Abstract: A window security device wherein a window bar assembly is slidably mounted in a frame assembly secured to the interior surface of a wall in which the window is mounted. A releasable fastener is connected between the bar assembly and the frame assembly for holding the bar assembly in an operative position across the window and releasable to allow the bar assembly to slide downwardly to an inoperative position away from the window. When in the inoperative position, the bar assembly provides a ladder to facilitate exit through the window in case of an emergency. When in the operative position, the bar assembly extends over fasteners securing the frame assembly to the wall to prevent access to the fasteners.

Abstract: A window guard locking device (34) comprises a flange member (36) having a keyhole (42) therethrough, a member (40) having a central cavity (50), an intermediate member (38) having an opening (46) disposed between the flange member (36) and the member (40) with the axis of the keyhole, the opening and the central cavity being coincident, and at least one projection (48) extending inwardly from a wall of the opening (46) adjacent the keyhole (42) with a surface of the projection (48) being aligned with a respective wall of the keyhole (42).

Abstract: The invention relates to a security device for doors or windows for foiling unwanted entry into a secured facility comprising a limited rotational vertical rod having a plurality of parallel horizontal rods extending from said vertical rod. The parallel horizontal rods are positioned into a locked position against the interior door, into a partially open position by holding the edge of the door with curved ends and into an unlocked position away from the door.

Abstract: A window bar unit for securing a window and permitting selective opening of the unit for access to an associated window. The inventive device includes an upper grate assembly securable to a window and having a plurality of receiving tubes. A lower grate assembly includes a plurality of telescoping members which slidably extend into the receiving tubes such that the lower grate assembly can be telescopingly positioned within the upper grate assembly to provide access to the window.

Abstract: A lattice for use in providing a security closure for an opening includes a plurality of elongated lattice members with individual sliders being integrated as a member of each of the plurality of elongated lattice members. A pair of hollow guide rails are provided. The plurality of elongated lattice members are slidably disposed substantially parallel with respect to each other and are spaced along a length of the pair of hollow guide rails with the individual sliders being engaged within a portion of the hollow guide rails. A cord member extends within the hollow guide rail and is attachable to each of the individual sliders for securing the positioning of the plurality of elongated lattice members in a first predetermined position.

Abstract: The invention provides a security panel release mechanism for a sliding door or window assembly of the type having a pane movable in a frame to an open attitude in which its free edge is spaced from the frame member with which it engages when closed, the opening so exposed being secured by a security panel; characterized in that (1) the security panel is so mounted that it is movable between a closed position in which it is effective to prevent access to the opening and an open position in which the opening is available as an emergency exit, (2) the security panel is normally held in the closed position by lock means retaining the security panel adjacent the pane frame, and (3) the pane is fitted with lock release means normally ineffective so that the pane opening and closing functions are available, but adapted to be rendered operative in an emergency whereby sliding movement of the pane causes its lock release means to render the security panel lock means inoperative to free the security panel for movement

Abstract: A security system for protecting building openings with an iron work assembly for protecting the opening against unauthorized entries. The iron work assembly includes first and second portions that are rigidly mounted to each other along an abutting edge and the other portion is releasably mounted to the building. The portion that is releasable mounted to the building is of sufficient dimensions to permit a person through. A threaded positional rod has two sections joined to each other and they can be selectively maintained either coaxially with respect to each other or at another predetermined angle. A third headed section is coaxially and telescopically threaded to one of the two sections. A user keeps the sections at an angle when it wants to keep the security system locked and coaxially aligns them when the user wants to release it.

Abstract: A security door structure is affixed to an opening in a building wall exteriorly of a combination affixed glass door and sliding glass door to prevent in entrance by an intruder through the glass doors. The security door structure includes a first rigid metal frame with top and bottom rails and opposing vertical side rails and a plurality of rigid metal bars affixed between the rails. The metal bars are mounted at a predetermined distance from each other to prevent passage of a human body therebetween. The first metal frame is affixed exteriorly of the affixed glass door, and extends the same height and width as the affixed glass door. A second metal frame is pivotally mounted about a vertical axis to the first metal frame to swing between a closed position coplanar with the first metal frame and an open position pivoted exteriorly away from the coplanar position.

Abstract: A security grille (1) adapted to securely close off a window, but which may be manually released from within the building including the window while maintaining security preventing unauthorized access from the exterior of the building. The grille (1) is attached along one edge by hinges (2), or by a releasable mechanism, and is lockable in position by locking device (20) on an opposite edge. The locking device (20) may including locking bolts which protrude out through holes (21, 24 ) which engage holes (22, 25) within a surrounding frame (32). The grille (1) can comprise two portions (1a, 1b) joined at their mating edges by further hinges (23). The frame (32) is secured by bolt devices (26), or the like to the wall structure of the building surrounding the window to be protected.

Abstract: A releasing system for retaining a cover over an opening in a structure. A penetrating member connected to the protective cover is tapered at one end and has a notch just beyond the taper. A housing contains a spring latch made of bent steel strip. One end of the spring latch is firmly attached to the housing and the free end of the spring latch is located behind and partially covers an opening in the housing. The spring latch is positioned so that the tapered portion of said penetrating member will push the free end of the spring latch aside when the penetrating member is entering the housing, and the free end will fit into said notch when the penetrating member is essentially fully inserted into said housing. One end of a release cable is attached to the spring latch near its free end and when pulled with sufficient force will cause the free end of the spring latch to be pulled out of the notch releasing the penetrating member.

Abstract: A window guard screen and frame assembly installable on the jamb of a building window to prevent unauthorized access thereto. The screen is fabricated of a metal sheet whose margins are folded in to define channel-like end and side branches bordering a planar field perforated to admit light and air. The frame is dimensioned to overlie or nest within the window jamb and is secured thereto. Integral with the inner surface of the frame and bordering the opening therein is a slideway socket for receiving the screen, the socket being defined by end and side legs which complement the branches of the screen.

Abstract: An emergency release latch for releasibly locking a protective closure, such as a window grill, in closed position over an opening in a building structure to prevent intruders from entering the structure through the opening and yet permit escape of persons from the structure through the opening in the event of a fire or other emergency. The latch is relativey immune to improper installation and tampering, releases automatically in response to a fire in the immediate vicinity of the escape opening and in response to breaking of the latch actuator, is reliable in operation over long periods of time without servicing, is easily releasible by young, handicapped, and elderly persons, and is secure against forced entry when engaged.

Abstract: An improved lockable windowgate having manually operated latching menas for retaining a locking member in retracted condition against the force of gravity during the time period in which the gate is opened, so as to facilitate one-handed operation by a user. Several embodiments are disclosed. In a preferred embodiment, the latching member is in the form of a detent disengaged by downward pressure on the locking member.

Abstract: A burglar bar assembly for establishing a security barrier across a door or window opening composed of a plurality of horizontal cross bars held in vertically spaced relation by intervening and transversely related vertical members. Certain of the vertical members are fixed rigidly to certain of the cross bars, but slidably joined to others in a manner to provide for extension and retraction adjustment of the barrier to accomodate variations in door or window dimensions. The bar assembly is hingedly connected at one end to a window or door frame to provide for swinging opening and closing operation of the barrier. A safety latch is mounted adjacent one end of the bar assembly and comprises a spring loaded cam member pivotally moveable against spring bias by a remotely operated cable. The cam member serves to capture and lock the unhinged end of the barrier to a rigid locking channel secured to the window or door frame; such channel having spaced angulated slots receptive of the cross bars.

Abstract: The present invention relates to a method of installing a platform assembly designed to be mounted below a bridge deck to prevent impeding traffic below the bridge deck during installation of the paltform assembly and during demolition of the bridge. The present invention also includes an apparatus assembly for practicing the method of the invention including a platform assembly and means necessary to install the platform assembly beneath the bridge deck.

Abstract: A window guard screen and frame assembly installable on the jamb of a building window to prevent unauthorized access therethrough. The assembly screen is fabricated from a single sheet of metal having folded-in margins to define channel-like upper and lower end branches and right and left side branches bordering a planar field that is perforated in a predetermined pattern to admit light and air. The planar frame is dimensioned to overlie or nest within the window jamb and is secured to the walls or face of the jamb by adjustable brackets. Integral with the inner surface of the frame and surrounding the opening therein is a slideway socket for receiving the screen, the socket being defined by upper and lower end legs and right and left side legs.

Abstract: A high security grating which resembles a conventional wooden window shutter. The shutter uses crossbars which extend across a door or window into a shutter frame. A tie rod extends through bores in the crossbar ends to tie the crossbars together and hold them in place. A metal frame covers the tie rods and shutter blades cover the crossbars. The shutter blades can be pivoted using an operator rod. The shutters are mounted inside a building using heavy duty hinges and deadbolts which allow them to be alternatively closed over a door or window or folded away to the side.

Abstract: A latch or lock enabling a hinged burglar bar gate to be opened by a person on the interior of the protected building. Intruders cannot reach the lock. It includes a housing with an opening for hand engagement. In the opening, a spring supported lock member is pushed by hand to unlatch. Hand operation is constrained by the housing deployment, limiting use to a person near the housing and on the interior of the burglar bar gate.

Abstract: A window grating arrangement is placed across a window opening in a building wall to keep out burglars but can be removed from the window opening alongside the wall in a required time, especially so as to enable dwellers to flee in an emergency. The window grating arrangement is so constructed that a pair of parallel stationary supports are fixed on the surrounding portions of the window opening in the wall while a mobile assembly of protective bars are sustained slidably on the supports.

Abstract: An improved lockable window gate including an outer frame element adapted to be secured within a window frame and a swingable gate element pivotally mounted upon the frame element and having a locked coplanar position. An improved locking mechanism provides for multiple locking locations therebetween, thus making the forcing of the gate more difficult. The overall dimensions of the frame element are adjustable to accommodate window openings of variable height and width by means of telescopic elements above and to one side of the gate element.

Abstract: An explosive release window grille system for the window of a house or building. It has a window grille formed from a plurality of laterally spaced vertical bars that are rigidly secured in a grid-like structure by a plurality of horizontal bars. The bottom ends of the vertical bars have an eyelet loop formed in them and a bottom horizontal bar passes therethrough and functions as a shaft about which the window grille can pivot outwardly and downwardly. The opposite ends of the bottom horizontal bracket are secured to the outer wall surface by mounting bracket assemblies. The top horizontal bar has its opposite ends secured to the front wall surface by explosive release bracket assemblies. Each of these assemblies include exploding bolts having an explosive charge mounted in their shank. The bolts are inserted through the wall from the inner surface and their tips are captured by the brackets mounted on the outer surface of the wall.

Abstract: A window grille latch device comprising an arm with a hollow tube which has a pair of steel balls received in a pair of holes formed in the hollow tube, a latch means having a inner hollow tube and a outer hollow tube to receive the hollow tube, a convex ring recess formed in the inner hollow tube to receive the steel balls, a slide bar received in the inner hollow tube to contact with the steel balls, a cable with a cover connecting with the rear end of the slide bar and a control means connecting to the cable for releasing the latch means.

Abstract: A removable window guard/hinge assembly consisting of a plurality of vertical bars secured to at least two substantially horizontal bars with attached hinges, designed for mounting inside a window frame structure on the interior of the window. One side of each hinge is attached to one end of each horizontal member of the window guard and the other side of each hinge is removably insertable into metal sleeves which are embedded in the vertical member of the window frame structure. The side of the window guard opposite the hinges is secured to the window frame by a suitable lock. This design prevents removal of the window guard while it is closed but allows easy removal when it is opened, by moving the window guard assembly horizontally so that the hinge members slide out of the sleeves which are embedded in the window frame structure. After removal of the window guard/hinge assembly from the window, the remaining holes in the window frame can be concealed with plugs.

Abstract: A window bar guard system for discouraging breaking and entry through a window is constructed of components which may be readily assembled and installed by the consumer. The grillwork for the window bar guard system includes a set of telescoping tubular steel bars. The telescoping bars permit the consumer to expand or retract the grillwork system to fit a desired window. Upon obtaining the proper size of the grillwork, the steel tubular bars are permanently secured together to provide a solid grillwork custom fitted for the particular window.

Abstract: A security grille for disposition at a window, door or the like has at least a pair of vertically spaced tubular cross bars and a vertically extending tubular side member through which the grille may be fastened to a wall. Horizontal legs of a pair of angle members telescope into the ends of the cross bars while vertical legs of the angle members telescope into opposite ends of the side member. The construction enables horizontal expansion and contraction to accommodate to different installations, enables use of the side member with grilles having different cross bar spacings in the vertical direction and enables variation of the location of the attachment of the grille to the wall without displacement of the remainder of the grille. In the preferred form, the side member is fastened to the wall by latch mechanism having an enclosed cam which normally engages a pin on the side member but which can be actuated to release the pin and open the grille with a single movement of an actuator lever.

Abstract: A burglar bar assembly mountable over a window or door opening in a building may be quickly manually released from an interior portion of the building. The manual release mechanism is actuatable without a need for keys, or the like, so as to allow a building occupant to escape through the window or door opening in an emergency situation.

Abstract: A window guard latch with emergency release comprising a bracket having a channel for receiving a portion of the window guard, a lock for engaging the portion of the window guard received in the channel, the lock having a trigger for releasing the engagement with the window guard, and a solenoid linked to the trigger to operate it. A control box, mounted inside the building has an RF signal detector and means to activate the solenoid in response to the detector to release the window guard. Smoke detectors which trigger an RF transmitter and portable push button RF transmitters can transmit an RF signal to remotely activate the release mechanism.

Abstract: A window guard assembly having a first stationary frame rigidly attached to a window opening having a second frame hingedly attached thereto and sized to closely fit within the first frame. A grate is rigidly attached to the second frame. To prevent unauthorized entry, a channel attached to the second frame has a pair of locking bars slidably mounted in the channel and movable into engagement with apertures in both frames to lock the second frame in its closed position. A lever handle and extension arm are pivotally attached to the locking bars to cause movement between their locking and release positions.

Abstract: An automatically openable lid for a receptacle structure has a safety device for preventing any accident in the presence of an obstacle in the range of opening and closing movements of the lid. The device includes a safety guard extending around a front surface of the lid and beyond a rear surface thereof. The guard is mounted on the lid in a semi-fixed manner such that the guard is normally kept immovable relative to the lid during the movement thereof and such that the guard is pivotally movable relative to the lid when the guard is hit by any obstacle during the movement of the lid. Responsive to the movement of the guard relative to the lid, a detecting means is operable to energize a brake for stopping the movement of the lid.

Abstract: In a hinged security window grating that cannot be opened from the outside but which is readily releasably from within by the lowering of a vertical locking bar that engages the closed grating. The release mechanism includes a tubular member attached to the building wall for slideably engaging the lower end of the locking bar. The tubular member and corresponding point on the locking bar have slots which are engaged by one end of a pivoted lever, the opposite end of which has a pedal which, when depressed, pivots the lever so that it withdraws from the slots to permit the locking bar to vertically drop to release its lock on the grating.

Abstract: A window guard with concealed hinges and standoff members, one standoff member having therein a pin member configured for being engaged by a rotatable double cam cylinder on a shaft member extending through a bushing into the interior of the structure, with a door knob or door handle connected to the other side thereof for ready disengaging of the latch mechanism.

Abstract: A system to prevent unauthorized entry into a room through a door or a window opening. The system includes a grille hinged on one side of the opening and bar means attached at one end to the grille and extending through a port in a wall. Means are provided to hold the bar means against an inner wall to prevent opening the grille.

Abstract: Security gratings covering windows of buildings are quickly and reliably opened only from the interior of the building by hinging the grating at a first end and having at the second end short end bars that extend through holes to the interior of the building. A locking bar vertically slideable in bushing members attached to the interior wall has hook portions that extend out and engage the end bars to prevent the grating to be hinged open. The lower end of the locking bars is locked against vertical movement by a quick release pin that engages the locking bar and a fixture attached to the wall near the floor and out of reach of an intruder reaching in the window. To open the grating it is only necessary to pull the pin and vertically move the locking bar to release its hooks from the ends of the end bars.

Abstract: Security gate apparatus for securing building openings in the nature of window and door openings are disclosed; and comprise a security gate including gate-carried locking means which, while of particularly sturdy construction and effective to render it extremely difficult if not impossible as a practical matter to open the security gate from without the building opening, are nonetheless virtually foolproof in operation, and which are very readily and conveniently openable from within the building, even by those of somewhat limited mental and/or physical capacities, in readily apparent manner to thereby insure virtually immediate exit from the building through the building opening for the building occupants in emergency situations.

Abstract: A lock for releasably holding closed a fixed structure like a house or building a hingedly mounted closing element like a window guard, gate or the like characterized by a lock bar for being locked in the closed position from a lock housing that is connectable with the fixed structure and has a latch that is inaccessible by an outsider but that will snap into position about the lock bar to hold it trapped yet releases when pushed from inside the building, the push operating a bell crank that effects the release. The latch includes a trapped, slidable release bar biased to snap into engagement but pushable by the bell crank to release engagement. Specific preferred embodiments are also disclosed.

Abstract: A burglar bar apparatus and method of assembly, for safety and security, suitable for installation in apertures of buildings is disclosed. The burglar bar apparatus comprises a totally unwelded structure with primary components being a gate member having cross rods and lateral rods, mounts for attaching the gate member to the aperture, and a locking mechanism to secure the gate in the aperture. The method for assembling the burglar bar device consists of cutting appropriate lengths of rods into a grid gate that restricts the movement of the individual rods, mounting the grid gate in the aperture, and locking the grid gate for preventing unauthorized ingression or egression.

Abstract: A protective system for the vent window of a motor vehicle that comprises a metal mesh member positioned across the vent window inside the vehicle. A blocking pin connected to the mesh member extends laterally at a location that blocks rotational movement of the vent window latch from a locked mode onto the adjacent door frame wherein the vent window is prevented from being rotated from its closed position to an open position. The mesh member has a frame that includes a forward angled frame portion and a horizontal bottom frame portion that are adapted to secure the mesh member to the front door. A plate is secured to the front door via window regulator plate screws. A hinge secured to the plate and the bottom frame portion is adapted to rotate the mesh member about a horizontal axis to a position away from the vent window. A mounting bar having a slidable member is secured to the front door via vent window frame screws.

Abstract: A window or door guard made of one piece of protective material which conceals hinging and locking components from view and shields them from forcible attack. The guard may be unlocked with a key from the outside, or without a key only from the inside thereof, after which the guard may be easily opened to allow for an emergency escape. The guard may also be removed from its mounting and subsequently remounted, both without a key or tool. No springs, flexible cables, or parts inaccessible to inspection, cleaning, lubrication, or replacement are utilized.

Abstract: An anti-theft window guard comprising laterally-spaced hollow vertical posts secured at their respective opposite ends to a window frame by holder elements. The latter are formed with a flat seating flange and at least one inwardly-projecting dowel pin adapted to be removably fixed in the posts. At least two vertically-spaced horizontal rod members are adapted to extend through the vertical posts. In one embodiment, the grill structure defined by the posts and rod members is hingedly secured to the upper rail of the window frame and a locking device at the lower rail is provided. All embodiments are made of separate elements which can be easily cut to size, assembled and installed.

Abstract: An interior security door panel for receipt inside the frame of a stationary and sliding glass door and adjacent thereto. The interior security door panel preventing unlawful entrance through the door.

Abstract: A grill-type window gate apparatus includes a frame which is mounted in a window opening and a grillwork panel which is movably mounted on the frame. A panel lock assembly is mounted on the grillwork panel and is capable of locking the grillwork panel to the frame when the grillwork panel is in a closed position. A window lock assembly is mounted on the frame and engages the grillwork panel when the same is in the closed position thereby locking a window assembly which is mounted in the window opening.

Abstract: The assembly is for use with closures located in top and bottom tracks, wherein at least one of the closures is slidable in the tracks between an open and a closed position. The assembly includes an elongated rod member which is swingably attached to the top track and has up and down positions. The assembly is designed such that when the rod member is in the down position, it extends between the edge of the slidable closure and the side of the opening in which the closures are located. This prevents the slidable closure from being moved from the closed to the open position. The security latch assembly also includes a latching assembly which is attached to a wall adjacent to the closures. There is an extension member which is attached to the rod member and extends beyond the closures to the latching assembly. The extension member engages the latching assembly and holds the rod member in either the up or down position.

Abstract: Improvement in an inside-installation system for barring intruders from access through an opening such as a patio door opening, said system of the type having a series of swinging, slidable rods suspended from an over-head track and held in spaced array by a bar held in brackets at the ends with pin securance at one end and padlock securance at the other; the improvement comprising: two or more bars engaged by a headed pin with a hole for padlocking near the head so that a bar can be captured between head and hole and locked, providing a fast, secure lock for the whole system, with quick release, and providing manufacturing simplicity and improved security.

Abstract: A security gate or closure for securing an access opening or fire escape against unauthorized entry defined by a frame circumscribing the opening to be secured; a closure therefor; and a locking bar for securing the closure without a key lock which will prohibit and/or deter unauthorized entry and which can be quickly opened to provide for rapid exit in case of fire or other emergency situations.

Abstract: A window guard intended to safeguard a window of a dwelling and is constructed so that a portion thereof may be slidably moved away from its normal SAFEGUARD or UP position to provide an escape route for the inhabitants of the dwelling in the event of fire. The window guard is particularly characterized by structure responsive to the heat of a fire in automatically providing such escape route, even though all the while an intruder is denied the convenience of utilizing the window, to which the guard may be attached, for gaining unwarranted entrance into the dwelling.

Abstract: A security gate for a window or other aperture of a building includes a grille which is hingedly mounted at one side to a frame member which is secured within the aperture. The ends of the bars of the grille opposite the hinge enters slots in part of the frame and are secured therein by a locking bar. The arrangement provides a secure closure for the opening yet permits egress from the interior of the building in the event of fire or other hazard.

Abstract: A guard system for preventing unauthorized entry through sliding patio doors and the like even when the glass is broken, while preserving unobstructed appearance when not in use, includes a set of vertical rods hung from a track secured across the inside top of the patio door to be protected, and extending past it to one side so all rods can be slid out of sight behind a customary patio door curtain, and apparatus holding the rods in spaced parallel relation to bar the patio door to intruders, this apparatus including a horizontal bar across the inside of the patio door midway up and securable at each end by quick attach-detach brackets; the horizontal bar has holes through it for holding the rods in position; a sill track runs across the patio door sill on the inside and prevents the bottom of the rods from being pushed inward; the rods can be pivoted and lifted for insertion into the horizontal bar; alternative modes of deployment are disclosed.

Abstract: A metallic anti-intruder type gate, particularly adapted for use in windows offering access to a fire escape. The gate includes an outer frame element permanently installed within a window frame, and a hinged gate element supported by the frame and maintained in locked position relative thereto by a sliding bolt. The door is formed to include a rectangular peripheral frame and metal lattice which avoids adequate ventilation and light consistent with mechanical strength. The sliding bolt is shielded to permit access thereto for operation only from that side of the door facing the interior of the building in which it is installed.

Abstract: A storm window is made of two or more panes of non-shatterable plastic hinged together so that the window can be reduced in one dimension sufficiently to permit the edges to enter permanent channels in the frame. The panes are straightened and held in a plane position by latches operated from the inside.

Abstract: A latch system for a hinged window grille that enables quick one point release near the adjacent interior floor. The system includes a latch or latches which are connected to a foot stirrup by means of cables, the stirrup being located close to the floor. Each latch includes spring loaded retention means which engage the head of a penetrator member connected to the grille to secure the side of the grille opposite the hinges.