Abstract: A fastening device for securing a data storage device (50) with a screw (52) secured thereon includes a locating plate (10) and a bracket (26). The bracket receives the data storage device therein, and the locating plate secures the data storage device to the bracket. The bracket includes first and second side panels (30, 40). The first side panel defines a slot (32). The second side panel defines a groove (42) for slidingly receiving the screw of the data storage device. The locating plate includes an engaging section (12) and an elastic section (16). The engaging section forms a latch (22) stamped toward and received in the slot of the bracket, and engaged with the data storage device. The elastic section extends from the engaging section, and provides the locating plate with elastic deformation capability so that the latch can move in and out of the slot of the bracket.

Abstract: An insertion and removal system in a plug-in unit includes a handle-extension slide element inserted freely into the lever part in an advanced or retracted direction to slide in a longitudinal direction of the lever part between an extension position extended from a length of the lever part at the maximum and a retracted position substantially corresponding to the length of the lever part and a locking element arranged on the handle-extension slide element and the front panel, the locking element for locking the handle-extension slide element being slidable to the retracted position on the front panel.

Abstract: A guide device receives and engages a cutout in a distal pin-bearing edge of a printed circuit board for aligning pins with pin sockets. The alignment device includes a web, sized and shaped to be received in a circuit board cutout and a shelf surface for engaging a part of a major surface of the circuit board, to provide for biaxial guidance during board insertion. By positioning guide devices and circuit board cutouts in different locations, for different circuit boards, insertion of circuit boards in an incorrect slot or location is avoided.

Abstract: A portable computer having a main computer body and a keyboard unit slidably attached to the main computer body and movable to various positions in front of the main computer body. A display unit is also slidably attached to the main computer body and movable to various positions up and away from the computer main body.

Abstract: A fastening mechanism for detachable keyboard modules with the keyboard module consists of at least one fastening seat. The fastening seat engages with a fastening means. The keyboard module is fastened to a computer casing through the fastening means. The fastening means includes a body, two slide channels and an elastic element. The body has a second fastener located at the front end thereof and a housing chamber located at the rear end thereof. The two slide-channels are located at two sides of the body to form a slidable coupling with two slides which located at two sides of the fastening seat. The elastic element is restricted between the housing chamber and a stopping flange which located at a rear end of the fastening seat. The elastic force of the elastic element may push the fastening means forwards to enable a second fastener located at the front end of the body to engage with a first fastener located at the computer casing thereby to enable the keyboard module fastening to the computer casing.

Abstract: An enclosure for an electrical package and an end piece therefore are disclosed. The enclosure includes a pair of half shells combined to define an interior cavity within which the electrical package resides. The interior cavity as defined by the half shells is open at one end thereof. The end piece is mounted to the half shells as combined to cover the open end of the interior cavity and close the electrical package within the enclosure at such open end.

Abstract: A removable-type hard disk drive bi-directional ingress and egress structure consisting of a connecting rod conjoined to the lower extent of a rotating shaft, with the other end conjoined to upper extent of another rotating shaft and thereby enabling opposite angles between the two upper and lower rotating shafts. When any single rotating shaft of the two upper and lower rotating shafts is selectively positioned by an extended handle, a tabular projection and two protruding catch hooks of a rotating shaft are utilized to coordinate the revolving of the rotating shafts by the handle such that the opposing action generated by the two upper and lower rotating shafts achieve a balanced ingress and egress effect at both the left and right sides. When the handle is pressed into closure, the catch hooks protrude due to the revolving of the rotating shafts and enables the drive housing to engage a replacement frame.

Abstract: The invention is directed to latching techniques that respond to ergonomically pleasing user movements, and that are well-suited for maintaining low manufacturing costs. One arrangement of the invention is directed to a disk drive assembly having a housing, a disk drive attached to the housing, and a lever that secures the housing to and releases the housing from a main assembly. The lever includes a frame pivotably that is coupled to the housing at a pivot point that defines a pivot axis. The lever further includes a latch that is coupled to the frame. The latch selectively engages with the housing and disengages from the housing. The latch includes an actuation portion that requires movement in a direction along an axis that is substantially perpendicular to the pivot axis to disengage the latch from the housing. Accordingly, if the pivot axis is horizontally-oriented, a user can move the actuation portion in a vertical direction, e.g.

Abstract: A mounting apparatus for mounting a data storage device in a computer housing includes a bracket, a securing means and a flexible plate. The bracket has a first face for supporting a data storage device, a second face opposite the first face and locking holes in its front portion. The securing means is mounted to a bottom of the data storage device and is moveable with the data storage device to be slid into the corresponding locking hole of the bracket. The flexible plate has a rear end securely fixed to the second face and a front end that has an operating portion extending out of the housing for being operable to move the front end away from the front portion of the bracket. The flexible plate further defines through holes for engaging with the locking holes to releasably block the sliding movement of the data storage device.

Abstract: A flexible printed wiring board connectable with a connect or includes a cover coating and a base film. A patterned line array of plural lines are covered between the cover coating and the base film. The plural lines are arranged crosswise to a line longitudinal direction thereof. A terminal section is defined by extending the first insulator layer and the patterned line array from the second insulator layer in the line longitudinal direction, for partially uncovering the patterned line array for external connection. A white line-shaped indicia is disposed on a reinforcer plate at the base film and close to the terminal section, and adapted to positioning the terminal section in the connector.

Abstract: A locking device is adapted for locking a disk drive module inside a computer housing. The computer housing confines an open-ended receiving space that receives slidably and removably the disk drive module therein. The computer housing has a bottom wall and an upright side wall that extends upwardly from the bottom wall and that borders the receiving space. The side wall is formed with a latch hole for access to the receiving space. The disk drive module has a casing that is formed a latch groove. The locking device includes a latch member, a resilient metal wire strip and a positioning unit. The latch member has a locking end portion and a connecting end portion, is adapted to be disposed on top of the bottom wall, and is movable between a locking position, where the locking end portion is adapted to extend through the latch hole and into the latch groove, and a releasing position, where the locking end portion is extracted from the latch groove.

Abstract: The present invention relates to a fixing apparatus for a mounting type card member which is capable of implementing an easier installation of an option card in a computer main chassis without using any tools. In the computer casing, there are provided a main chassis having a bracket having a fixing portion, and a motherboard engaged to the main chassis and having one or more slots, the card members having a connector portion connected with the slot and a bracket formed at one end of the same. A fixing member has a body portion which supports the card member bracket and fixing portions formed at both ends of the body portion, whereby the fixing portions are fixed to the fixing portion of the main chassis, and the body portion contacts with the bracket of the card members for thereby preventing a movement or escape of the card members.

Abstract: An IC card module (20) for producing an IC card (118) having at least one coil (46) and at least one chip (23) for the formation of a transponder unit, with the chip and the coil being connected together by way of a module carrier (21) which renders possible not only an electrically conductive connection between the chip and the coil, but also an electrically conductive connection with an external contact face (38) of the module carrier and the chip, wherein the IC card module (20) has a retaining device (41) which is at a distance from the external contact face (38) by an offset R and projects laterally beyond the external contact face, and also a method for producing an IC card with use of such an IC card module.

Abstract: An enclosure includes a base unit and a cover unit that snaps into the base unit easily, but is difficult to remove from the base unit without knowledge of the appropriate disassembly technique. The appropriate disassembly technique includes the application of pressure at key regions of the base assembly. The application of pressure at the key regions distorts the base assembly so as to disengage key portions of the cover unit from the base unit. The cover unit includes protrusions having an inclined surface and a flat surface. The inclined surface facilitates manufacturing assembly, and the flat surface encumbers the disassembly of the enclosure. The application of pressure at the key regions distorts the base unit so that the flat surfaces of the protrusions on the cover unit are disengaged from the base unit. In a preferred embodiment, the base unit is a resilient insulating material, such as plastic, and the cover unit is a shielding and heat sinking material, such as sheet metal.

Abstract: A docking cable, used to interconnect a computer with a clocking station, has an integrated cabling structure that bundles at least one electrically conductive line (e.g., signal, ground, or power line) together with a security cable. The security cable may be implemented as a strand or alternatively as a grounded tube that wraps around the conductive line to provide both structural security as well as a shield to protect from external electro-magnetic interference. The integrated cabling structure preferably has an anchor portion that allows affixation of the docking cable to a fixture (e.g., desktop, chair, wall, etc.). The docking cable preferably has a computer-side connector coupled to one end of the integrated cabling structure for connection to the computer and a station-side connector coupled to the other end of the integrated cabling structure to interface with the docking station. The computer-side connector preferably has a locking mechanism for locking onto the computer.

Abstract: The present disclosure provides a computer mounted rack system and an apparatus enabling displacement of a slide mounted chassis. The apparatus includes an elongated member having respective first and second ends and respective first and second surfaces. A handle is also included and is preferably coupled proximate the first end of the elongated member. The apparatus further includes a releasable latch preferably coupled proximate the second end of the elongated member and configured to engage a releasable latch aperture in the slide. Additionally, at least one locking member is preferably coupled to the first surface of the elongated member and is operable to engage the slide.

Abstract: A memory card is disclosed which has a card body (2) having a concavity (9) formed at the forward end thereof in the inserting direction and in which terminals (5) are disposed and projections (10) are formed between the terminals (5) to prevent the terminals (5) from being touched or accessed from outside. A receptacle for the memory card is also disclosed. The memory card has a simple structure designed to positively protect the terminals and easily let out dust or the like from inside, thereby permitting to assure a positive connection with the receptacle.

Abstract: A card guide is provided for guiding an edge portion of a circuit board with respect to a support member of a computer chassis. The card guide includes an elongated body having flanges oriented along the length of the body and a surface connecting the flanges. The flanges and the surface together define an elongated recess oriented along the length of the body. The recess in the body is configured to receive the support member of the computer chassis, and the flanges of the body are configured to engage the support member of the computer chassis to mount the card guide to the computer chassis. The recess in the body is also configured to receive the edge portion of the circuit board, and the flanges of the body are spaced from one another to accommodate the edge portion of the circuit board to guide the circuit board with respect to the computer chassis.

Abstract: A device for securing a computer data storage device in a computer enclosure includes a carrier fixed in the enclosure and defining a space for accommodating the data storage device. The carrier has a bottom plate and opposite side plate extending from the bottom plate. At least one slot is defined in the plates of the carrier. The slot has an inner end around which a raised portion of is formed on the corresponding plate of the carrier. A projection is mounted to a corresponding face of the data storage device and the projection has an expanded head separated from the face a predetermined distance whereby the projection is received in the slot and retained at the inner end thereof with the head engaging with and interacting with the raised portion for applying a force to the data storage device to securely fix the data storage device in the carrier.

Abstract: A retention clip for retaining a compact flash drive on a PC board includes a flash drive contact portion. The flash drive contact portion includes first and second leg portions extending in an outward direction from the flash drive contact portion. The first leg portion includes a first foot portion extending at an angle from the first leg portion to allow the first foot portion to be inserted into a first opening formed in the PC board. The second leg portion includes a second foot portion extending outward from and parallel to the second leg portion to allow the second foot portion to be inserted in a second opening formed in the PC board. The flash drive contact portion secures the compact flash drive in a fixed position.

Abstract: First and second thermoplastic case parts house a surge protector semiconductor subassembly having a plurality of components. The first and second thermoplastic case parts are substantially identical, and each case part has a semiconductor subassembly receiving recess therein. The first and second thermoplastic case parts have corresponding projections and recesses so that the first and second thermoplastic case parts may be snapped together to form a hollow case encapsulating the semiconductor subassembly. The hollow case includes spring means integral with the hollow case for applying force on the semiconductor subassembly to retain the components of the semiconductor subassembly together in the event that the case is subjected to high temperature due to a high current surge.

Abstract: A circuit board support for mounting a circuit board in an enclosure includes upper and lower rails respectively mounted to top and bottom sides of the enclosure. Each rail defines a plurality of guiding slots. A support panel to which the circuit board is attached forms projections on top and bottom edges thereof for being movably received and guided by the guiding slots of the rails. A locking member is fixed to each rail and has a resilient front section defining a locking hole. The resilient section partially overlaps the support panel whereby when the support panel is moved with respect to the rails by having the projections moving along and guided by the guiding slots to a predetermined position, the locking hole is brought into engagement with a corresponding pin formed on the support panel by elastically deforming the resilient section of the locking member.

Abstract: A computer system including a chassis having a plurality of walls forming a cavity. The computer system further includes a peripheral device positioned in the cavity. A retention clip movable between an open position and a closed position is attached to one of the walls. The retention clip includes an arm portion and a retention flange. The retention clip retains the peripheral device in a supported position relative to the chassis when in the closed position so that a fastener member can be engaged with the peripheral device.

Abstract: A disk drive enclosure houses a mix of “slim” and “half high” disk drive sizes in almost any order. The preferred enclosure includes at least thirteen equi-spaced pairs of guide rails, wherein each pair of rails includes one rail on one side panel of the enclosure, and the other rail of the other side panel of the enclosure. Each pair of guide rails defines a boundary of a “slot”, such that twelve slots are defined between thirteen pairs of guide rails. Groups of slots are defined, wherein each group includes six contiguous slots. For each group of six slots, four connectors are included on a back panel of the enclosure. Within each group of six slots, the four connectors are positioned within the first, third, fourth and fifth slots, and no connectors are positioned in the second and sixth slots.

Abstract: A computer system having a central processing unit, a memory, a system bus and an input/output controller, comprises: a power supply for supplying power to a computer system; a control block for generating a locking control signal according to a state of a power control signal inputted for controlling an operation state of the power supply; and a removable locking mechanism for performing a locking operation to make a peripheral device not be separated from the computer system, according to the locking control signal. A peripheral device can not be separated from the computer system, thereby preventing the computer system and the peripheral device from being damaged since a removable locking device of peripheral device is locked when power is applied to the computer system.

Abstract: A computer system including a chassis and a microprocessor mounted in the chassis. An input device is coupled to provide input to the microprocessor and a mass storage device is coupled to the microprocessor. A display is coupled to the microprocessor by a video controller and a system memory coupled to provide storage to facilitate execution of computer programs by the microprocessor. A bezel is mounted on the chassis and a bezel door is pivotally mounted to the bezel. A latch is mounted to the bezel door. The latch is movable between a first position and a second position. A resilient member is operatively mounted between the bezel door and the latch. The resilient member is biased to maintain the latch in the first position.

Abstract: An apparatus for securing a component in a computer system. The component is mounted in the chassis of the computer system. The apparatus includes a retaining bracket connected to the chassis of the computer system and a handle connected at a first end thereof to the component. The handle has a first and a second protrusion formed at the first end and has a recess formed between the first and second protrusions. The first protrusion engages the retaining bracket at a first surface thereof to limit the component to a first insertion depth in response to the component being removably inserted into the chassis with the handle in an open position. The second protrusion engages the retaining bracket at a second surface thereof and translates the component to a second insertion depth in response to the handle being moved to a closed position. The recess is configured to establish a clearance between the recess and the retaining member during movement of the handle between the open and closed position.

Abstract: A fastener for detachably coupling a housing, such as a battery pack, to an appliance, such as a wireless terminal, is disclosed. In use, the fastener is disposed in a housing. When a user applies a force to the fastener to release the housing from the appliance, the fastener rotates about an axis, causing an engagement feature of the fastener to rotate away from the appliance, thereby decoupling the fastener from the appliance. The fastener includes a biasing member which provides a restoring force that keeps the fastener coupled to the appliance in the absence of a decoupling force. In some embodiments, the fastener includes various features suitable for reducing stress that accumulates in the biasing member as it rotates during decoupling. Such features include a stress-reducing surface, and an offset between the stress-reducing surface and the axis of rotation.

Abstract: An electronic device includes one or more semiconductor chips interconnected to a next level substrate in a flip chip mode using flexible conductive adhesive having a low modulus of elasticity. The flexible conductive adhesive is applied as conductive bumps on the contact pads of the substrate or on the contact pads of the semiconductor chips and is a flexible thermoplastic or thermosetting resin filled with electrically-conductive particles. Other electronic devices, such as packaged components including resistors, capacitors and the like, are bonded with the same flexible conductive adhesive bump approach as is employed for the semiconductor chips. The contact pads of both the chip and the next level substrate are preferably passivated with a metallic coating, preferably a precious metal, prior to interconnection to inhibit oxidation of the pads.

Abstract: An adapter to connect either Type I or Type II cards into a PCMCIA compliant PC Card interface on a personal computer. A protective shutter mechanism receives both Type I and Type II cards.

Abstract: A financial transaction terminal is designed to receive both smart cards and debit cards and includes an access port for inserting or removing security modules such as SIM or SAM modules. A security switch arrangement is provided about the access port to protect the now accessible components of the terminal. Such a terminal provides the uncompromised physical security of a debit terminal with the flexibility and capabilities of a smart card terminal.

Abstract: A foldable retention mechanism includes a pair of bases, two retaining arm members and two locking members. The retaining arm members are attached to the corresponding base. Each retaining arm member defines a guiding slot. A locking member is positioned proximate a free end of each retaining arm member. Each retaining arm member defines a receiving space for engaging with a corresponding projection of a heat sink.

Abstract: The present invention provides a method for mounting an element on a chassis. The method comprises several steps. The element is stopped from sliding in at least one direction when the element is placed on the surface of the chassis. A clip is pivotably connected to the chassis. The clip pivots between first and second position holding the element in place in the second position. The clip is locked in the second position.

Abstract: A data storage module and enclosure system generally comprising a data storage module enclosure and a plurality of data storage modules. The module enclosure includes top and bottom guide plates that define a plurality of data storage module bay slots. Normally, the top guide plate includes a plurality of compliant tabs that are adapted to engage the data storage modules when fully inserted, and a lock rail that is used secure the module in place within its bay slot. The data storage modules each include a data storage device, such as a disk drive, and a module carrier. The module carrier includes a canister having an open configuration. Normally mounted to the front side of the canister is a bezel which is contoured to fit the user's hand and which includes a finger cavity that facilitates carrying of the module.

Abstract: An apparatus and method for mounting a disk drive such as a hard drive, floppy drive, or CD-ROM drive to the chassis of a computer. No tools or conventional fasteners such as screws are required to install or remove a disk drive. A combination of members, including shear connectors and a deformable member, are employed to secure a disk drive.

Abstract: The present invention provides a locking device having a simplified and energy saving configuration that assures to prevent an unintentional erroneous removal of a container case in operation mode from an apparatus main body. The locking device comprises: first engagement device which is an engagement hole 10 provided in an electronic apparatus main body 1; and second engagement device provided in a disc container case 2 that is inserted into and removed from the electronic apparatus through an opening 1a of the electronic apparatus main body 1. The second engagement device includes a movable engagement piece 21 constituted to be movable toward the engagement hole 10 and a movement urging mechanism 23 for urging this movable engagement piece 21. This movement urging mechanism 23 consists of a working member 23A made from a shape-memory alloy that change its distance from a first end to a second end when subjected to a heat; and a fixed base 24 for fixing the second end of the working member 23A.

Abstract: A secure electronic data module containing a monolithic semiconductor chip of the type having a memory that is protected by a combination of hardware and software mechanisms such that unauthorized access to the data stored in the memory is prevented. The monolithic semiconductor chip comprises a plurality of solder bumps for attaching the chip to a substrate that may be a printed circuit board or another chip; a multi-level interlaced power and ground lines using minimum geometries; and a detection circuit block for detecting an external trip signal that may be produced by a pre-specified change in an operating condition brought on by unauthorized accessing, or an internal trip signal that may be produced by shorting of power and ground lines or by a change in an oscillator's frequency, also associated with or appurtenant to unauthorized accessing of the secure memory.

Abstract: A method and apparatus for mounting a motherboard to a chassis of a personal computer using only a single screw. A number of standoffs snap into the base of the chassis, electrically contacting the chassis. Each standoff includes a projection. The motherboard includes apertures for accepting the projections such that when an ramp and shelf of each projection is aligned with the motherboard, the motherboard is positioned a fixed distance from the chassis. A mounting bracket also includes a number of projections. Apertures provided in the motherboard correspond to the projections of the mounting bracket. The surface of each side of the motherboard surrounding each aperture is plated with an electrically conductive material to form a conductive path between the motherboard and the standoffs and the bracket. The projections of the bracket are inserted into the corresponding apertures in the motherboard. A screw is inserted through a wall of the chassis and into a threaded hole in the bracket.

Abstract: A lever plate pivotally mounted on a bottom case of a main body of a computer including an extension, rotatable against a pack assembly to discharge same from a computer housing, and a deflectable detent lug selectively engageable with the pack assembly.

Abstract: The invention consists of a process to form low stretch-deep draws on metal sheet; it foresees an initial stage through which a sequence of thread-like cuts (2) are carried out on the metal sheet (1) corresponding to the surface that will be drawn, whose cuts (2) on the adjacent lines are offset compared with each other, a stage in which the metal sheet (1) is stretched, through which stage the opening of the cuts (2) is obtained, therefore an ample widening of the cut surface and a minimum stretching of the non cut surface and of the oblique stripped metal network, separating the empty spaces (3) obtained through the widening of the thread like cuts (2), and where necessary, a stage in which the metal sheet is bent along a line which allows, on the overlapped surfaces, the open spaces of one surface to correspond to the strips on the other surface in order to reduce or close the width of the spaces in order to reduce electromagnetic interferences.

Abstract: A surface mount package for containing a board-mounted power supply, a method of manufacturing the same and a board-mounted power supply employing the package. In one embodiment, the package includes: (1) a plurality of leads having first ends and second, surface mount ends, (2) a dielectric lead frame that retains the plurality of leads in predetermined positions relative to one another such that at least some of the second, surface mount ends are co-planar, the first ends couplable to the board-mounted power supply, (3) a shell, coupled to the lead frame, that forms a portion of a periphery of the surface mount package and (4) potting material located between the lead frame and the shell.

Abstract: A housing unit (302) includes a latching mechanism (106) having a cylindrical head (202), a cylindrical rod (204), a cam (206), and a catch (208). The latching mechanism (106) is rotatably mounted in the housing unit (302). The catch (208) and a cam surface (216) of the cam (206) are rotatably exposable through an opening (164) on the housing unit (302) and the cylindrical head (202) is exposed through a circular opening (314) on the housing unit (302). When a battery door cover (102) meets with the housing unit (302) for attachment, a catch (118) of the battery door cover (102) rides the cam surface (216) to rotate the latching mechanism (106) until the catch (208) locks with the catch (118).

Abstract: A stacked container assembly includes a variable number of stacked modular containers, and an engaging unit and a fastening unit provided on each container to permit the containers to connect with one another. The container assembly holds an electrical power supply assembly which includes a plurality of electrical power supply units respectively received inside the stacked containers, and an electrical control device electrically connected to the electrical power supply units and received inside a control box mounted on the top or bottom of the stacked containers.

Abstract: A connection structure between a disk drive housing and a rack to eliminate a source of vibration, and hence improve the performance of the disk drive. An interference-fit tab and slot vibration reduction structure is described, where the tab is formed on the housing and the slot is formed on the shelf. The tab and slot vibration reduction structure includes a disk drive having an outer housing, the housing having a bottom surface. A tab extends from the bottom of the housing. A shelf is provided on the rack system for receiving one or a plurality of disk drive housings, and one slot is formed in a front edge of the shelf for each drive housing. When the disk drive housing is positioned on the shelf with the tab positioned in the slot to create an interference fit, the housing is rigidly attached to the shelf.

Abstract: A device with components arranged on a p.c. board and attached by connector contact pads, fasteners for additionally fixing the components in place, and at least one connector strip positioned above the p.c. board surface and attached to the p.c. board, with the fasteners being structural elements molded on the connector strip, and at least one component being arranged and fixed in place between the structural elements and the p.c. board.

Abstract: An electronic circuit module having a metal cover is provided for interconnecting with a host device. The module includes an interface whereby electronic signals can be exchanged between the module and the host device. A mechanism for electrically grounding the metal cover to the ground plane of a printed circuit board housed within the module is provided along with a device for connecting the ground plane of the printed circuit board to a signal reference ground potential supplied by the host device. The present invention includes a module frame for attaching the metal cover thereto. A printed circuit board, including a ground plane, is mounted within the frame. A connector having a plurality of contact elements electrically connected to various the circuits disposed on the printed circuit board, including at least one contact element electrically connected to the ground plane is also adapted to fit within the module frame. The connector includes at least one grounding member.

Abstract: The invention comprises a retention system for retaining a component within a housing, the system having a body to receive the component therein. The body has a bottom wall against which the component will be mounted. A resiliently deflectable latching arm extends upwardly from the bottom wall. The latching arm has a lower section, an angled section, and a latching section. The angled section has an opening therein. The latching section offset section has a latching surface. The opening receiving a latching tooth therein and the latching surface engaging the latching tooth to secure the component.

Abstract: Transportable, medical construction unit with a casing for receiving essentially electronic components with at least two casing parts surrounding the components. For the connection of adjacent casing parts rings are shaped onto the inner wall of the casing parts and coincide with the rings of the adjacent casing part. Locking pins are passed through coinciding rings arranged in aligned manner on a casing wall formed from the two partial casing walls. This ensures a reliable, mechanical connection of the casing parts with a minimum space requirement for the connecting elements.

Abstract: A compact electronic apparatus includes a base unit having a bottom wall and a side wall, an attachment recess having a bottom opening portion formed in the bottom wall of the base unit, and a battery pack to be fitted in the attachment recess from the bottom opening portion. The battery pack has a size slightly shorter than the attachment recess and is slidable in the attachment recess by a predetermined distance substantially equal to the difference between those lengths. A side opening portion continuous to the bottom opening portion and open to the side wall is formed in one end of the attachment recess. First engaging portions are provided at the side opening portion, and second engaging portions at the far end portion of the attachment recess. The battery pack is provided with third engaging portions and fourth engaging portions, which engage with the first and second engaging portions, respectively, when the battery pack is slid in the attachment recess by the predetermined distance.

Abstract: A series of hard disk drives are secured atop molded plastic support trays slidably and removably received in opposing guide channel member pairs snap-fitted into opposite side walls of a sheet metal cage structure externally used in conjunction with a file server or other computer device. Snap-fitted into rear end portions of the trays are small printed circuit boards that are insertable into hot plug sockets at the rear of the cage. Forwardly projecting guard plates on the rear end of the cage block manual access to the board/socket interface, and the surface mounted grounding leads on the board extend rearwardly beyond its signal leads to enhance grounding safety during disk drive installation and removal. At the front end of each tray is a vertical support plate upon which LED indicating lights are conveniently mounted for the associated disk drive.