Abstract: A removeable window control device in the nature of a vent stop including a housing having a peripheral flange defining an opening, at least one channel, and a pair of opposingly oriented sockets, a bolt including at least one leg, wherein the leg further includes a protuberance and a tab, a cover including a lateral side of substantially similar shape and size of a lateral side of the housing, wherein the cover further includes a pair of opposingly oriented pegs and at least one channel, and a resilient member engaging a conduit defined in the bolt and a back side of the housing to urge the bolt along the channels formed in the housing and cover towards the opening defined by the peripheral flange of the housing. The vent stop is preferably inserted into a frame of a window.

Abstract: A device for placing in a sliding door or sliding window frame that adds additional security to prevent a sliding door or sliding window from being opened. The device is a secure locking device which comprises of a main bar and a lever bar that are connected to each other such that lever bar may pivot where it is connected to the main bar. The main bar is adjustable such that a length may be adjusted to allow the secure locking device to fit within varied sizes of sliding door/window frames. The secure locking device is also comprised of a locking mechanism that is controlled by a lever actuator and a lock button which are configured onto the main bar. The secure locking device is easily accessible by a user to lock and unlock in order to secure and unsecure the sliding door. The secure locking device is easy to position in a track of the sliding panel and does not require any need to secure into place.

Abstract: A gate holding device for holding an agricultural gate (1) during installation is disclosed. The device (7, 57, 207) takes the form of an elongate attachment member defining a first axis and having a first hinge member (20, 70, 270) connected thereto adjacent a lower end of said attachment member, an elongate foot piece (8, 58, 208) defining a second axis substantially perpendicular to the first axis and having a second hinge member (21, 71, 121) connected to the foot piece intermediate the ends thereof and perpendicular to the second axis, the first and second hinge members being connected together to permit rotation of the foot piece relative to said attachment member between an initial position where the foot piece is substantially parallel to the gate and a final position in which the foot piece is substantially perpendicular to the gate. Preferably a pair of such devices is used. A method is also disclosed.

Abstract: A door stopping system comprises a mounting member, a supporting member, a leg member, a spring member, a sleeve member, a first pin member and a second pin member. The mounting member is pivotally connected with the supporting member via the first pin member, the leg member is pivotally connected with the supporting member via the second pin member, the mounting member and the leg member are oppositely located to each other along the supporting member, the spring member is biased in between the supporting member and the leg member, and the sleeve member is slidably sleeved on the supporting member. The mounting member is configured to be removably attached to a door. The leg member is configured to contact a ground.

Abstract: A door swing control device comprises a bracket affixed to a door, a pivoting element pivotably affixed to the bracket, and a swinging catch mechanism mounted directly or indirectly to the structure. The pivoting element comprises a finger extending therefrom and is engaged with the bracket to limit a range of movement of the pivoting element relative to the bracket. The finger is engageable with the swinging catch mechanism to limit a range of movement of the pivoting element relative to the swinging catch mechanism and thereby selectively limiting a range of movement of the bracket relative to the swinging catch mechanism. When the finger of the pivoting element is engaged with the swinging catch mechanism, the door is held in the first open position. When the finger of the pivoting element is disengaged from the swinging catch mechanism, the door can swing between the first and second open positions.

Abstract: A cab for a work machine includes a cab body that is formed with a doorway, a door that is rotatably supported on the cab body so as to open and close the doorway, an actuator that generates a driving force to open and close the door, a rod that is attached to the door and rotatable relative to the door, and a sensor that is attached to the door separately from the rod. The sensor detects the motion of the rod relative to the door by detecting the motion of the rod relative to the sensor.

Abstract: Embodiments discussed herein enable an authorized user of a door security device to secure a door against entry, but also enable that authorized user to provide access to others, without having to provide a physical key. Embodiments discussed herein further allow an authorized user to operate the door security device remotely, such as through a wired or wireless network, or through any other network as described herein, as known at the time of filing, and/or as developed after the time of filing.

Abstract: A window vent stop is disclosed having a housing with a peripheral flange defining an opening, and a body depending from the peripheral flange. A stop block is mounted within the body of the housing for movement between an open position wherein a portion of the stop block protrudes above the peripheral flange and a closed position. A spring leg is located on a bottom end of the housing and flexes toward the housing when under compression, providing compressive force along a line parallel to a longitudinal axis of the housing when the window vent stop is inserted into an opening in a window sash. By applying force to further compress the spring leg, the vent stop can be readily removed from the window sash without damage.

Abstract: A door stop for a door includes a clamp that is securable over a first side edge of a door. The clamp has a guide. An arm has a receiving portion for receiving the guide to permit movement of the arm on the clamp between an open position and a closed position. A spring mechanism is operably coupled to the clamp and the arm, and urges the arm on the guide of the clamp toward the closed position. In the closed position, the arm prevents the door from engaging with a respective door jamb.

Abstract: Provided is a vehicle front body structure including a port device (30) received in a housing (36) and mounted to a vehicle body under a front hood (7). A lid (58) is provided on the housing to selectively close a port opening (21) in the front hood, and the lid includes a lid plate (59) including a light transmitting base material, and a reinforcing member (60) attached to an inner surface of the lid plate, the reinforcing member extending along an intermediate part of the lid plate with respect to a fore and aft direction of the vehicle body.

Abstract: A window vent stop for use in a sliding sash window or a sliding sash door assembly. The vent stop includes a housing and a tumbler. The housing is adapted to be disposed in a recess in a rail or stile of the window/door. This housing includes a cavity with a bottom wall therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of the sliding member, and a retracted position, to allow movement of the sliding member. The tumbler is formed with a protruding spring member for selectively biasing the tumbler. The housing has one or more flexible members extending from each of its end walls to secure the housing within the opening in the sash member.

Abstract: An apparatus for use in construction to assist in the support of suspended concrete during at least a curing phase of the concrete. The apparatus comprises a base member and a support member coupled to the base member and moveable relative to the base member between a first relative position (“first position”) and a second relative position (“second position”). A biasing mechanism is operatively coupled to the support member to bias the support member toward the second position. In use, the support member is positioned to engage and support the suspended concrete and move from the first position toward the second position as the concrete cures and contracts, to maintain substantially continuous support to the concrete during at least a substantial period of the curing phase. In the preferred embodiment the apparatus is configured for use with a support prop.

Abstract: An adjustable caddy bracket includes a cam level handle, an interior of the cam level handle comprising a pair of cam level handle projections, a circular front plate, the circular front plate including front plate apertures to receive the pair of cam level handle projections, and a circular back plate, the circular back plate including a pair of back plate projections, the pair of back plate projections configured to receive and secure the pair of cam level handle projections through the front plate apertures.

Abstract: A gate hold open device is configured to hold the gate open at any point along the swing of the gate. A mounting bracket hingedly secures one end of a prop leg to the gate. A sliding handle hangs from the gate to secure the prop leg to the gate when the gate is in a closed position and the device is disengaged or stored. The sliding handle is lifted from the gate such that the prop leg can pivot or rotate about the mounting bracket and fall to the ground. The gate can then be flung open, and the prop leg will drag along the ground until the gate begins to swing back toward the closed position. The prop leg jams into the ground, holding the gate open until a user lifts the prop leg and hangs the sliding handle back on the gate.

Abstract: Embodiments discussed herein enable an authorized user of a door security device to secure a door against entry, but also enable that authorized user to provide access to others, without having to provide a physical key. Embodiments discussed herein further allow an authorized user to operate the door security device remotely, such as through a wired or wireless network, or through any other network as described herein, as known at the time of filing, and/or as developed after the time of filing.

Abstract: A window vent stop for use in a sliding sash window assembly or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in a non-movable sash member. A tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of a sliding member and a retracted position to allow movement of the sliding member. Also within the housing is a spring for biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in the non-movable sash member.

Abstract: A door brace (10) comprising: an engagement member (12) comprising a bottom flange (14) comprising one face comprising a textured surface (14a) to engage with a door (34); an angled leg (20) comprising a first section (22) hingedly connected at one end to the wall and a second section (23) extending from the first section at a first angle, the leg being movable between a stowed position and an extended position in which the first section makes a second angle, larger than the first angle, to the wall; an engagement foot (26) pivotably mounted on a mounting element (24) having an adjustable length; and a hinge stop configured to prevent the leg moving beyond a maximum extended position. Wherein, in an extended position, the second section of the leg extends at a third angle to the wall equal to the difference between the second and first angles and the engagement foot causes a clamping force to be applied to the door.

Abstract: A work vehicle includes a tank, an exterior cover, an openable cover, and a hinge member. The tank has a replenishing port. The exterior cover covers the tank and includes an opening section in a portion facing the replenishing port. The openable cover covers the opening section. The hinge member is provided between a lower end of the openable cover and the exterior cover and allows rotation of the openable cover. A recessed section is formed on an upper part of the hinge member when the openable cover is opened.

Abstract: The invention refers to a locking unit for locking the movement of a piston drivable by a drive. The locking unit comprises a solenoid and a catch assembly. The catch assembly has a spring section and a latch section, wherein the elastic spring section angles the catch assembly against an armature rod. In a locking position, the latch section blocks the movement of the piston. In an unlocking position, the movement of the piston is released. The latch section is equipped at least with a reinforcement acting in the direction of movement of the piston.

Abstract: A door barricade includes a base member and a securing mechanism. The base member has a size that permits it to be positioned under a door, with a first upwardly extending portion positioned on the base member and a second upwardly extending portion positioned on the base member. The first and second upwardly extending portions are spaced a distance from one another that is greater than or equal to a width of a door. The securing mechanism is coupled to the base member for mating with a floor. The base member and the securing member together serve to barricade a door such that the door will not move even upon the application of significant force when the securing mechanism is fixedly coupled to a floor.

Abstract: An access gate provides access to cross a wall and may comprise at least one hinged wall portion configured to be moved between an open and a closed position. In the closed position, the hinged wall portion acts as a barrier between a first and a second side of the wall. In the open position, the hinged wall portion allows passage between the first and second sides of the wall. The access gate may comprise a crossing surface to allow passage between the first and second sides of the wall; and at least one hinged surface door configured to be moved between a closed and an open position. In the closed position, the surface door prevents access to the crossing surface and provides a walkable/drivable surface. In the open position, the surface door provides access to the crossing surface.

Abstract: A fully functioning, pivoting vent stop for sliding windows has only two parts, a housing and a pivoting tumbler, both formed of injection molded plastic material. The tumbler is pivotally mounted in the housing and has integral detent elements cooperating with detent elements on the housing walls to position the tumbler in recessed or extended limit positions. The cooperating detent elements also provide an over-centering spring action as the tumbler is actuated between its limit positions. Assembly of the two-part device is achieved in a highly simplified and economical manner by configuring an internal cavity in the housing with inclined slots in the internal side walls of the housing. This enables the tumbler to be resiliently pressed into the cavity, temporarily displacing the housing side walls outwardly, until the cooperating pivot and detent elements are fully engaged.

Abstract: Apparatuses and methods for securing a door. The apparatuses include a door clamp having a base with a first groove and a second groove. A first stop and a second stop are movably attached to the base. The first stop has a first position in relation to the base wherein the first groove is exposed and has a second position in relation to the base wherein the first groove is covered by the first stop. The second stop has a first position in relation to the base wherein the second groove is exposed and has a second position in relation to the base wherein the second groove is covered by the second stop.

Abstract: A nacelle includes a front air inlet section, a mid-section and a rear section formed from two half-shells connected each other by a locking device actuated by a control handle equipped with a secondary locking system. The secondary locking system includes a blocking member to block the control handle in a locking position. In particular, the blocking member has a rod accommodated in the control handle and prolonged by a head. The blocking member and a region of the internal face of one of two cowls of the middle section come into abutment one against the other in order to prevent the closure of cowl if the control handle is not situated in its locking position.

Abstract: An actuator arrangement is disclosed herein for an electronically actuatable door latch that controls a door of a vehicle. The actuator arrangement includes, but is not limited to, an actuating member that is connected to the door and that is operatively coupled to the electronically actuatable door latch. The actuating member is configured to actuate the electronically actuatable door latch when the actuating member is pushed in an outboard direction. The actuator arrangement further includes a bracing member that is mounted to the door proximate the actuating member at a position that is inboard of the actuating member. The bracing member permits a user to brace against the bracing member when pushing the actuating member in an outboard direction.

Abstract: French doors that include a passive door and an active door are kept closed by a plate on a trim over a French door jamb having a flange at one of the sides. Holes in the plate allow it to be screwed into the trim. The flange retains the passive French door in place, but the screw in the hole over the active door can be removed to allow the plate to pivot about the remaining screw so the plate can be bent upward to allow the passive door to open under the flange.

Abstract: A first panel includes an engaging section configured to engage with an engaged section so as to allow displacement of the engaged section according to swinging of a hood between a closed position and an open position and restrict the swinging of the hood in a state where an opening section is opened. The engaging section engages with the engaged section such that the engaged section is detachable by being displaced in a predetermined first direction. The machine main body further includes an auxiliary supporting section provided in a machine room and configured to restrict, by detachably supporting the engaged section detached from the engaging section, the swinging of the hood in a state where the opening section is opened.

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

Abstract: Embodiments of a box security cover comprising a box cover and a locking assembly are disclosed. The box security cover can be positioned on a box, and the locking assembly can move between an unlocked position in which the security cover can be removed and a locked position in which braces of the locking assembly can contact interior surfaces of the box, preventing removal of the security cover from the box.

Abstract: There is a door stop including a block having a top surface and a bottom surface. The block includes an engaging perimeter and a non-engaging perimeter opposite the engaging perimeter and is disposed between the top surface and the bottom surface. The block includes a protrusion extending therefrom at a boundary region between the engaging perimeter and the non-engaging perimeter. The door stop includes a plurality of magnets disposed in an array along an exterior of the engaging perimeter. The door stop includes a recessed portion disposed about the engaging perimeter and is configured to rest about a hinge of a door.

Abstract: A method of operating a window having a sash and a window opening limit device includes moving the sash from a closed position to a limited position. When in the limited position, the window opening limit device is in a projected position, and the sash is engaged with the window opening limit device. Moving the window opening limit device to a retracted position disengages the sash and the window opening limit device. The sash may then be moved from the limited position to an open range. When the sash is returned to the closed position, the window opening limit device automatically returns to the projected position, and the sash is disengaged with the window opening limit device.

Abstract: The door knob security alarm is a door alarm that is uniquely adapted to rest upon a top half of a door knob, and upon movement of the door knob the security alarm shell fall off of the door knob, and emit an alarm upon impacting the ground. An alarm housing includes a concave portion along a bottom portion of said alarm housing, which is uniquely adapted for placement atop of a portion of a door handle or door knob. A motion sensor detects impact of the alarm housing with a ground surface, and shall generate an alarm that is audible. The security alarm includes the use of at least one speaker that emits an audible alarm. The alarm housing includes at least one switch on a top surface, which enables operation of the security alarm.

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

Abstract: A sash window restrictor (20) has a housing (22) which is to be let into a vertical frame member (10) of one sash (normally the upper, outer sash) of a window, at a position, say, 10 cm above the top rail of the lower sash when the windows are closed. A tab (24) is mounted in the housing and can be retracted into the housing or extended from the housing. A mechanism acts between the tab and the housing and allows the tab to be pressed into the housing and held in the housing for a period of time before the tab is released to allow the tab to extend. With the tab extended, the lower sash (12) can be lifted until it reaches the tab (24) but no further, so that a 10 cm gap will be opened at the bottom of the window.

Abstract: A door security system is provided which is used to prevent a door, which separates first and second spaces, from opening. The door security system includes a security apparatus which is configured to be engaged with the floor within a first space. If the door is to be opened into the first space, the security apparatus blocks the door from opening into the first space. If the door is to be opened into the second space, an attachment assembly of the door security system acts in concert with the attachment assembly to block the door from opening into the second space. The door security system further includes a release mechanism which can be manipulated from the second space to disengage the security apparatus within the first space, thereby allowing for the door to be opened into either the first or second spaces, as appropriate.

Abstract: An apparatus for opening and closing an engine hood for a construction machine is disclosed that can open an engine hood, which is mounted on an engine room of a small excavator or the like to be opened and closed by a gas spring so that an operator opens the engine hood during checking and repairing various kinds of components in the engine room, at an angle desired by an operator. The apparatus for opening and closing an engine hood includes a frame having one side fixed to an upper swing structure and the other side fixed to a cowl frame, a guide rail having a guide groove formed in a length direction and a plurality of seat portions formed to be cut so as to communicate in a downward direction with respect to the guide groove and maintaining an opening angle that is set to open the engine hood in multiple stages, and a stay rod having a free end slidably formed along the guide rail and a fixed end rotatably fixed to the engine hood.

Abstract: A vent stop to be used on windows such as double sash windows allows desired ventilation while preventing the window from fully opening for safety reasons. The vent stop includes a lever having a notch for engaging the housing top lip while the stop is in a closed position and for disengaging the top lip when the lever is to be extended for terminating sash movement. Side apertures on the housing which receive axles on the lever are sized to allow both pivotal and longitudinal movement of the lever. A spring keeper maintains a coil spring in position while the lever moves from a closed to an open posture.

Abstract: A limiter system includes a base including a pin. A rocker is rotatably and translationally coupled with the pin. The rocker includes a first end including an abutment feature, a second end including a reset feature, and a slot including first and second slot ends and a slot track therebetween. The pin is translationally and rotatably received in the slot, and the pin is translational between the first and second slot ends. The rocker is configured for positioning between a first abutting position and a second resetting position. In the first abutting position, the abutment feature extends away from the base. In the second resetting position, the reset feature extends away from the base, and the abutment feature is nearer to the base than the reset feature.

Abstract: The rear lift gate swing arm ventilation assembly is for most vehicles, domestic or foreign, equipped with rear swing out window in the rear lift gate. The assembly provides improved air circulation by allowing the rear window open at a pre-set width. The swing arm acts as an extended strike loop when attached to the factory rear window loop. The assembly comprises of a “U” shaped round metal rod and a rectangle shaped metal base. The free ends of the “U” shaped rod provide a rectangle flange with bores for bolts to pass through. The metal base comprises of two rectangle metal blocks, one block with two bores with internal threads in both ends; both blocks provide a central vertical bore with internal threads. The metal base provide two bores along the longitudinal axis, to dimension as set in factory strike loop. The brackets wrap over the factory window's strike loop and secure by the central vertical bolt.

Abstract: A remote-controlled security apparatus for a door or window (opening) including a The security bar has a first end hingeably connected to a first portion, such as a frame or jamb, of the opening and a second end sized to extend substantially across at least a portion of a width or height of the opening. The motor-driven apparatus includes a first end affixed to a second portion of the frame of the opening and a second end coupled to the security bar. The remote control directs the actuator to move the security bar between locked and unlocked positions. When locked, the security bar extends substantially across at least a portion of the width or the height of the opening. The security apparatus can securely lock a pair of sliding doors and control access remotely.

Abstract: This invention provides an easily removable locking mechanism used on single hung, double hung, sliding window and sliding doors that will lock these items at various intervals. Two mounting bases are provided and designed to be interchangeable with each end of the locking mechanism and to provide ease of removal/installation of the locking mechanism in case of emergencies. The locking mechanism is comprised of two telescoping tubes with a permanent interlocking pin to hold the telescoping tubes at various intervals.

Abstract: A hood stay apparatus for an engine room in heavy construction equipment. The hood stay apparatus can safely keep an engine hood in an open state even if an external force is abruptly generated due to vibration, wind, and the like. The hood stay apparatus can also facilitate an opening/closing operation of the engine hood.

Abstract: An improved security system to prevent unwanted entrance through a hinged barrier, such as, but not limited to a door, is provided and comprises a member associated with the barrier, whether internal or eternal to the barrier, and adapted to extend from a first length to a second length. An actuation mechanism is coupled to the member and is adapted to extend the member from the first length to the second length and to contract the member from the second length to the first length. A receptacle is provided adjacent the barrier for receiving a portion of the member when the member is extended by the actuating mechanism. A hinge assembly is provided and is disposed substantially opposite the receptacle and adjacent the barrier and is coupled to another end of the member, such that when the member is actuated to the extended position, the member, receptacle and hinge assembly form a security system to prevent unwanted entrance through the barrier.

Abstract: A Door Locking/Securing Device comprised of Two Separate Machined Steel pieces including a Bracket and a Removable Insert. The Bracket which Fits in the Clearance between the edge of the Door and Door Jamb is Secured to the Door Jamb so that projections extend into the Room into which the Door opens. The removable insert fits onto the projection of the Bracket when the door is closed preventing the Door from being opened. This forms a highly effective barrier preventing the forced opening of the Door from the exterior.

Abstract: A vent stop is installed into a window/door to limit travel therein of a sash member, and being particularly adapted to permit ease of its installation, especially into a wooden door/window. The stop incorporates multiple retention features to inhibit the stop's removal, once properly installed. The retention features include a wedge-shaped protrusion located at a distal end of the stop housing, which engages the wood of the window opening when pivotally installed therein, to secure a first end of the stop. The opposite end of the stop may be redundantly secured. A first feature for securing the opposite end may comprise one or more arcuate flanges on housing side walls, flanges being adapted to unidirectional movement so as to permit its movement relative to the window opening during installation, but thereafter deterring counter-pivotal motion that would allow removal of the vent stop. A second feature comprises a deformable spring clip.

Abstract: An actuator arrangement is disclosed herein for an electronically actuatable door latch that controls a door of a vehicle. The actuator arrangement includes, but is not limited to, an actuating member that is connected to the door and that is operatively coupled to the electronically actuatable door latch. The actuating member is configured to actuate the electronically actuatable door latch when the actuating member is pushed in an outboard direction. The actuator arrangement further includes a bracing member that is mounted to the door proximate the actuating member at a position that is inboard of the actuating member. The bracing member permits a user to brace against the bracing member when pushing the actuating member in an outboard direction.

Abstract: Double-door stop apparatus comprises a rigid elongate bar element which has a length which spans a distance between open oppositely-hinged double doors, and attachment elements on the bar element for releasably fastening the bar element to each of the doors. In use, the double doors are thus securely held stationary in an open condition. Preferably, the apparatus further comprises an awning sheet of flexible material which is extendable from the bar element.

Abstract: A device for preventing unauthorized opening of a door is disclosed comprising: a bracket for mounting against a side wall of a door; a brace connected to the bracket and having a ground engaging end and a lock end, the brace being biased into an unbraced position; and a release lever connected to the bracket and having a pedal surface and a lock surface; the device having in use a braced position in which the ground engaging end contacts a ground surface and the lock end of the brace is engaged by the lock surface of the release lever to prevent the brace from moving into the unbraced position, the release lever being biased into the braced position; the release lever being movable, by application of force against the pedal surface, into a disengaged position in which the lock surface disengages the lock end of the brace to allow the brace to move into the unbraced position.

Abstract: Apparatus for wedging a door against forced opening is operated by rotation of the interior actuation lever of a dead bolt to raise and lower a wedging leg. A bracket is attached to the door at the dead bolt and releasably attaches to a housing on which the leg is mounted for pivotal movement between the raised inoperative position and a lowered wedging position. An operator at the housing is moved downwardly by rotation of the lock lever to the open position to pull on a spring which is connected to an upper end of the leg which causes lifting of the leg to the raised position.

Abstract: A window vent stop for use in a sliding sash window assembly or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in the non-movable sash member. This housing includes a cavity with a bottom plate therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of the sliding member and a retracted position, to allow movement of the sliding member. Also within the housing is a spring for biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in a window sash when a portion of the window sash is positioned between the underside of a lip on said housing and the flexible member.