Abstract: The door holder includes a flexlatch, a rigid plate, and a striker plate coupler. The door holder may be adapted to retain a door open at a fixed opening width such that a smaller pet may pass through the open doorway and a larger pet or a small child is prevented from passing through the open doorway. The door holder may couple between a door knob of the door and a striker plate in a door frame by securing the flexlatch around the door knob and by hooking the striker plate coupler onto the striker plate. Spring action of the flexlatch may assure that the striker plate coupler remains coupled to the striker plate. The flexlatch, the rigid plate, and the striker plate coupler may be formed into a single element that may hang from the door knob when not in use.

Abstract: A door barricade apparatus includes a body portion having a pushing face, a port, an advancing interface, and a release interface. The apparatus further includes a shaft portion having a shaft and a door bracket. The door bracket has a throat terminating in at least an l-shaped configuration. The door bracket is pivotably coupled to the shaft at a first end and the shaft is disposed within the port.

Abstract: A door barricade apparatus includes a blade with a barb at a distal end and a tang at a proximal end. The barb is configured to be disposed within an aperture of a strike plate. A body has a top and a bottom, and the body is operably coupled to the tang of the blade. A paddle is moveably coupled to the body and is configured to selectively move between a first orientation substantially flush with the top of the body and a second orientation protruding from the top of the body. A handle is coupled to the bottom of the body and is configured to keep a user's fingers away from a door jamb. An actuator is in cooperation with the paddle, and is configured to selectively position the paddle between the first orientation and the second orientation.

Abstract: A portable entry door barricade is provided to temporarily hold a door shut against a corresponding doorframe. The entry door barricade comprises in general, an elongate bar and a channel lock. The elongate bar has a major length that extends a length at least as long as a span between opposing jams of the doorframe. The channel lock extends from the elongate bar in a direction perpendicular to the major length such that when the elongate bar is positioned relative to the doorframe and the door is closed against the doorframe, the channel lock extends to the side of the door opposite the elongate bar.

Abstract: Embodiments of the present invention include movable partitions and devices, methods and systems that help to limit or prevent lateral displacement of movable partitions. In accordance with one embodiment of the present invention, a movable partition includes two structures, each structure having a first plurality of panels, and each panel being hingedly coupled to an adjacent panel. The two panels are each supported from an overhead track at laterally spaced locations. One or more lateral restraint devices are supported from the overhead track at a location between the two laterally spaced structures. The lateral restraint device may include a trolley disposed in a channel of the overhead track and an elongated member coupled with the trolley and extending away from the trolley to a location proximate a lower edge of the first structure and a lower edge of the second structure.

Abstract: A child safety latch with a removable catch piece. The latch can restrict access to cabinetry. The catch piece can be adjusted to allow the length of the latch to be varied so as to adapt to different cabinet/drawer configurations and to facilitate entry of adult fingers to operate the latch while simultaneously restricting the opening size to prevent access by a small child's hand. This latch may require the simultaneous depression of two buttons to disengage the catch piece so as to increase the degree of difficulty required to operate the latch beyond the capabilities of a child.

Abstract: A locking base for Anti-theft lock includes a socket, a locking member and two sliding portions. The socket is disposed in a main body and extends a portion out of the main body. The locking member has a locking hole, and the locking member can extend out of the portion of the socket. The two sliding portions are disposed on the socket and the locking member respectively. The two sliding portions are matched structurally to make the socket and locking member slide correspondingly.

Abstract: A portable door lock has a threaded locking bar having a hooked end that engages the hole of a strike plate. A block and a locking nut are carried by the bar. The locking nut is movable between unlocked and locked positions. When in the unlocked position, the locking nut may slide back and forth along the bar. When in the locked position, the thread of the locking nut engages thread portions of the threaded bar to prevent the locking nut from sliding along the bar.

Abstract: A fastening mechanism for fastening a casing (2) into an opening in a wall (4), the mechanism comprising a collar element (6) fastened to the casing and arranged to be in contact with a first side of the wall, a pressing element (8) arranged to be in contact with a second side of the wall, the collar element and the pressing element being arranged to co-operate to direct a pressing force towards the w all, and a screw means (10) arranged to move the pressing element. The pressing element is arranged to rotate between a normal position and a mounting position; in the normal position the pressing element is capable of coming into contact with the second side of the wall to achieve a force keeping the casing (2) in place and in the mounting position it allows the casing to be pushed into the final mounting depth.

Abstract: A lockable hinge for preventing opening of a door wherein the fixed and pivoting hinge plates have solid, torque resistant knuckles with aligned passages configured in non circular shapes to permit insertion of a complementary hinge pin thereby preventing opening of the door. The passage may be further configured to permit insertion of a circular hinge pin to selectively allow normal opening and closing of the door.

Abstract: A compact, portable device for effectively locking a crank window in a user selected position. The body of the device can be selectively secured to or released from a window crank. When secured to the window crank, the device limits rotation of the crank by mechanical interference.

Abstract: A portable security lock for use with a hinged door includes a base plate that hooks into a keeper opening in a strike plate and a latch plate that is pivoted on the base plate and carries a locking foot which bears against the door when the door is closed. A sliding deadbolt is provided to lock the latch plate to the base plate after the locking foot is pivoted to engage the door. The sliding deadbolt is mounted on the latching plate and has a detent that projects through an opening in the base plate to keep the latching plate from rotating out of engagement with the base plate to thereby keep the latching plate locked to the base plate with the locking foot held against the door.

Abstract: A safety door lock is constructed to include a positioning plate for plugging into a mounting hole in the doorjamb, the positioning plate having a longitudinal sliding way and a serrated longitudinal rail along one side of the sliding way, and a stop plate assembly detachably inserted into the sliding way of the positioning plate for stopping the door panel in the closed status, the stop plate assembly including an angled bottom plate for stopping the door panel in the closed status, a movable engagement plate forced by a spring member into engagement with the serrated longitudinal rail of the positioning plate to stop the bottom plate from backward movement, and a spring-supported button for pressing by the user to disengage the movable engagement plate from the serrated longitudinal rail for enabling the stop plate assembly to be removed from the positioning plate.

Abstract: A latch device for a vehicle tailgate comprises a latch/ratchet mechanism, an open mechanism, a lock mechanism, and, an actuator for switching the lock mechanism to an unlocked state and a locked state. The lock mechanism includes a lock lever turning about a lock shaft. The actuator includes an output shaft which turns the lock lever through the lock shaft. The lock shaft is structured so that manual operational access is possible through a service hole in the tailgate or the vehicle body for turning the lock lever. One end of the output shaft penetrates a housing of the actuator to be connected to the lock shaft, and the other end of the output shaft is exposed to the outside through a shaft hole of the housing, and the manual access is applied to the other end of the output shaft.

Abstract: A latch of a vehicle door includes a retention plate having a shut face portion and a perpendicular inside face portion. The latch further includes a rotatable claw, a pawl resiliently biased into contact with the claw, and an intermediate release lever. The intermediate release lever has an axis of rotation substantially perpendicular to the axes of rotation of the claw and the pawl. During power release of the latch, a controller signals a power release actuator to rotate the intermediate release lever. The power release actuator is positioned in the plane of the inner face portion of the retention plate. As the intermediate release lever rotates, the cam surface of the intermediate release lever operatively rotates the pawl to disengage the claw and release the striker. If there is a failure of the power release mechanism, the mechanical linkage from the inside or outside door handle can be used to rotate the intermediate release lever and release the claw.

Abstract: A door locking apparatus for use on a door and an associated door jamb is provided. The door locking apparatus includes a custom striker plate and a U-shaped element or U-Bar. The U-shaped element has two arm portions and the custom striker plate has two arm receiving apertures for receiving the arm portions of the U-shaped element. The U-shaped element partially encircles the shank of a door knob assembly and the two arm portions fit into the two arm receiving apertures to lock the door. A device for keeping the U-shaped element in a locked position is built into the U-shaped element. A preferred embodiment utilizes a notch on the U-shaped element to keep the device in a locked position.

Abstract: A locking device (20) for double-wing gates (10, 12). The lock comprises a pair of base plates (16, 18), each secured to one of the wings so that in the closed position thereof the members (18d, 16d) are located side by side. At least one of the projecting members is formed with a dead-body receiving cavity (16g, 18g). A lock body (20) is provided, having a side portion formed with respective recesses (20a, 20b) configured and located so as to fit over both the projecting members. The lock body (20) is equipped with a key-operated locking mechanism (22) comprising at least one dead-bolt receiving cavity of the respective anchor member thereby preventing the disengagement of the lock body (20) from both anchor members. The projections (16d, 18d) may be in the form of elongated ribs, or cylindrical pins.

Abstract: A door locking apparatus for use on a door and an associated door jamb is provided. The door locking apparatus includes a custom striker plate and a U-shaped element or U-Bar. The U-shaped element has two arm portions and the custom striker plate has two arm receiving apertures for receiving the arm portions of the U-shaped element. The U-shaped element partially encircles the shank of a door knob assembly and the two arm portions fit into the two arm receiving apertures to lock the door. A device for keeping the U-shaped element in a locked position is built into the U-shaped element. A preferred embodiment utilizes a notch on the U-shaped element to keep the device in a locked position.

Abstract: A door security device operative to secure the door in a fully closed and partially opened state is disclosed. A vertically oriented housing mounted close to the handle side on the inside surface of the door contains a coaxial brace bar, the bottom end of which extends out of the housing, but does not reach the floor. A second vertically oriented brace bar is slideably mounted onto horizontal rods, which are affixed proximate to the bottom of the vertical brace bar. To lock the door, the bottom end of the slideable brace bar is inserted into one of two different floor plugs, the first of which is positioned adjacent to the location of the closed door (bracing the door in a fully closed position) and the second of which is positioned slightly interior to the first (bracing the door in a manner that allows it to be partially opened). If no security is desired, the entire device may be lifted in the housing, rotated into planar contact with the door, and locked in an inactive position.

Abstract: A latch assembly for releasably maintaining the drawer in a closed position with respect a drawer frame includes a latch guide attached to the interior surface of the front panel of the drawer. The latch guide has a guide channel defined therein, a latch member is slidably received. The latch member engages the drawer frame in its locked position and includes a body to which a spring is mounted for biasing the latch member upwardly into engagement with he drawer frame. The latch member has a ramp along which a slide member moves. The slide member is connected to a rod which, in turn, is connected to a drawer knob. When the knob is pulled forwardly, the latch member is moved downwardly against the force of the spring to disengage the latch member from the frame to enable the drawer to be opened.

Abstract: A safety door stopper for use in trip, including a wedge stopper block and a coupler member. The coupler member is used to fix the wedge stopper block under a lower edge of the door board. A bottom face of the wedge stopper block is disposed with an unsmooth face. When the wedge stopper block is fixed under the lower edge of the door board, the unsmooth face is able to enlarge the frictional coefficient between the door board and the ground and enlarge the frictional force. Therefore, the resistance against the door board is increased to make it difficult to push open the door board and ensure safety in trip.

Abstract: A door latch is disclosed herein for use in cooperation with a door jamb striker plate and a door closure sliding latch which includes an elongated latch plate having a pair of lateral spaced-apart arcuate projections insertable into the opening of the striker plate so that the latch plate outwardly extends behind the door normal thereto. A notched slot is formed along the midsection of the latch plate and a securement block is slidably carried on the latch plate having a front surface adapted to butt against the adjacent edge marginal regions of the door and door jamb. The securement block includes a manually operated plunger mechanism for releasable engagement with selected ones of the notches in the slot to maintain the block in abutment with the door and door jamb.

Abstract: A security door-locking system is described for locking closed doors of tractor cabs on truck tractors, for example, of the type used to pull over-the-road common truck trailers, and vehicles, etc., with similar pre-existing door latching systems. A flat rigid bar has a hole near one end for fitting over the striker pin on the door jamb; and the other end of the bar may be attached to a lock outside the tractor cab after the door is closed. A retainer between the lock and the door/door-jamb provides a secure locking arrangement. And a system like a ratchet provides for attaching the lock to the bar in a tight position with the door.

Abstract: A press fitted stud on one end of a metal strip is hooked into the opening of a striker plate in a door jamb and the strip extends in the space between the jamb and the edge of the door past the jamb and closed door. The extended end of the plate has holes for receiving a knurled locking pin which holds a locking plate tightly against the closed door and the door jamb to keep the door securely closed. Resilient pads of different thickness and compressibility on the locking plate facing the door keep the door tightly closed.

Abstract: A base plate with an extension which defines a pair of notched seats is secured to the frame of a pivoting door in the gap between the frame and the door. A stop plate, made from a disk of stiff metal plate having an aperture of predetermined shape and with three bent sections that form a hand grip, is initially placed over the extension on the base plate while the door is closed. The stop plate aperture allows the stop plate to be displaced horizontally and downwardly until the section of stop plate defining the opposite end of the aperture lies within the upper notched seat and rests on the base plate. The stop plate confronts the face plane of the door; the door is prevented from opening beyond the door frame by the combination of the stop plate and the base plate.

Abstract: A portable door lock comprises a planar lock plate for extending from a door frame and a door edge with a transverse tongue at one end that passes through a frame striker plate into a recess. Apertures in a central portion of the lock plate align with apertures in a block that slides on the lock plate. A locking pin extends through registered apertures in the block and lock plate to lock the block relative to the lock plate when the block is slid against the door.

Abstract: A portable security device for preventing normal opening of a door includes a hard steel strap having a hooked end for engaging a doorjamb and an extension that includes a plurality of aligned rectangular apertures. A U-shaped clip is slidable along the strap extension and has a tang formed in one leg for engagement with any of the apertures. A spring-loaded plunger is captivated between the legs of the U-shaped clip with the plunger extending beyond the clip to engage a door and force the tang into one of the apertures during installation. A bow in the leg in which the tang is formed permits a small lock to preclude movement of the tang out of the aperture and makes the device useful for securing a drawer in a mating frame.

Abstract: A press fitted stud on one end of a metal strip is hooked into the opening of a striker plate in a door jamb and the strip extends in the space between the jamb and the edge of the door past the jamb and closed door. The extended end of the plate has holes for receiving a knurled locking pin which holds a locking plate tightly against the closed door and the door jamb to keep the door securely closed. Resilient pads of different thickness and compressibility on the locking plate facing the door keep the door tightly closed.

Abstract: A portable door lock for securing a door from the interior. The lock includes a retractable blade (10) for interaction with the door strike plate and a handle (12) including mechanism to prevent motion of the blade when the handle is not coliner with the blade.

Abstract: A portable locking system for hinged door improves on the type having a right-angle end of a first member for engaging a strike plate in a door frame and second member with a right angle end for pressing against the door and laterally and detachably engaging the first member. The detachable lateral engagement of this invention includes a series of holes tangential to each other in the first member and a plurality of juxtaposed pins protruding from the second member in position for adjustably engaging any corresponding selected holes in the first member. The system preferably includes a "U"-shaped keeper for holding the first and second members together for carrying them, or after installation. For identification in the dark and for ease in handling, a second angled-end of the hole plate is made longer than the first end. Similarly, one of the legs of the "U"-shaped keeper is made longer than the other.

Abstract: An improved simplified portable padded security lock and carrier in combination for use with hinged doors comprising a lock bar provided with a slot medially thereof, an end bent out of the plane of said lock bar and an opposite end provided with ears or a tang to engage the latch aperture in the door jam striker plate. The lock bar is inserted through a padded lock body via a slotted aperture therein adjacent an enlarged portion in the end of the padded lock body, the end being designed to engage a tapered key element upon its insertion through the slot in the lock bar. After insertion of the tapered key element to such an extent as it will pass through the slot in the lock bar, an elastic retention means can be engaged with the opposite side of the lock bar so as to complete the assembly and render it unshakeable from its operative position.

Abstract: This door lock assembly has a thin mounting plate which fits snugly against the door post and passes behind the rear edge of the door without interfering with the usual latch on the door. An opening in this mounting plate passes the usual striker on the door post for engagement by the door latch. The mounting plate has an outer wall segment which extends behind the rear edge of the door and supports the housing of a lock. The lock has a slidable locking bolt which can be retracted behind the rear edge of the door, permitting the door to be opened and closed, or extended forward along the outside of the door to lock it closed.

Abstract: A security lock for attachment to the inside of a door which is secure, pick-proof, adaptable to any door-lock and door-frame combination and is easily locked and unlocked by the user. The lock is characterized by having a hook end to engage the striker plate depression and a slideable lock piece that engages the shank of the lock at adjustable positions to lock upon its serrated or toothed edge against the door and frame at their juncture and thus prevent the door from being swung inwardly.

Abstract: A security device for preventing the unauthorized opening of swinging doors. The device has two members, each of which includes two parallel tubes and a rectangular metal plate or web. Each pair of tubes is welded to the respective opposite side edges of its metal plate, and the device is adapted to slide along the floor beneath a door when the door is opened with the tubes of each pair upon opposite sides of the door. The tubes of one member are smaller than those of the other, and the pair of smaller tubes extend beyond their plate toward the other member, and are inserted into the respective larger tubes to a nested position. The overall length of the device is then such that the door can be closed. The members are then moved relative to each other from the nested position, i.e., longitudinally of the pipes so as to span the width of the door. Each pair of pipes has extensions beyond the plate which are then positioned upon opposite sides of the door frames.

Abstract: A locking apparatus for use with a cabinet or other structure having double doors separated by a jamb at the point of closure. Two brackets are mounted on either side of the jamb, extending beyond the exterior surface of the cabinet sufficiently to install a locking device. The locking device obstructs the opening of the cabinet doors. The apparatus is structured such that it can be installed and removed from the cabinet without modifications to the cabinet or the need for special tools.

Abstract: This door lock provides for locking a door securely from the inside, and it consists primarily of a lock housing, which is slidable on a lock plate. The lock plate includes an integral pin, which is placed in an anchor plate that is fastened secure, to the threshold of the door. The device includes, on its interior, a spring-loaded push-bar and a locking pin, for rendering the lock housing secure to the door and lock plate, and it further includes a recessed set screw to hold the locking pin secure, in the event a would be intruder breaks a glass in a door provided with such, in order to push the push-bar for releasing the lock.