security against the entry of unauthorized persons. The convenient small size and configuration of this device makes it possible to carry it in the pocket, on a key-chain, or in a suitcase compartment while travelling.

Abstract: A swivel bar is mounted on a door jamb to swing between a position in the path of the door to block its opening and a position retracted out of the path of door-opening movement. The stop bar can be held in door-blocking position by engagement of a rib-and-groove latch. The stop bar can be moved into latch-engaged position by swinging of a keeper to move cooperating cylindrical or edgewise cams relatively which movement shifts the stop bar into latched position in opposition to the force of a latch-releasing spring. .Iadd.