Abstract: Described is a latch assembly that can be mounted within a door structure or in an adjacent frame structure of a vehicle to secure a suicide-type car door to an adjacent door panel. The latch assembly includes first and second blocks mounted adjacent and spaced from one another. A rod is actuatable between the two blocks by a user. Locking mechanisms allow the rod to be secured in a desired position.

Abstract: A push release latch for a display device is provided according to an embodiment of the invention. The push release latch includes a slider portion adapted to slide substantially laterally within a latch receptacle of a housing with respect to an actuation axis A of the push release latch. The slider portion includes a latch projection adapted to engage and retain a display screen and at least one actuator projection that extends from the slider portion. The latch further includes a push portion adapted to travel within the latch receptacle substantially along the actuation axis A. The push portion includes at least one sloped actuation surface that engages the at least one actuator projection of the slider portion. The at least one sloped actuation surface forces the at least one latch projection and the slider portion to move substantially laterally in response to a depression force.

Abstract: A lock assembly for use with a sliding door. The lock assembly includes a non-handed miniature mortise lock having a retractable and extendable tongue able to move between a locked position and an unlocked position. The assembly includes a rotatable spindle and a slidable piece. Manipulation of the slidable piece rotates the rotatable spindle and activates the mortise lock between the locked and unlocked positions.

Abstract: A device for locking and unlocking, with a key, a cover on a frame. The rotor of the lock for this device has a cylindrical barrel mounted for rotation in the cover and being interdependent in rotation with the slide bolt and a cylindrical axle with head mounted loosely in the barrel. The device is used in the area of road works.

Abstract: A door mechanism for a transportation container having a material receiving opening extending through a surface of the transportation container is disclosed. The door mechanism includes at least one substantially rigid door element to removably cover at least a portion of the material receiving opening of the transportation container. Further, the door mechanism includes at least one latching mechanism in operable communication with the door element for securing the door element over the material receiving opening and against at least a portion of an adjacent surface surrounding the material receiving opening. A transportation container is also disclosed.

Abstract: A locking device for locking an opening-and-closing moving body in a stopped position includes a striker body disposed on one of a striking part of the opening-and-closing moving body and a struck part of a non-moving body hitting against the striking part of the moving body in the stopped position, and a catcher body disposed on the other of the striking part of the moving body and the struck part of the non-moving body. The catcher body includes an inner part with a receiving part for receiving the striker body, an outer part for holding the inner part, a forcing device for urging the inner part, and a damping device for damping the inner part. The forcing device urges the inner part to engage the outer part and stop when the inner part is situated in a forward position.

Abstract: A latch useable to secure a gate such as typically found on a pontoon boat includes a latch bolt slidably received within a barrel. A spring interposed between the bolt and the back end of the barrel maintains the bolt in an extended position protruding out the mouth of the barrel until the bolt is retracted back within the barrel. A cover carried by the latch bolt prevents debris from entering the spring area in the barrel, which could interfere with the latch's action. The latch secures the gate in its closed position with the bolt extending into a complementary receiver carried by the adjacent wall.

Abstract: A bear-resistant pannier including an open top pannier preferably constructed of metal with a recessed cover for covering the open top. A spring loaded latch selectively secures the pannier.

Abstract: A locking necked barrel bolt apparatus includes an attachment plate having a hollow barrel body attached to an upper surface thereof. A neck bolt having first and second sections rotatably connected to one another is slidably disposed within the barrel body. The first section has a handle extending therefrom and the second section has an angled portion configured to be inserted into an aperture of a locking plate. The handle of the first section is capable of being turned into a locking notch of the apparatus to secondarily lock the apparatus and prevent the bolt from unwantingly being removed from the locking plate.

Abstract: A deadbolt latch body externally mounted to an interior door encasement by an unconventional method. The latch assembly, including a slotted receiver member fastened to a hinged door adjacent the latch, includes a crank-shaped shot bolt carried by the latch body for engagement with the slotted receiver. The latch bolt has al least two biased indented positions. The latch assembly may include a more secure dead bolt striker plate for existing internal dead bolts that provides even greater security when the striker plate is extended from between the door and the casement and secured between the security door latch body and the door casing. A unique mounting is provided for the latch body by providing a threaded mounting stud extending from the interior located latch body through the door encasement and retained exteriorly by a recessed threaded collar.

Abstract: An improved fixing structure for power supplies defines an accommodating area on a power supply for installing a fixing structure, and the power supply has a fixing hole on a casing of the power supply defining a limit fixing condition for the fixing structure when the power supply is pushed into the casing, and the power supply has a limit hole for installing a limit fixing member to restrict the displacement of the fixing structure, and constitutes a fixing structure that can be installed directly inside a power supply without occupying additional space, and attains the effects of fixing two fixing structures and limiting the fixing member.

Abstract: A sealable casing having a quarter-turn closing arrangement including a tubular body defining an orifice at one end having radially projecting arcuate members and clearances formed along an inner periphery thereof. The casing further includes a cap having radially projecting arcuate members and clearances formed along its inner periphery that are complementary to arcuate members and clearances of the tubular body. A hoop member is connected to the cap and includes a plurality of extensions that are biased by at least one resilient member connected to the cap so as to press against the inner Periphery of the tubular body. The extensions are connected to a drive handle mounted underneath a bail of the cap and cooperate with the at least one resilient member.

Abstract: Access apparatus including an access device including at least one of a door and a window, the access device including at least one openable element; and opening apparatus adapted to open the at least one openable element in a presence of a pressure difference of a predefined magnitude between opposite sides of the access device.

Abstract: A lock for preventing one member from moving relative to another member has a housing securable to one member, and a plunger unit mounted in the housing. The plunger unit has a sleeve, a plunger slidably mounted in the sleeve, and a spring acting between the plunger and the sleeve to resiliently bias the plunger to a locking position in which a free end portion of the plunger projects from one end of the sleeve. The plunger also has a manually operable portion projecting from an opposite end of the sleeve. In the locking position, the free end portion of the plunger projects from the housing to extend into an aperture in the other member, when the housing is secured to the one member, and thereby prevent relative movement between the members. The plunger also has an unlocking position in which the free end portion thereof is withdrawn from the aperture in the other member by pulling the manually operable portion against the action of the spring.

Abstract: A system is disclosed for ensuring that the pod door is firmly and securely retained on the port door of a process tool as the pod door is removed from the pod and stowed in the process tool during workpiece transfer between the pod and process tool. The system includes a latch key protruding outwardly from the outer surface of the port door. The latch key is provided to mate within a slot of a door latch assembly within the pod door. Once the latch key is properly seated within the slot, the latch key is rotated by mechanisms within the port door to decouple the pod door from the pod shell. Such rotation at the same time couples the pod door to the port door. According to the present invention, while the latch key rotates, it simultaneously moves in the rearward direction (i.e., back toward the port door) to thereby pull the pod door into a tight engagement with the port door.

Abstract: Access apparatus including an access device including at least one of a door and a window, the access device including at least one openable element; and opening apparatus adapted to open the at least one openable element in a presence of a pressure difference of a predefined magnitude between opposite sides of the access device.

Abstract: A linear compression latch includes a lever handle linked to a pawl. As the latch is opened, the pawl is initially constrained to move vertically within a carriage. After an intermediate position is achieved, the pawl is constrained to move horizontally within the carriage.

Abstract: A latch assembly including a lug, a rack, and a lever is provided for portable computer. The lug rotatably mounted on a cover case. A hook formed on the other end of lug protrudes through a hook opening of cover case in a closed position so as to be securely connected to hook holder of a main body case through a front opening of the main body case in a closed position and is securely located into inside of the cover case in the open position so as to avoid being broken and injuring an user. The rack slidably disposed within the cover case allows the lug to be projected through the cover case or to be located underneath the cover case. The lever disposed at an outer surface of the cover case is connected to the rack to causes the rack to slidably and linearly move and the lug to rotate and to protrude from and retract into the surface of the cover case. Protrusions formed on the lever contacts a pair of convex portion of the cover case so as to securely maintain the closed or open position.

Abstract: An improved throat plate is disclosed herein. The throat plate includes a main body, an opening in the main body for allowing a cutting tool to extend therethrough, and a retainer assembly attached to the main body for retaining the throat plate in contact with the table. Preferably the retainer assembly is pivotally attached to the main body and/or is movable between a first position contacting the table and a second position bypassing the table. The retaining assembly may pivot about an axis substantially perpendicular to a plane of the table. The retainer assembly may also include an extension that contacts underside of the table. The extension in turn may include a camming surface contacting the underside of the table.

Abstract: A latch device in which joggling of a latch main body is prevented and smooth movement of the latch main body is realized. When the latch main body is pushed-in from a first position of an insertion direction of the latch main body, holding of the first position is cancelled. Due to a spring, a stopper moves in a guide hole and abuts an end of the guide hole and the latch main body reaches a second position at a side opposite an insertion side. If the latch main body is pushed-in from the second position, the latch main body returns to the first position. When the latch main body is pushed-in to the first position and moves, an abutting portion extending from the stopper to a latch main body insertion side slides along an inner surface of a case wall, in a direction in which the stopper fits into the guide hole, along a side edge of the guide hole at a region at which the abutting portion misses the guide hole.

Abstract: Locks for security grills used on doors or windows tend to be structurally complicated, and consequently expensive to produce and/or install. A relatively simple lock assembly for use with a security grill includes a box for mounting on one edge of a grill, a slot in one side of the box for opposing the frame of the door or window when the grill is closed, a plate for mounting on the outside of the frame in opposition to the box, whereby the plate completely covers the slot when the grill is closed, a bolt extending through the plate for rotatable mounting in the frame in alignment with the slot, an ear on the outer end of the bolt for insertion through the slot into the box when the grill is moved to the closed position, and a handle on the inner end of the bolt for rotating the latter between a release position in which the ear can be inserted into or removed from the box via the slot and a locked position in which the ear is retained by a projection in the box.

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: An improved latch for securing together two portions of enclosure in which a rotary latch member is secured for rotation to an upstanding wall of one of the portions of the enclosure. The latch member includes a generally circular disk having an annular wall formed about the periphery thereof, the annular wall having an interruption therein and the latch member being rotatable between locked and unlocked positions. A lug is formed on an upstanding wall of the second portion of the enclosure upon assembly of the two portions of the enclosure, the lug is received interior of the annular wall through the interruption therein and the latch member is rotated to the locked position to confine the lug within the annular wall. A stop member extends from one of the upstanding walls generally adjacent the periphery of the disk and includes a locking aperture. A locking lug extends generally outward from the annular wall of the latch member and generally tangentially to the periphery of the disk.

Abstract: A tightening latching device includes a housing having a pair of curved slots. A roller is rotatably engaged in the housing and includes an actuating piece. A latch is engaged on the roller and has an opening for engaging with the actuating piece. The latch includes two rods for slidably engaging with the curved slots of the housing and movable from one end to the other end of the curved slots. The latch is rotated by the actuating piece and the rods of the latch are moved from one end to the other end of the curved slots so as to engage the latch with an object.

Abstract: A security door bar safety device elongated rod has a main extension portion having a distal end insertable within a hole within a floor adjacent to the door, and an arcuate handle end at a proximal end of said main extension portion. The arcuate handle end has extending downward therefrom a further partial extension, which is rotatable within a ferrule bar sleeve portion mounted adjacent to said door. The further partial extension portion is movable rotatably about the extension portion within the ferrule sleeve from a position of non-use to a locking position, wherein the main extension portion extends vertically parallel to said further partial extension portion.

Abstract: A locking assembly consisting of a post device is positionable in floor adjacent to a door permitting the door to be no more than partially opened. The locking assembly comprises a base fixture permanently mounted in the floor, and a post in the base assemmbly which can be raised so as to block the door against being completely opened, or lowered to permit the door to be completely opened. The locking member is releasably coupled within the fixture by means of a post connection. The post is raised or lowered by turning the post clockwise or counterclockwise until a pin located at the bottom of the post engages with a slot in the post thereby permitting the post to raised or lowered.

Abstract: An improved door bolt comprises a slide bar seat, a slide bar disposed in an axial hole of the slide bar seat, a bolt button fastened to the slide bar, and an outer seat provided with a recessed portion having two open ends and two opposite side walls. Located symmetrically in the two opposite side walls are a plurality of parallel grooves. The slide bar seat is mounted in the recessed portion such that two wings of the slide bar seat are slidably inserted into two opposite grooves. A slide bar retainer seat is provided with a retaining hole and an inner sleeve mounted in the retaining hole in such a manner that the inner sleeve can be caused to move along the direction of the longitudinal axis of the retaining hole.

Abstract: A security shield device is provided in two embodiments. One embodiment includes a front cover, a rear base and a connector member connecting the front cover to the rear base. The front cover is mounted to a slidebolt latch for movement between a covered position shielding a padlock shackle coupled to a latch portion of a slidebolt latch and an uncovered position displaced from the latch portion of the slidebolt latch. The rear base mates with the latch portion of the slidebolt latch so as to attach the rear base to the slidebolt latch when the padlock shackle is coupled to the slidebolt latch. The connector member prevents movement of the front cover relative to the slidebolt latch away from the rear base which would expose the shackle of the padlock. The other embodiment includes a front cover, a rear base connected to the front cover, and apertures defined therein aligned with openings in stationary and movable latch portions of a slidebolt latch.

Abstract: An improved material handling wire-mesh container having a bottom wall secured to a support frame, a rear and front wall hinged respectively to a rear and front edge of the bottom wall, and side walls hinged to a respective vertical end edge of the rear wall. Lock members are secured to the front wall adjacent opposed vertical edges thereof for locking the side walls and front wall in a vertical position with the rear wall disposed vertically. Each of the lock members has a latch secured to the front wall adjacent the vertical edge. The latch has a lock rod formed with a handle member and guidingly slidable in a keeper member so that the lock rod may be displaced axially. An arresting projection is secured to the lock rod for maintaining same in a lock position. Bolt receiving means is secured to each of the side walls for receiving a lock bolt end therein to secure the side walls to the front wall.

Abstract: Door- or panel section with an extruded elongate housing with C-shaped cross-section, side legs and facing end edges the central parts of the inside of the body, of the two side legs and of the end edges of the cross-section having a surface rounded according to an unscribed circle for housing a closing element, the faces adjoining them enclosing a right angle.

Abstract: A door lock comprising a first thin plate having connecting channels secured to the side wall of the door jamb and a second thin plate having corresponding connecting channels secured to the side wall of the door adjacent its swinging edge in position for registration of its connecting channels with those of the first thin plate when the door is in its closed position. A locking pin is received through the connecting channels of both plates when they are brought into registration with each other to thereby hold the door in its closed position until the locking pin is withdrawn. The outwardly facing surface of the first plate secured to the door jamb and the surfaces of its connecting channels which face toward the swinging edge of the door when in its closed position are preferably coplanar to prevent those surfaces of the first plate's connecting channels from protruding into the swinging path of the door as it is opened and closed.

Abstract: A simple dead bolt is mounted inside sleeves which are aligned between a door and its door jam. One end of the dead bolt has a latch key projecting inside the room. The latch key can be mounted either on the door or in the wall. Sliding the latch key closed securely and rapidly locks the door from the inside.

Abstract: An improved drop rod latch for use with double-hung gates used with fences of woven wire fabric. Typically one of such gates is secured in position by a vertically reciprocating latch rod carried in tubular guides attached to the inside or central stile of the gate frame and engaging at its lower end a hole or a socket member placed in the ground. The upper end of this latch rod has a short, right-angled extension which serves as a handle by which the latch may be grasped for manipulation. The central stile of the other gate frame carries a fork latch pivoted to extend between a horizontally projecting position in which it embraces the central stile of the gate to which the latch rod is attached and a vertically projecting position in which it does not engage said gate. Thus, when the latch rod is in engagement with the ground socket and the fork latch is embracing the latch rod-carrying stile, the gates cannot be swung to open position.

Abstract: An electro-mechanical locking device, including a dead bolt having a slot at one end portion and having at its other end portion a tip configured to enter a preformed shaped aperture while assuming at least one orientation and to be blocked by rim portions of said aperture while assuming at least one other orientation and an electrically operable means for applying a rotary movement to a guide member for the dead bolt. The guide member is coupled to the bolt by means of the slot. The device further includes a key operated unlocking and locking actuator means connected to said bolt for effecting linear retraction and extension movements of the bolt when acted upon by the key, while allowing rotary movement of the bolt by said guide member when the guide member is acted upon by the electrically operable means.

Abstract: A vandal resistant shrouded slide bolt lock assembly is provided and consists of a shroud guide and a staple secured to a plate that is secured near and edge of a door. A bracket is secured to a wall frame so that when the door is closed an end portion of the shroud guide will cover the bracket allowing a slide bolt to manually enter the bracket and an aperture in the end portion of the shroud guide while a hasp will contact with the staple. A bushing rotatively mounted on said slide bolt between said shroud guide and said hasp to prevent tampering and cutting of said bushing and said slide bolt therein.

Abstract: A sliding bolt with stationary safety cover for mounting on a door and for locking with a padlock having a bale portion and including the following structure. A back plate for mounting on the door. An upper pair of flange members extending outwardly from the back plate and with each upper flange member including a first opening. A sliding bolt passing through and guided by the first openings in the upper pair of flange members. A lower pair of flange members extending outwardly from the back plate and with each lower flange member including a second opening for receiving the bale portion of the padlock. A handle and locking member attached to the sliding bolt and including a first upwardly extending portion forming a handle for sliding the bolt within the first openings in the upper pair of flange members and including a second downwardly extending portion located between the lower pair of flange members.

Abstract: A lock assembly for a horizontal sliding sashless window is provided. The lock assembly comprises a block having anchor means, and pivotal attachment means. The block has a vertical lock surface formed to block the leading edge of the sliding pane when the sliding pane is in closed position, with clearance to permit pivotal movement of the lock surface away from the sliding pane. The pivotal attachment means attaches the block to the sill of the window at a position forwardly offset from the lock surface of the block, and provides for limited vertical movement of the block away from the sill. The anchor means is selectably engageable and releasable by the combination of pivoting the block and by motion away from the sill. The lift and twist motion of the lock assembly does not limit the height of the block or the depth of the anchor means.

Abstract: A bar type lock mechanism including a locking bar for selectively locking a door having a first edge and a second edge, wherein one of the edges is positioned adjacent a striker plate when the door is closed. The locking bar includes a first end having a locking portion and a second end having a handle portion. A frame assembly secured to the door is provided for slidably and rotatably supporting the locking bar for movement between a retracted position and a projected position. The frame assembly is adjustable to advantageously accommodate doors of different widths. The locking portion of the locking bar is provided with a flattened side as well as a curved side. When the locking bar is first placed in its projected position, the flattened side of the locking portion contacts the striker plate. Afterwards, the locking bar can be rotated to its curved side to generate a camming action thereby more securely closing the door.

Abstract: The door latch with lock includes a support bracket adapted to be mounted on the interior surface of an outer screen or storm door, an elongated bolt slideably and rotatably carried in a guideway on the support bracket, and a transversely extending handle on the bolt which extends through a slot in the guideway and is somewhat longer than the spacing between the outer door and an inner door. When the handle is in a generally horizontal sliding position, the bolt slides freely between a latched position wherein the outer end is received in a keeper on the door frame and an unlatched position wherein the bolt is retracted from the keeper. The bolt and handle can be rotated downwardly to a general vertical locking position when the bolt is in either the latched or unlatched positions, but lock means and actuating means prevent the sliding of the bolt between the latched and unlatched positions unless the handle is rotated to the sliding position.

Abstract: A plastic container includes a hinge on one side thereof for hingedly joining the base and cover parts of the container. A latch structure is located on a container side opposite the hinge. The latch structure includes a buckle that is pivotally journaled in undercuts on the cover. The buckle is adapted to bridge the confronting edges and to pivot into and out of releaseable securement with the base.

Abstract: An elongated housing member rectangular in cross section has aligned forward and rear openings formed through opposite ends. The housing has two opposite sides adapted to be connected to a side frame member of a gate with a hollow cross member having an open end located in the rear opening. A bolt located in the housing has a forward end extending through the forward opening and a rear end extending through the rear opening and into the open end of the cross member. A plate connected to the forward end of the housing has a first aperture formed therethrough defining said forward opening and an edge extending beyond a third side of the housing. A slot formed through the third side of the housing has an elongated portion extending along the length of the housing and a short transverse portion extending from the elongated portion next to the plate. A handle connected to the bolt extends through the slot.

Abstract: A back plate serving as a slide bolt frame is designed to be fastened to a door such as a garage door to position a latch bolt slidably mounted on pivot tabs of the back plate. A cover plate has complementary pivot tabs which engage the latch bolt and pivotally mount the cover plate on the back plate. Both plates are also provided with a pair of locking tabs positioned so that one tab of each pair lies adjacent one tab of the other pair for engagement by the shackle of a padlock. In this way, the cover plate is held in an overlying position protecting the padlock. A transverse projection on the latch bolt has a slot engageable with tabs of each pair thereby to lock the latch bolt in either extended or withdrawn position.

Abstract: A manhole cover assembly comprises a seating ring which can be inset in a street or roadway surface and which is formed with a pair of lateral compartments in which respective latches of the plug-like cover can be received. According to the invention, the cover has a pair of opposing radial projections adapted to be received under respective projections of the ring upon rotation of the cover relative to the ring in bayonet action. Each of the latches is in the form of a pawl pivotal about a respective pin on the radial projection and adapted to swing so that a surface of the pawl substantially completely closes the compartment, flush with the upper surface of the ring and an end wall of the pawl abuts or is juxtaposed with the wall of the compartment to prevent rotation of the cover. The pawl can have flanges which, when the pawls are swung upwardly, form handles enabling the cover to be lifted from the ring.

Abstract: The door latch includes a support bracket adapted to be mounted on the interior surface of an outer screen or storm door, an elongated bolt slidably and rotatably carried in a guideway on the support bracket, and a transversely extending handle on the bolt which extends through a slot in the guideway and is somewhat longer than the spacing between the outer door and an inner door. When the handle is in a generally horizontal operating position, the slot permits the bolt to slide freely between a latching position wherein the outer end is received in a keeper on the door frame and an unlatched position wherein the bolt is retracted from the keeper. Detent recesses located at the opposite ends of the slot permit the handle to be rotated downwardly to a generally vertical non-operating position when the bolt is in either the latching or unlatched positions and prevent sliding of the bolt unless the handle is rotated to the operating position.

Abstract: A locking mechanism is provided having a frame for mounting on a door or other closure. A movable bolt is supported on the frame for movements between extended and withdrawn positions. An additional member is mounted on the frame for slidable movements generally parallel to the bolt. At least two locking means are incorporated into the locking mechanism, the first of which releasably connects the bolt to the member, and the second of which releasably positions the member with respect to the frame. With the first locking means engaged, the bolt is movable together with the member. With both the first and second locking means engaged, the bolt is locked in the extended position. A securing means engagable with the first locking means prevents release of the first locking means. The locking mechanism is particularly adapted for use on storage compartments wherein a renter of the compartment will gain access by way of the first locking means and the owner will gain access by way of the second locking means.

Abstract: A rod lock for doors or gates having two wings, comprising a locking rod or bar mounted at one wing for vertical displacement. The locking rod, in its closed position, engages into a recess or depression in a floor or the like. The other wing has at least one stop or impact member against which bears the wing having the locking rod. A door lock is effective between both of the wings. At least two guide rings are provided in which the locking rod is vertically displaceable and rotatable about its lengthwise axis. A locking or closure element mounted at the rod is pivotable together with the rod and intended to engage in its closed position between the mutually contacting door wings. A retarding or inhibiting element at the counter-wing prevents lifting of the locking element and thus the locking rod or bar.

Abstract: A combination door handle and locking device comprising a handle portion having a stem rotatable and slidable in a lock housing. A coil spring on the stem maintains pressure on the locking portion. At least one striking plate and adjacent keeper slot is provided on one end of the housing, and preferably two are provided, one on each end. A leaf spring adjacent the keeper slot applies pressure to the locking portion while it is in a closed position.

Abstract: A lock comprising a bolt slidable into an operative position and from there rotatable into a locked position in which pins projecting from the bolt prevent it from sliding: locking members are rotatable about axes orthogonal to the axis of the bolt into positions where they interfere with rotation of the pins, and prevent the bolt from being rotated out of the locked position, unless the locking members are properly positioned about their axes.

Abstract: A safe and tamper-resistant lock assembly for sliding glass doors and the like for securely locking a slidable door in a closed or partially opened position. The lock assembly includes a specially configured bracket which is mounted upon the stationary frame assembly of the door unit. The bracket has an inverted J-shaped channel and an elongated wall defining a plurality of apertures including one aperture which is positioned to overlie an aperture in the slidable frame of the door when the door is in a closed position and another aperture which is positioned to overlie the aperture in the slidable frame when the door is in a partially opened position. A specially configured locking key is provided with a cylindrical shank having an arcuate locking cam for lockably engaging the inverted J-shaped channel of the bracket when the shank is inserted into the aperture in the slidable frame and into one of the apertures in the bracket.

Abstract: A door and handle latch for apparatus enclosures includes a recessed handle latch on the door which serves to immovably secure the door to the enclosure structure by engaging a portion of the enclosure when the handle latch is in the closed position. A bolt means is provided in the lower portion of the handle latch to secure the handle latch to the door in a closed position, thus, preventing opening of the enclosure.