Abstract: A locking device is described. The locking device is utilized to lock and unlock a removable device and especially to be suitable for locking and unlocking the removable device of a notebook computer. The locking device has a latch, an elastic member and a sliding switch. The latch engages a fixing indention of the removable device to fix the removable device. The elastic member provides a force to push the latch forward and a recess for retracting the latch backward. The sliding switch utilizes a stud to glidingly couple to a sliding surface of the latch so that the movements of the sliding switch and the latch form a predetermined included angle, preferably of about 90 degrees.

Abstract: An integrated locking device is described. The integrated locking device is utilized to lock and remove a removable device and is especially suitable in a notebook computer. The locking device has a latch, a first elastic device, a push arm, and a sliding switch. The latch locks a fixing indention of the removable device to fix the removable device. The first elastic device provides a force to push the latch moving forward and a space for the latch moving back. When the removable device is taken out, the sliding switch pushes the push arm first. Then, a slider of the push arm pushes a sliding inclined surface of the latch to withdraw the latch from the fixing indention. Subsequently, the push arm pushes the removable device outward for releasing the removable device. The movements of the sliding switch and the latch form an included angle, preferably about 90 degrees.

Abstract: An adjustable locking strap includes a first loop, a second loop, and an adjustable strap extending therebetween. The second loop can be adjustable in size. The first loop can be fit about a first end of the elongate object, and the second loop can be positioned about a second end of the elongate object and adjusted for proper size. The strap extending between the loops can be adjusted between the loops so that when the first and second loops are positioned about the elongate object, the strap is sized to prevent either loop from being removed from the object. A lock is interconnected with the adjustable loop and strap for securing the size of the adjustable loop and strap. A tether portion can secure the locking strap to a fixed object. A stopper on the tether can be positioned within a car, and the window rolled up to retain the locking strap within a car. A storage bag can be interconnected with the strap for convenient storage thereof.

Abstract: An adjustable locking strap apparatus for locking an elongate object includes a first loop, a second loop, and an adjustable strap extending therebetween. The loops can be fit about ends of the elongate object. One loop could be adjusted adjusted for proper size. The strap extending between the loops can be adjusted between the loops so that when the first and second loops are positioned about the elongate object, the strap is sized to prevent either loop from being removed from the object. A lock is interconnected with the adjustable loop and strap for securing the size of the adjustable loop and strap. A tether portion can secure the locking strap to a fixed object. A stopper on the tether can be positioned within a car, and the window rolled up to retain the locking strap within a car. In other embodiments, two straps with loops at one end and stoppers at the other end can used. One loop is positioned about an end of the elongate object and the strap is retained in a housing.

Abstract: A security apparatus for enclosing the branch connections of a cable-TV aerial tap unit to prevent unauthorized used thereof including a box like structure mounted on the bottom of the tap unit to enclose the cables and connections thereof and providing a keyed hinged door to allow access to the interior of the box like structure to access the cables and the method of securing the same by providing either a slidable clip or a rotatable clip attached to the box like structure that has an opening that engages the shank of the existing bolt of the tap unit when the bolt is loosened while the bolt head bears against the slidable or rotatable clip to hold the box like structure in place so as to allow the tightening thereof to secure the apparatus in place.

Abstract: A lid actuated device foot lifts a device to facilitate cooling. The device foot includes a device lid, and at least one lifting cam coupled to the device lid through a hinge. The lifting cam rotates about the hinge on an axis and has an eccentric contact surface capable of contacting a supporting surface. The device is thus lifted when the device lid is moved to a first position corresponding to an operational state thereby rotating the lifting cam about the axis. The contact surface is non-lifting when the device lid is in a second position corresponding to a non-operational state of the device.

Abstract: A portable computer includes a housing, a power supply, a liquid crystal display panel, a keyboard, a pointing device control unit, and a cassette. The housing has a recess, and the cassette is detachably installed in the recess. The cassette includes a case, a motherboard, a central processing unit, a chipset, and a memory. The recess and the cassette are connected through a connection interface having a port for power supply, a display device connection interface, and a peripheral device connection interface, for transferring power and signals.

Abstract: A locking device for use with an electrical plug having a pair of spaced prongs, each prong having an aperture spaced from its free end portion, the locking device including a body member, a pair of spaced apart arm members, and an elongated member extending between the pair of arm members. The transverse member is adapted for insertably receiving the apertures associated with the plug prongs, one of the arm members being pivotally movable between a first position wherein sufficient space is provided for engaging the plug apertures with the free end portion of the elongated member and a second position wherein the plug prongs cannot be disengaged from the elongated member.

Abstract: A method and an apparatus for locking a gooseneck trailer hitch such that a hitch ball cannot be inserted into or removed from the hitch. In one preferred embodiment, the hasp of a lock is passed through the retainer bracket of the hitch and locked with or without passing through the hitch handle. In another embodiment, a lock pin with an eyelet on one end is inserted into the retainer bracket of the hitch, and the hasp of a lock is passed through the eyelet and the hitch handle. In yet another embodiment, a lock pin with an eyelet on one end is inserted into a pair of openings on the cover plate surrounding the hitch handle, and the hasp of a lock is passed through the eyelet and the hitch handle.

Abstract: The invention described herein relates to a filter system for sterilization containers which secures a gas permeable filter onto a vented portion of the container. The filter system of the invention includes a locking mechanism that is comfortable and easy to use, and that requires a simple sliding movement of the users hand to lock and unlock the filter system components in place. The invention further includes a filter system structured such that the openings of the filter system plates permit transport of air across the filter while at the same time the openings are arranged to reduce or prevent undesirable physical perforation of the filter. By virtue of its structure, the need for particular rotational positioning of filter components in relation to one another is significantly reduced. The filter system of the invention also reduces or eliminates the need for perimeter gaskets.

Abstract: A burglarproof lock for a computer which blocks the connecting port so that an unauthorized person cannot connect another connector with the connecting port to steal data. The burglarproof lock includes a housing having a connecting section and defining a cavity in which a lock apparatus is mounted. A clutch is disposed in the cavity for controlling unlocking/locking of the lock apparatus. The clutch includes a tool mounted on a lock core of the lock apparatus, a valve body controlled by the tool to be movable or unmovable and a complex bolt having an axially movable and rotatable adjustment press button and a bolt member rotatable along with the adjustment press button.

Abstract: In a lock of information reproducer for car, when a passenger or a driver stays in a car, in more detail, only when a car key is inserted into a car key holder (power of the car is ON), an information reproducer can be detached from a contact support unit, when the key is taken out of the key holder, the information reproducer can not be detached from the contact support unit, and accordingly theft of the information reproducer can be efficiently prevented in parking.

Abstract: A remote-controlled door lock includes a housing installed inside with a battery base, a circuit board and an electromagnetic valve. The electromagnetic valve is fitted with a lateral valve rod controlled by the circuit board to extend out of the through hole in a sidewall of the housing and engage in the insert hole in a sidewall of the bolt base of a doorjamb. A remote controller is operated to control the valve rod of electromagnetic valve to move outward and extend out of the through hole of the housing and engage in the insert hole of the bolt base to lock the door at a limited position. Thus, the door lock is impossible to be unlocked only by a key before the valve rod of the electromagnetic valve is released by the remote controller to disengage from the insert hole of the bolt base, having best effect of anti-theft.

Abstract: A T-bar lockable linkage between the gunnels and forward of a marine craft limits opening of side and central storage containers. The linkage includes a pair of tubular outer arms independently pivotally connected to a center link having an extended position for connection to the mounting brackets and a shortened position for removal therefrom. A shiftable lock block slidably supported on the linkage effects rigidized coaxial alignment of the outer arms in the extended position, The lock block includes a locking hub for releasable connection with a transverse center arm for limiting opening of the storage containers. The hub carries a keyed locking device including a latch bolt that engages the cross arm assembly to unitize the assembly and prevent separation of the components.

Abstract: The present technique provides a multistage security system and method for physically securing a portable computing device and an attachable expansion device together or separately to an external fixture, such as a desk. A security structure, such as an internal lock structure, is disposed in one of the portable computing device and the attachable expansion device. An external device-to-fixture fastener is interlockable with the security structure in one of a plurality interlock stages, which facilitate separate or joint security of the portable computing device and the attachable expansion device using the one security structure. For example, the security structure may have first and second lock slots to lock the attachable expansion device to the external fixture, while the second lock slot also has an internal trigger mechanism to interlock the portable computing device to the attachable expansion device.

Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.

Abstract: The invention relates to a protective-door handle for a protective door which is fitted with at least one safety tumbler and is intended for a protective region of a machine, mechanical installation or the like, having a central leg and two side legs which are connected thereto and can be fastened to the protective door, the central leg having a hole which opens into a wiring opening opened to the outer circumference of the central leg, there being inserted into the hole a release element which is intended for unlocking the safety tumbler and whose electric connections are connected in the wiring opening to corresponding supply lines, the wiring opening being plugged with a casting compound.

Abstract: A handheld computer is provided that includes a first module combined with one or more modules. The first module includes a housing having one or more coupling surfaces, with each coupling surface including a coupling mechanism. A second module is coupleable to the first module. The second module includes a third coupling surface having a second coupling mechanism for mating with the first coupling mechanism. The third coupling surface is positioned on the second module so as to abut at least partially against the second coupling surface when the first coupling mechanism is mated with the second coupling mechanism.

Abstract: A lock in combination with a name card case to be used for securing and providing an identification of an item such as a suitcase. When the lock is at a securing state, a latch firmly engages a securing hook to be looped to the item. When the lock is at a releasing state, the latch disengages with the securing hook to release the item. Moreover, during the releasing state, the lock can be slid toward a side of the name card case until the lock and the name card case are separated. At this time, a name card can be received in the name card case and the lock can be slid back on the name card case again. Therefore, when the lock is used to the secure the item, the name card can provide the identification of the item.

Abstract: A load binder with locking structure has a cradle portion defining two spaced arms and an actuating handle having a swinging component portion at a first end. A first pivotal connection is operatively connected to one end of the cradle between the two spaced arms and a second end of the actuating handle for relative swinging movement about a first pivotal axis between a load tightening position and a release position such that an intermediate portion of the handle is received between the two arms of the cradle. A second pivotal connection is operatively connecting a second tension element to the handle for relative pivotal movement about an axis offset from the first pivotal axis at a location to be overcenter with respect to the first axis when the handle is in a load tightening position. A locking pin has an elongated member with a first eccentric portion located near or on a first end.

Abstract: An information processing device has a pair of projections joined to a display unit and angularly movable about an axis which is disposed in a position vertically spaced a predetermined distance from a display panel of the display unit, and a pair of supports. The projections are angularly movably supported by the supports such that the axis is positioned within the main unit.

Abstract: A lock for a computer has a housing, a core pivotally mounted to the housing, a latch formed on and extending out of the core, a rod coupled to the core. The rod has a flange end and a pair of pins extending from the flange end. A spring is disposed around the rod to provide a resilience to the pins, and a cable is pivotally connected to the housing. A case of the computer has a latch chamber and an entrance communicates with the latch chamber to allow the latch and the pin to enter the latch chamber through the entrance.

Abstract: A keyed knob assembly (10) having a knob portion (12), a knob insert (14) partially received within a bore (18) formed in the knob portion (12) and a shank portion (16) partially covering the knob insert (14) is disclosed. A throughbore (48) formed in the knob insert (14) is provided which operably supports a locking cylinder assembly (42). An axial channel (50) formed in the shank portion (16) terminates at a radial slot (52) to provide a means for releasably coupling the knob,assembly (10) of the present invention to a catch (54) of a lever catch subassembly associate with the chassis of the lockset.

Abstract: A locking cover plate and locking device respectively, control access to a receptacle and inhibit removal of a plug from a receptacle of a power distribution panel having a sequential coupling guard at a row of receptacles. The first locking cover plate rotates to lock and unlock a receptacle by covering the receptacle using a cover plate portion and uncovering the cover plate portion from the receptacle, respectively. The locking device rotates to lock and unlock a plug in the last receptacle by inhibiting removal of the plug from the receptacle using a tab portion and allowing removal of the plug by rotating the tab portion, respectively.

Abstract: A T-bar lockable linkage is deployed between the gunnels and forward seating or casting area of a marine craft and effective to limit opening of an array of side and central storage containers including a telescoping cross bar assembly that is connected to mounting brackets at the sides of the front boat deck. The mounting brackets include universal connectors that allow self alignment of the cross bar assembly, notwithstanding varying boat configurations or installation inaccuracies. The cross bar assembly includes a slotted slidable hub that may be aligned with a forward anchorage location, preferably an existing pedestal base for a swivel boat seat. The cross bar assembly includes matching holes aligned with a medial slot in the hub. A front anchor is releasably attached to the front pedestal base and slidably receives a center locking bar. With the center locking bar in place, the front anchor is conditioned against removal.

Abstract: A security support system and method adapted to display an item on a support surface having spaced apart parallel channels to lockably retain the item against unauthorized removal. The security support system includes a base member that is sized and configured to engage the channels, a support arm that is adjacent to the base member that holds the display item, an optional retainer element that is sized to prevent removal of the display item and a lockable element that engages the support arm on the distal end opposite the base member. The lockable element is secured to the support arm in a locked state and is configured alone or with the optional retainer element to prevent removal of the display item. The lockable element in an unlocked state disengages from the support arm allowing removal of the display item and the optional retainer.

Abstract: A torsion system for a portable computer including a base and cover pivotally connected to the base for movement between a closed position and an open position. The cover has a free end and a pivotally connected end. A pair of spaced apart hinge components are mounted on the pivotally connected end of the cover between a first side and a second side of the cover. A first frame portion is mounted in the first side of the cover and a second frame portion is mounted in the second side of the cover. A torsion member interconnects the pair of hinge components and the first and second frame portions. The torsion member has a closed cross-section.

Abstract: A lid assembly that includes a lid and a coupling mechanism for coupling the lid to a palmtop computer system. The coupling mechanism is double jointed so as to move the lid from a closed position to an open position. In one embodiment, the coupling mechanism includes a plate and two clips that attach to the plate such that the clips rotate relative to the plate. The plate couples to the lid such that the lid rotates relative to the plate. In the closed position, the lid covers the display of the palmtop computer system. The lid is movable into the open position. In the open position, the display is uncovered and the lid is disposed against the rear side of the palmtop computer system. In one embodiment, the lid includes an opaque region and a non-opaque region. The non-opaque region allows for viewing a portion of the display of the palmtop computer while the lid is in the closed position.

Abstract: An extension device 5 is engaged in a connector provided on one side of a lower case 102 of a cabinet 100 of an PIP apparatus PI. An adjustable foot 6 is provided on the bottom surface 102u to adjust the extension device 5 and the cabinet 100 in height. Therefore, the cabinet 100 can be horizontally placed on a plane. When the extension device 6 is approximately equal in height to the lower case 102, the adjustable foot is retracted into the lower case 102. Therefore, the thickness of the PIP apparatus PI can be minimized.

Abstract: The lock for the plug of a power cord has a housing in which the cord is retained. The top surface of the container has a tapered oval shape. A closure having a similar shape to the top surface of the container serves to close the container and has an aperture allowing the egress of the power cord. The closure is pivotally connected to the container by means of a hinge pin. The container and closure also has a pair of mating apertures allowing for the attachment of a locking mechanism.

Abstract: A cable lock system having a length of cable, a female lock housing and a male lock housing. The cable has a lug attached to each of its ends and after the cable is wound through the various apertures of items to be secured, the lugs are inserted into lug apertures in the side wall of the tubular sleeve portion of the female lock housing. The male lock housing has a cylinder bore hole and a lock having a locking tang fixedly secured in the cylindrical bore hole. The male lock housing is telescopically received in the bore hole of the female lock housing with its front end pressed against the respective lugs on the end of the cable member. By turning a key in the lock, the locking tang is directed radially outward into an internal annular groove in the female lock housing thereby preventing removal of the male lock housing from the female lock housing. The structure of the assembled parts prevents access to a rounded head nut on a carriage bolt that secures the female lock housing to a support wall.

Abstract: The present invention provides for an apparatus and method for securing a computer component in a computer system. Some embodiments include single or multiple panels hinged to a chassis of the computer system. A panel of some embodiments may carry or otherwise secure components of the computer system. One such component that may be carried by a panel is a computer power supply.

Abstract: A locking device for computers and especially for locking the cables of a computer and/or the cables of its peripheral devices, which locking device consists of an attachable frame, which is attached either to a computer or to a peripheral device, and attachable and detachable cover part, and a lock device by which the cover part is locked to the frame. A locking device according to the invention is equipped with formed fixing devices in the frame and/or in the cover part by which the cables connected to the computer are attached when the cover part has been attached to the frame.

Abstract: A computer and a method of EMI containment in a computer chassis having peripheral bays formed in its chassis, and at least two openings formed in a wall of the chassis for providing access to the at least two bays, respectively. Covers are provided for the openings and each cover overlaps its respective opening and one of the covers overlaps the other cover. The covers are interlocked with tabs formed on one of the covers which engage recessed portions formed in the other cover.

Abstract: A computer lock includes a housing (1) having a pair of locking leaves (3) respectively pivotally secured on a front end portion of the housing (1) with the two locking leaves (3) combinably flattened to be inserted through a computer slot (A), and an actuating device (2) slidably held in the housing (1) to be locked in the housing, whereby upon a forward pushing of the actuating device (2) to openly bias the two locking leaves (3) for extending the two leaves (3) to be retarded against the sidewall extension disposed around the computer slot, the computer will then be stably locked with the two locking leaves (3) of the computer lock.

Abstract: A locking arrangement for securing portable computers and the like against theft including a cable (40) with a cable head (36) extended by a first stem portion (42), a collar portion (38) and a free end second stem portion (44) all in axial alignment. A prismatic lock body (10) includes a push-in, keyoperated locking device (24) having a releasable locking detent (26′). The body (14) has front (12), rear (18) and two side surfaces (14; 16). First, second and third bores (30; 32; 34) are formed respectively at the front and two side surfaces, in a common plane, passing each other and being of a diameter slightly larger than that of the collar portion (38). The locking detent (26′) is insertable behind the collar (38) and above the first stem portion (42) thus precluding the extraction of the cable head (36) when inserted into any of the bores. Also, the rear side surface of the lock body can be secured to a portion of the computer, e.g., by gluing.

Abstract: An anti-theft device for an aircraft includes first and second U-shaped members one of which has tubular legs telescopically receiving arms of the other and one of the arms of which extends through a passage in sleeve and control post components in the cockpit of an aircraft to lock the aileron and elevator components of the aircraft against displacement relative to the aircraft wings and stabilizer, respectively. A key or combination type lock releasably holds the anti-theft device in its mounted condition.

Abstract: A lock for locking electronic equipment such as computers and their peripheral devices, is composed of a lock assembly and a cable securely connected with the lock assembly, wherein the lock assembly includes a body with two movable retaining members provided therein, a lock core received in a back cover which is securely combined with the body, and two fastening rods respectively running through the lock assembly corresponding to two screw holes defined at opposite sides of a standard port of equipment. When the fastening rods are respectively engaged into the screw holes of the port, a user can easily lock the lock assembly with a key to remove the retaining members outwards to retain the fastening rods fixedly, whereby the lock is locked with the port.

Abstract: A lock with a fastening cable includes a locking unit with a cable having a passage defined in the locking unit and a key operated lock received in the passage. The key operated lock includes a circular transmission block with the key operated lock in contact with one side and two stubs extending from the other side. These two stubs are on opposite ends of a diameter of a face of the transmission block. A latch connects to the key operated lock. The latch includes a first locking plate and a second locking plate abutting each other. The first locking plate includes a first end having a first bracket extending out therefrom and is moved transversely by the stub, and a second end having a first engagement hook extending out therefrom. The first engagement hook and the first locking plate are in the same plane. The second locking plate includes a first end having a second bracket extending out therefrom and moved transversely by the stub, and a second end having a second engagement hook extending out therefrom.

Abstract: A locking arrangement configured to secure portable equipment includes a tubular lock having a pair of locking arms projecting from a face of the lock body. Each locking arm has a shank portion and a wing portion, the wing portion extending from the end of the shank at a right angle thereto. Each wing has a substantially flat surface. The locking arms are disposed adjacent to one another, and in the unlocked configuration, the wings of both arms are in parallel opposition such that their flat surfaces substantially meet. In the locked configuration, the wings are parallel to each other but extend in opposite directions outside the envelope. This opposite orientation of the wing members prevents the lock from being withdrawn through the locking port. Moreover, if the two shanks are seated within a port whose dimensions closely match those defined by the shanks themselves, rotation of the lock will be substantially prevented.

Abstract: A retightenable and resettable strap lock for luggage includes a female buckle member with number wheels, a male buckle member for releasably engaging with the female buckle member, and a strap connected to the female buckle member and the male buckle member. A slide member is mounted in the female buckle member for restraining movement of the strap. An end of the strap is pullable to further tighten the luggage even if the male and female buckle members are engaged with each other, yet loosening of the strap by pulling the end of the strap in the opposite direction is prevented. A pull tab holder is mounted in the male buckle member for receiving two pull tabs of a zipper of the luggage. The pull tab holder is retained in place by the female buckle member when the male and female buckle members are engaged with each other.

Abstract: A security mechanism is provided, for use with portable equipment, such as a “notebook” type portable computer, which is to be coupled for use with stationary equipment, such as a port replicator or docking station. The security mechanism includes locking structures, located in complementary positions on the computer and the port replicator, for engaging each other to prevent theft by removal of the computer from the port replicator. The locking structures on the computer are standardized across a line of different computer models, so that the security mechanism is operative regardless of which of the different computer models is docked. Specifically, the locking structures of the various computers within the line of products are in corresponding positions on the computers, relative to the positions the computers occupy when docked. Therefore, the locking structures engage the same way, regardless of which computer of the line of products is docked.

Abstract: An anti-theft device for an aircraft includes first and second U-shaped members one of which has tubular legs telescopically receiving arms of the other and one of the arms of which extends through a passage in sleeve and control post components in the cockpit of an aircraft to lock the aileron and elevator components of the aircraft against displacement relative to the aircraft wings and stabilizer, respectively. A key or combination type lock releasably holds the anti-theft device in its mounted condition.

Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.

Abstract: An electrical plug locking device that prevents the unauthorized use of electrical devices. The locking device employs an innovative key actuated cam and cam slide locking mechanism to securely engage the prongs of an electrical plug. The locking device is strong, durable, and tamper resistant.

Abstract: A locking device to fit over a tractor trailer or container carrier air hose coupling consists of a rectangular cage of cut tubular steel with perpendicular welded flange and adjacent hole into which fits an angle flange with welded pin. Alternatively the locking device with semicircular flanges can be fabricated from sheet steel in a continuous bending, stamping, welding and laser drilling operation. A high impact strength plastic is required when the locking device is produced by injection molding. In use a flanged cage is placed over an air hose coupling with the hole directly over the air hole, and a pin or tongue insert is inserted while the hasp of the padlock passes through matching hasp holes. The locking device can be connected and color coded and used for an inventory control system.

Abstract: An anti-theft device is provided including an electrical appliance having a power cord. A stationary hinge portion is fixedly coupled to a recipient surface. Associated therewith is a movable hinge portion hingably coupled to the stationary hinge portion and further lockable with respect thereto. A cord may then be situated between the hinge portions and locked therebetween for preventing the theft of the electrical appliance.

Abstract: A locomotive locket device for disabling the forward/reverse control system of a locomotive or other powered railway vehicle has an axially-expandable plug portion which may be inserted into a keyhole chamber in a locomotive controller. The plug portion comprises upper and lower tubular truncated cylinders having complementary angled faces. When drawn together, the cylinders offset axially from one another, expanding their combined axial diameter. The device may be locked in a closed position.

Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment typically includes an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. The spindle is then rotated 90.degree. to misalign the crossmember with the slot, thereby attaching the attachment mechanism rigidly to the external wall. A cable is secured to the housing and to an immovable object so that the equipment cannot be stolen.

Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.