Abstract: A locking mechanism for a notebook computer has an ejecting unit which elastically pushes a latch up to a certain height. The ejecting unit includes an elastic member installed at a main base panel of the notebook computer and an ejector for pushing the latch up due to the elastic member when a display panel is to be opened. Thus, the notebook computer can be easily opened and closed and also the external appearance of the notebook computer looks more aesthetically pleasing.

Abstract: A limiter or stop for a sliding door or sliding panel is provided. The limiter includes a shaft disposed within the escutcheon that is connected to a head. The head includes two spaced-apart holes for frictionally receiving locking rods or bars. The head is further connected to retaining elements for securing the rods in position after insertion. The rods may be manually removed and inserted into either hole in the head. Rods of differing lengths are provided. Accordingly, a single limiter is provided that may be installed in a variety of different positions.

Abstract: A latching mechanism for selectively securing a movable panel to a stationary member. The latching mechanism includes a latch for attachment to the movable panel and a striker for attachment to the stationary member. The latch includes an actuation arm having a blade and a base plate defining an aperture. The striker includes a post having a bulbous end disposable in the aperture and a slot extending inwardly from the bulbous end. The actuation arm is coupled to the base plate for movement between an engaged position where the blade is operably disposed in the slot and a released position where the blade is operably removed from the slot.

Abstract: A latching apparatus controls the motion of a first member relative to a second member. The first member is reciprocally moveable relative to the second member in forward and reverse directions along the line of motion. The second member carries a latch which is movable within a plane parallel to the line of motion. The latch has a first pawl and a second pawl. The second member carries a pivot for carrying the latch so that the latch is rotatable relative to the second member about the pivot which is orthogonal to the line of motion. The latch is shiftable between first and second positions relative to the pivot. The first member bears a plurality of engagement features linearly arrayed along the line of motion. Each engagement feature has a generally forward facing first face and a generally rearward facing second face. When the latch is in the first position, it is biased for its first pawl to engage the engagement features.

Abstract: A locking device for a container lid is provided, in particular for the lid of a storage compartment in a motor vehicle, with a spring-loaded closing cam which is arranged in a projecting manner at the free end of the lid and which, when the lid is closed, engages releasably in a latching recess of a latching recess housing arranged on the storage compartment, with a transducer element which is likewise arranged on the storage compartment and can be triggered via a central locking system with a view to locking and unlocking, and with a reversing linkage, mounted at one end on the transducer element and at the other end on the latching recess housing, for actuating a closing hook which can be pivoted into a latching opening of the closing cam.

Abstract: A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A presently preferred latch comprises a housing, a pawl received within the housing and an actuating member associated with and slidable relative to the housing for displacing the pawl from an extended position to a retracted position. These components are assembled together without the use of separate fasteners or adhesives, thereby simplifying assembly and allowing for interchangeability of parts to meet varying latch requirements. The latches are preferably manufactured from corrosion resistant materials such as plastics, composites and corrosion resistant metals, and are highly suitable for use in automotive, recreational vehicle and marine applications.

Abstract: A lock assembly is formed from a two-piece plastic unit that is held together and to the compartment door by a planar lanced metal spring. The latch projection is ramped relative to the latch retainer slot within the compartment door to cause the latch piece to become jammed within the retainer slot in the event the door is subjected to severe internally-generated gas pressures.

Abstract: A locking device for doors, intended for connection between the dead-bolt of the door and the drive means of the lock including a hinged arm which is connected to the dead-bolt or its extension, a wheel or pin being arranged at the other end of the hinged arm and designed to tumble into a recess formed in a pivotable cam-disc, or to be disengaged from this recess by means of a link mechanism, whereupon in the latter position, the cam-disc is arranged to block the dead-bolt in the first position and upon tumbling into the recess to release it, the dead-bolt has an inclined surface designed so that upon pressure against the door, the bevelled surface assists in opening of the door.

Abstract: A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A preferred latch comprises a gripable base member having a spring member mounted thereon, a locking member rotatably mounted on the spring member and a rotatable lock plug mounted in the spring member and contacting the locking member. These components are assembled together without the use of separate fasteners or adhesives, thereby simplifying assembly and allowing for interchangeability of parts to meet varying latch requirements. The latches are preferably manufactured from corrosion resistant materials such as plastics, composites and corrosion resistant metals, and are highly suitable for use in automotive, recreational vehicle and marine applications.

Abstract: A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A preferred latch comprises a gripable base member having a spring member mounted thereon, a locking member rotatably mounted on the spring member and a rotatable lock plug mounted in the spring member and contacting the locking member. These components are assembled together without the use of separate fasteners or adhesives, thereby simplifying assembly and allowing for interchangeability of parts to meet varying latch requirements. The latches are preferably manufactured from corrosion resistant materials such as plastics, composites and corrosion resistant metals, and are highly suitable for use in automotive, recreational vehicle and marine applications.

Abstract: A latch having a housing, a bolt sliding in the housing along a first axis, a handle pivoting in the housing along a second axis parallel to the first axis between a handle latched position and a handle unlatching position, a drive mechanism for driving the bolt by the handle between a bolt latched position and a bolt unlatching position, a first spring for urging the handle to the handle latched position and a second spring for urging the bolt to the bolt latched position, a cam plate sliding in the housing along a third axis perpendicular to the first and second axes, a first drive carried by the handle for translating the cam plate along the third axis, and a drive link mounted in the housing for pivoting about a fourth axis perpendicular to the first, second and third axes, the drive link including a drive pin for engagement by the cam plate in driving relation and for engaging the bolt along the cam surface of the bolt in driving relation.

Abstract: A window stop (10) for limiting movement of a sliding window along a predetermined path of window movement is provided. The window stop (10) has a housing (12) having a cavity (20) wherein the housing (12) is adapted to be positioned adjacent the path of window movement. A bolt (14), operatively associated with the cavity (20), is moveable between a first position (BP1) within the housing (12) and thereby out of the path of window movement, and a second position (BP2) extending out of the housing (12) into the path of the window movement whereby the window is able to contact the bolt (14). An actuator (16) is pivotally supported by the bolt (14) between a first position (AP1) locking the bolt (14) within the housing (12) and a second position (AP2) allowing the bolt (14) to extend to its second position (BP2). A spring (58) biases the bolt toward its second position. The bolt (14) receives forces from the window contacting the extended bolt (14).

Abstract: A child-proof safety latch for a swimming pool safety barrier, or other stretched-panel fence, includes a threaded rod having an expandable nut, such as a toggle-wing nut, that can move to and fro along the rod between a movable stop and a fixed stop adjacent an end of the rod that is distal from a first fence pole to which the rod is permanently affixed. To fasten two adjacent fence panels together, an operator collapses the expandable nut and inserts it through an eyelet attached to a second fence pole. The operator then expands the nut so as to capture the eyelet and turns the expandable nut so as to draw the two poles together.

Abstract: A motor driven locking mechanism including a door hingably coupled to a door frame at a first side edge thereof, the door having a horizontally orientated channel with a first open end situated on a second side edge of the door opposite the first side edge and a second closed end and a door knob rotatably coupled to the door about an axis which extends above and perpendicular to the channel; a first locking mechanism including a locking rod for slidably inserting within the channel, a strip gear longitudinally situated on a top edge of the locking rod, and a motor located adjacent the closed end of the channel having a rotor extending therefrom with a bevel gear coupled thereto, the bevel gear in threaded engagement with the strip gear for situating the locking rod in an extended orientation with the locking rod engaged with the door frame upon the receipt of a lock signal and a retracted orientation with the locking rod residing only within the channel upon the receipt of an unlock signal; and actuation mech

Abstract: A safety clasp for locking a cover to a container includes a rocker and an axle pivotally connecting the rocker to the cover. A slider is positioned between the axle and the cover and is slidable along the cover in a direction generally perpendicular to the axle between a locked position wherein a portion of the slider interfits with the container and an unlocked position wherein the slider portion is disengaged from the container. The slider has a projection extending away from the cover and the rocker is moveable about the axle between a first position wherein a portion of the rocker engages behind the projection when the slider is in its locked position thereby preventing the slider from moving to its unlocked position. The rocker is also moveable to a second position wherein the rocker portion clears the projection thereby allowing the slider to be moved from its locked position to its unlocked position. A spring is located between the rocker and the slider for biasing the rocker to its first position.

Abstract: The invention is a motorized linkage for operating a door strike. A six volt power source, controlled by a security code, rotates a small electric motor when a proper security code is given. The motor rotates a shaft which engages a coil spring. This moves a locking cam. When a catch on the locking cam separates from the locking lever catch, the latch bolt keeper may be manipulated by a user.

Abstract: The invention relates to a mechanism for locking a door (2) or door leaf to the floor by means of a vertically displaceable latch (3) mounted to the bottom of the inner surface (6) of the door (2) or door leaf In order to prevent burglars from unlocking the latch (3) from outside, the latch (3) is fixed to a slide block (16) bearing a mounting pin (20) for an operating handle projecting inwardly, the mounting pin (20) being pivotable in a limited range about a horizontal first pivot axle arranged parallel to the door or door leaf; the slide block (16) further bearing an bell crank lever (26) pivotable about a horizontal pivot axle (24) disposed perpendicular to the door (2) or door leaf; a first arm of the bell crank lever (26) extending beyond the mounting pin (20) and being biased downwardly by a spring (30), while the other arm extends downward and is provided with a hook oriented laterally for releasably engaging a latch recess in the housing (14).

Abstract: A door hold-open latch and dual release mechanism includes a first latch for maintaining the door in its closed position and a second latch for maintaining the door in its open position. A first latch release is mounted on the door in a position accessible to an operator located in the cab for releasing the first latch. A second latch release is mounted on the door in a position accessible to an operator located in the cab for releasing the second latch. A third latch release is mounted on the door in a position accessible to an operator located on the ground for also releasing the second latch. The operator can actuate the second latch from either the cab using the second latch release or from ground level using the third latch release. Alternately, the third latch release can also release the first latch, and the operator can actuate the first latch using the third latch release.

Abstract: A ratcheting latch mechanism for holding the vertical rods of a door exit device in the retracted position includes a chassis and a latch rod, with a plurality of ratchet notches formed therein, slidingly held by the chassis for motion between an extended and a retracted position. One end of the latch rod engages a socket in the door frame, the other is connected to a vertical rod extending from the exit device. A pawl is mounted on a release mechanism and engages the ratchet notches whenever the door is open to prevent the latch rod from moving back towards the extended position and damaging flooring or ceiling material.

Abstract: A locking system (20) allows a plurality of vehicle service doors (22) to be locked and unlocked by operating a single electrical switch in a suitable location such as the vehicle cab. The locking system (20) includes a lock (24) having a bolt (26) and a blocking cam (40). An actuator (144) moves the acm (40) between locked and unlocked positions via an extension member (46). The actuator (144) includes an actuating member in the form of a combined piston (148) and rack (150). A spring (170) urges rack (150) to remain in either of two selected positions.

Abstract: A locking system for selectively locking two frame members of a window or door to prevent sliding movement of one frame relative to the other. The locking system includes a sleeve and first and second pivotably connected bolt members. A spring urges the bolt members to a position where relative sliding movement between the two frame members is prevented. One of the bolt members can be pivoted and then moved along a line which is perpendicular to the other bolt member in a manner such that the bolt is retained in a retracted position.

Abstract: A surface mounted slide bolt including a base, a strike, a bolt and a plug for locking the bolt in either extended or retracted positions and for disposing the bolt in position relative to the base for assembly and disassembly. The bolt includes tongues receivable in notches of L-shaped flanges of the base.

Abstract: A method is for selectively locking two frame members of a window or door to prevent sliding movement of one frame relative to the other. The method involves providing an aperture in one frame, securing a sleeve to the other frame in alignment with the aperture, inserting a bolt through the sleeve and into the aperture. The bolt includes two lengths which are pivotably connected together. When the bolt is in retracted position, one portion of the bolt can be pivoted relative to the other portion of the bolt and then moved along a line perpendicular to the axis of the first portion of the bolt.

Abstract: A door lock mechanism for a pair of doors oppositely hung on the frame of a cabinet. The door lock mechanism comprises a pair of studs, one to be attached respectively to each door, a lock body to be attached to the frame, and a latch assembly carried on the lock body and provided by a pair of latch members and a spring urging the latch members to their latching positions. Each of the studs has a camming head at its free end which cooperates with a portion of the lock body to guide the stud into a cavity provided in the lock body as the respective door is closed. Each stud is also provided with a recess adapted to receive a detent end portion of one of the latch members to releasably retain the respective door in its closed position.

Abstract: A multi-controlled security lock includes a slide which can be moved back and forth with respect to frame by at least one of two control devices, such as, a key control device or a remote electric control device. A carriage mounted on lock bolts is movable back and forth with respect to the frame. An irreversible actuating device is located between the carriage and the slide for permitting a movement of the carriage between an open position and a locked position in response to a movement of the slide and for preventing a movement of the carriage between the locked position and the open position in response to a force exerted on the carriage.

Abstract: A plastic door lock comprises opposed flat inner and outer cover plates (1,1') each recessed to house slidable drag units (3,3'), and a core unit (2) located between the cover plates (1,1') housing a latch unit (4) which, on sliding movement of the drag units (3,3'), can be moved between a closed position and an open position. A limit switch (25) housed in the inner cover plate (1') can be pivoted between an unlocked position permitting movement of both the inner and outer drag units (3,3') to actuate the latch unit (4), and a locked position preventing movement of the outer drag unit (3) but being such that, on movement of the inner drag unit (3'), the limit switch (25) is returned to its unlocked position to enable actuation of the latch unit (4) from inside the door. The components of the lock are moulded from a plastics material.

Abstract: A rod casing for activating vertically arranged latch bolts, the casing and latch bolts arranged in an active stile of a door and engageable to a door frame. The rod casing provides a vertically slidable actuator cam engageable by both a lock/unlock actuator and a delatch or dogging actuator. The lock/unlock actuator and the delatch actuator are rotatably mounted upon a spindle piece which itself is rotatable by a user such as by a key-activated lock cylinder. The lock/unlock actuator when rotated slidingly abuts the actuator cam and drives the actuator cam vertically upward to cause unlatching of the latch bolts. The delatch actuator, upon rotation of the spindle piece in an opposite direction underlies the actuator cam and dogs the actuator cam in its vertically risen position. To deactivate the delatch actuator, the lock/unlock actuator can be rotated to interfere and displace the delatch actuator to release the actuator cam from the dogging position.

Abstract: A portable computer includes a base unit for mounting a keyboard and a display unit. The base unit includes a bottom plate. A receiving portion in which a hard-disk drive device (HDD) is detachably mounted is formed in the bottom plate. The HDD is formed into a unit as a module and has a first connector. The receiving portion of the base unit includes a second connector to be electrically connected to the first connector, a lock mechanism which is engaged with the HDD to confine the HDD in the receiving portion, and a switch which is operated upon a lock operation of the lock mechanism so as to allow current supply to the HDD. The HDD is fixed to the receiving portion by a screw. The screw is engaged with the lock mechanism to hold the lock mechanism in a state wherein the HDD is locked to the receiving portion.

Abstract: A deadlatch assembly of the type that provides remote operation to control traffic during and after business hours in a building. The deadlatch assembly includes a solenoid actuator for moving the deadlatch cam to its unblocking position when the auxiliary bolt is retracted and the door closed. A ramp in the strike plate and a beveled latch bolt facilitates opening of the door without the need for an electric strike.

Abstract: A lock assembly for a window assembly. The window assembly has a window sash installed for reciprocal sliding movement within a window frame. The window sash includes a header frame member. The lock assembly comprises a housing and a finger disposed within the housing. The finger is adapted for sliding movement between an extended position wherein the finger engages the window frame and a retracted position wherein the finger avoids engagement with the window frame. The lock assembly further includes a lock button and a socket for receiving the lock button.The lock button includes a cap and a generally hollow cylindrical body depending from the cap. The cylindrical body includes first and second radially opposing, projecting tongues. Each of the tongues is in spaced relationship with the cap to form respective first and second grooves. The lock button further includes a locking tab depending from one of the tongues for selective engagement with the finger to selectively prevent retraction of the finger.

Abstract: The present invention provides for a collapsible table comprising a table top, and first and second legs having a scissors action connection to one another. The first leg is pivotally secured at a first location to the table top, and the second leg is pivotally and removably secured by releasable securing means at a second location to the table top spaced from the first location. Releasable locking means are provided for releasably securing the securing means. In a further aspect of the invention, the locking means is provided by a locking lever having a securing means receiving means for releasably securing the securing means in the operating position.

Abstract: A housing mounted to the frame of a panic exit device confines a translatable limb, and a pivotable arm. The limb has a lobe which obstructs the arm to prevent its pivoting and, as a consequence, the arm blocks the latchbolt linkage of the device to prevent unlatching. A rod joined to a time-delayed-operative solenoid is coupled to the limb for displacing the limb from arm-pivoting obstruction, to allow the arm to unblock the latchbolt linkage, whereby the latchbolt can unlatch following the time delayed deenergization of the solenoid. Under normal conditions, the solenoid is energized to prohibit immediate unlatching.

Abstract: A door lock for preventing unauthorized ingress and solely actuable from the inside of a room. The lock includes a lock bar, pivotally anchored to the outer edge of the door, and a jamb plate, anchored to the adjacent jamb and having an elongated vertical aperture for door locking engagement by the lock bar free end portion when the door is closed. A stem is slidably mounted on the lock bar to take a blocking position protruding beyond the free end portion of the lock bar for releasably extending through the jamb plate aperture. When the stem is engaged into the jamb plate aperture, the lock bar is prevented from pivoting because the stem has no clearance to do so within the aperture. Thus, a person outside the room could not release the lock bar by upward pivotal thereof, for instance by inserting a blade through the vertical air gap between the door outer edge and the jamb plate, underneath the lock bar, and then lifting same.

Abstract: An automatic dead bolt lock has a main bolt member and an auxiliary bolt member supported on the main bolt member so as to be reciprocally movable relative thereto. Both the main and auxiliary bolt members will be dead locked when the lock is in the dead locked condition. In the armed condition the main bolt member is partly extended and the auxiliary bolt member extends from the end of the main bolt member.

Abstract: A multi-lock latch for gates and other closures which utilizes one or more padlocks for security and includes a drum rotatably attached to the gate and having a peripheral flange provided with multiple, spaced padlock openings for receiving the respective padlock shackles. A horizontally-oriented locking bar is slidably attached to the gate, with one end of the locking bar positioned in alignment with the respective shackle openings in the drum flange as the drum is rotated, and the opposite, or locking end of the locking bar aligned with a plate opening provided in a gate post plate mounted on a gate post securing the gate. When the padlocks are attached to the drum flange by insertion of the respective shackles through corresponding shackle openings in the drum flange, the locking bar is disposed such that the locking end is inserted in the plate opening located in the gate post plate and the gate cannot be opened.

Abstract: A selectively self-locking deadbolt latch for incorporation into doors or the like. The latch can be preliminarily "armed" such that as the door closes the bolt will extend into the opening of the door strike. The latch mechanism includes a cam lever having a shoulder which loads against the bolt extension. A compression spring within the bolt urges the bolt towards the locked position once the cam lever is released from the bolt extension by closing the door. The temporary retraction of the bolt as it engages the door strike releases the bolt and cam lever. A beam spring acting on the cam lever urges the cam lever forward towards the locked position. The bolt is initially armed by turning the inner turn lever slightly or by depressing the end of the bolt which includes chamfered edges to allow the bolt to move past the door strike for release.

Abstract: An animal gate latch mechanism having upper and lower latch units movable successively and alternatively between gate open and gate latching positions therefor by a linkage system including a single actuating arm. From a gate open position of both latch units, movement of the actuating arm in one direction will independently move the latch units to the gate latching positions therefor. An intermediate latched condition of the gate is thus provided which can quickly and easily be effected by an operator on horseback. With both latch units in the latched position therefor, the gate is securely latched at two spaced-apart locations to prevent twisting of the gate by a confined animal and its possible escape therethrough.

Abstract: A doorleaf lock, comprising a lock mechanism for controlling a locking bolt (12) and a catch bolt (15), which is controlled by means of a door handle. The catch bolt, in a neutral position defined by a spring means (21), extends with a non-circular bolt head (17) through a non-circular opening (16) in the lock front wall (11). The catch bolt is displaceable into the lock, against the action of the spring means (21), during manipulation of the handle. The catch bolt (15) abuts a catch means (22) in said neutral position, said catch means being accessible via a second opening (28) in the front wall (11). The catch means is displaceable from its catch position by manipulation from the outside via the second opening (28). Further, after said manipulation of the catch means (22), the catch bolt is displaceable with its bolt head (17) out of the non-circular opening (16) to the outside of the lock, enabling a turning of the catch bolt around its longitudinal axis.

Abstract: A lock assembly (10) for mounting on a door includes a dead-locking element (31), movement of which is controlled by an electrically operated device (35) for mounting on the door frame and magnetically coupled to a linkage system (32,33) whereby the dead-locking element (31) is moved. The linkage system carries a permanent magnet (34) which interacts with the core (37) of the solenoid when the door is in its closed position, and when the solenoid is energised it repels the permanent magnet (34) thereby operating the linkage system to move the dead-locking element (31) away from its operative position, thereby allowing a locking member (12) to be withdrawn.

Abstract: A door lock structure includes a frame and a latch bolt carried by the frame for movement between retracted and advanced positions relative to a jamb. The bolt in its retracted position allows the door to open and when its in its advanced position blocks the closed door from opening. A first heat-fusible spring carried by the frame urges the bolt toward the advanced position. A lever pivotally carried by the bolt pivots between a first bolt blocking position and a second bolt freeing position. The lever has a second heat fusible spring carried by the bolt and acting on the lever for urging the lever toward the first bolt blocking position. The frame carries an actuator for pivoting the lever into the second position allowing movement of the bolt toward the retracted position. The lever also has a counterweight on the lever for keeping the lever in the first position to block retraction of the bolt in the event that the first and second springs melt.

Abstract: A security container including a housing and a drawer disposed therein for movement from a recessed position, in which any contents of the drawer are inaccessible, to an extended position in which the contents of the drawer are accessible. A latch assembly carried by the housing and drawer is operable externally thereof to release the drawer for movement from the recessed to the extended position. A blocking device, carried by the housing, prevents operation of the latch assembly unless the blocking device is properly positioned.

Abstract: A door lock comprising a block having a slot into which a locking arm moves when the door is shut. A pivot arm is resiliently biassed to extend into the slot and, a separate locking element is resiliently biassed to slidably extend into the slot. While a rotatable element is resiliently biassed to rotate clockwise to bring a roller directly under the locking element, the pivot arm abuts the roller and is itself resiliently biassed to prevent the roller from reaching a position fully under the locking element. Entry of the locking arm into the slot depresses the pivot arm forcing the locking element downward to permit full entry of the locking arm into the slot. As the locking element descends, the roller is urged counter-clockwise and the locking element engages a channel in the locking arm. The depressed pivot arm will not abut the roller at this point thereby allowing it to reach a position fully under the locking element which locks the locking element in the locking arm channel.

Abstract: A locking mechanism to secure a coin operated vending machine includes an elongate locking bar insertable into a housing of the vending machine to secure closed a door hingedly mounted to the housing. A pair of metal loops integral with the door, and a pair of cover plates integral with the housing, are aligned to simultaneously contain the locking bar when the door is closed. A key-operated lock cylinder, mounted in recessed fashion inside the housing, supports a latch for pivotal movement toward and away from a latching position, wherein the latch enters a slot formed in the locking bar to keep the locking bar in its locking position. A reinforcing plate, with a keyway and a larger opening to permit insertion of the locking bar, protects the locking mechanism against tampering to discourage unauthorized entry into the vending machine.

Abstract: A locking apparatus for a pickup camper shell which includes a metallic plate member having a generally right-angularly disposed integrally formed pivot portion for pivotally attaching thereto a latch arm, the latch arm having a latch portion defining an opening for captively receiving therein the locking bar of a camper shell locking mechanism, with a transversely bent portion of the latch arm being configured for grasping and pivoting of the latch arm. A coacting protrusion and depression are formed on abutting surfaces of the pivot portion and latch arm for retaining the parts in an open position to prevent inadvertent locking of the apparatus due to movement of the vehicle. The plate member is secured to a portion of the camper shell in proximity to the locking bars, with the opening of the latch arm aligned for capture and retention of the locking bar. The opening has an angularly disposed outer edge to force the latch arm down on attempted intrusion by rotation of the door handle from the exterior.

Abstract: A security bolt including a housing and a bolt rod slidably mounted on that housing for relative movement between operative and inoperative positions. The rod is cylindrical and has a section of reduced diameter between its ends so as to form two opposed shoulders. Key operated locking mechanism, having a rotatable barrel, is attached to the housing and a detent member is rotatably mounted on an end portion of that barrel. The detent member is rotatable to a position at which it engages one of the rod shoulders and thereby prevents movement of the rod out of the operative position. Rotation of the detent member is caused by rotation of the barrel, but a lost motion connection enables the barrel to rotate to a limited extent in either direction without causing corresponding rotation of the detent member. The locking mechanism can be removed from the housing through a rear side and releasable securing means controls that removal.

Abstract: A deadbolt lock mechanism for a door comprises an elongated bolt, means for guiding the bolt in the door between extended and retracted positions, a spindle unit having a cam for selectively engaging a transverse arcuate depression in the bolt for securing the bolt in the extended position, and a handle for moving the bolt between the extended and retracted positions. The bolt can be six inches long and capable of a stroke of two inches for engaging a stud supporting a frame for the door. The spindle unit can include a lock cylinder of conventional construction at one side of the door, and a thumbturn at the opposite side of the door, and other similar combinations. The mechanism can replace existing hardware at a standard backset distance of two and three eighths inches.

Abstract: The panel lock comprises an elongated housing having resilient wedging means at each end to secure the panel lock in place in a recess in a door, panel or like member. Formed integrally with the elongated housing are a lock housing with a cylindrical opening, a central recessed portion, and a bolt housing. A lock is rotatably secured in the opening in the lock housing. A bolt is slidably positioned in the bolt housing. A spring is operative between the bolt and the bolt housing to bias the bolt outwardly from the bolt housing into locking position. An actuator is slidably secured to the elongated housing and is adapted to engage the bolt. When the actuator is moved in one direction, the bolt is biased outwardly to a latching position by the spring. Movement of the actuator in an opposite direction will move the bolt against the bias of the spring to a release position. Cam means are secured to the lock and are rotatable therewith to lock or to release the actuator.

Abstract: A lockable window latch for double hung windows which pivots for cleaning includes an outer shell, a latching member which is slidable therein and a locking member which is rotatably received in the latching member and projects through an opening in the front wall of the shell. The locking element has an elongated control portion or handle which, when aligned transverse to the length of the latch permits latching and unlatching. When the handle is turned 90.degree. so as to be aligned with the length of the latch, one of its ends abuts against an internal wall surface of the shell thereby preventing unlatching.

Abstract: A security lock comprising a latch positioned at the edge of a door which is actuated to selectively lock or unlock the door. The security lock includes an optional key-actuated dead bolt which can provide additional security when needed. A mechanism for locking or unlocking the latch comprises a hand-actuated knob positioned on the inside of the door so that when the dead bolt is not in use, the latch mechanism may still be locked or unlocked simply by rotating the knob between two positions. The mechanism for locking the latch is disengaged when the latch is in the locked position. If the latch is in the locked position when the door is opened, when the door is closed the latch is automatically unlocked to prevent a person from accidentally being locked out.

Abstract: A locking device including a housing adapted for mounting in one part of an enclosure and defining an engagement surface means; a bolt retained by the housing and adapted for reciprocating movement therein between open and latched positions, the bolt comprising a latch portion adapted when in the latched position to engage another part of the enclosure movable relative to the one part thereof; and a key operated cylinder lock retained by and movable with the bolt during reciprocating movement thereof, the lock being rotatable between locked and unlocked positions. Also included is a locking member retained by and movable both reciprocally and rotationally with the lock and arranged to be engaged with the engagement surface means and prevent reciprocating movement of the bolt with the lock in its locked position; and to be disengaged from the engagement surface means to allow reciprocating movement of the bolt with the lock in its unlocked position.