Abstract: A modular computer chassis constructed with a center pluggable interface adapted for the modular mounting of components on opposite sides thereof. The chassis includes frontal and rear regions which are open and adapted for receipt of modular computer components therein for direct coupling to the center pluggable interface. An isolation frame is also provided within the chassis for physically and electrically isolating select components therein one from the other. A slidable mounting array is also provided for facilitating flexibility in the mounting of half height and one-third height disk drives adjacent to the center pluggable interface for flexibility in the design and utilization of the chassis of the present invention.

Abstract: A power supply assembly for use in a desktop computer is disclosed. The power supply assembly includes a frame consisting of a base plate, two side plates connected with the base plate and a connector sub-assembly attached to the base plate. Each of the side plates defines a tenon along its length. The connector sub-assembly includes a printed circuit board attached to the base plate, a power supply connector defining a first connecting side for connection with a power supply, a first golden finger contact and an expansion connector defining a second connecting side for connection with a second golden finger contact on another connector sub-assembly of another power supply assembly. A power supply has two side walls each defining a mortise fittingly engaging with a corresponding one of the tenons of the side plates of the frame and a third golden finger contact in connection with the first connecting side of the power supply connector.

Abstract: A mounting assembly for use in mounting electronic components into a housing. The mounting assembly includes a plate mounted in spaced relation to a wall of the housing, and a catch formed in the wall near the plate. An electronic component carrier is slidably mountable to the plate. The carrier has a fully removed condition in which the carrier is separated from the plate and an installed condition in which the carrier is mounted to the plate and is within the housing. A latch member is hinged to the carrier and is pivotable relative to the carrier between an opened condition in which the latch member extends longitudinally from the carrier and a closed condition in which the latch member extends angularly from the carrier. When the carrier is in the installed condition and the latch member is pivoted to the closed condition, the latch member engages with the latch to lock the electronic component into place within the housing.

Abstract: A hard disk case mounting structure includes an auxiliary stop bar provided at either side of a front end of a hard disk frame for preventing a pull handle on a case of the hard disk frame from being forcefully pulled up, thereby protecting the hard disk lock. Besides, the relative movement between the pull handle and the auxiliary stop bar may result in a counter force between the case and a mounting frame to cause two connecting ports to be separated to permit smooth removal of the hard disk.

Abstract: An injector/ejector mechanism with a lever pivotally connected to a module faceplate to pivot about a pivot axis. The lever has a handle extending away from the faceplate, and a latch portion extending away from the faceplate in a direction opposite the handle portion. The latch portion includes a first tooth and a second tooth, the first tooth being positioned farther from the faceplate than is the second tooth, The lever is movable between a first position in which the first tooth extends laterally from the pivot axis by a limited first amount, and a second position in which the first tooth extends laterally from the pivot axis by a greater second amount, and the lever is spring biased toward the first position.

Abstract: An appliance such as a personal computer includes a metal chassis which comprises a main chassis section and a subchassis hingedly connected to the main chassis section for rotation about a horizontal axis between folded-in and folded-out positions. The subchassis carries operational components such as a power supply and a drive, and the main chassis section carries an operational component such as a motherboard. When the subchassis is in its folded-in position it overlies the motherboard and blocks access thereto, and when in its folded-out position the subchassis provides access to the motherboard. In its folded-in position the subchassis sits upon horizontal edges of the main chassis section.

Abstract: A mounting assembly for mounting a component in electronic equipment, such as a computer system, which includes an enclosure and a mounting bracket pivotally mounted to the enclosure. One or more retaining members are disposed on the bracket for engaging the component to retain the component in the bracket in abutting relationship. The bracket, and therefore the component, are connected to the enclosure so that they can be pivoted between a position in which the component is mounted in the enclosure and a position in which it extends out of the enclosure. In the mounted position, the bracket forms a portion of one or more walls of the enclosure.

Abstract: A miniaturized manportable tactical workstation that has a single power supply that provides power for all of the electronic components thereof. The portable workstation includes a housing having a rotatable top cover that houses a display panel. The top cover is opened to expose a screen of the display panel. The housing encloses a hard drive receiver into which a removable hard drive is inserted. A two-slot VME processor box is disposed in the housing and receives a VME processor card that is slid into the VME processor box from one side of the workstation. An air filter and a fan are disposed in the housing and draw air through the housing to cool the electronic components of the workstation. A keyboard is provided that is exposed to a user when the top cover is opened to expose the display screen. The single power supply provides supply voltages and timing signals to the display panel, the keyboard, the VME processor card, the hard drive, and the fan.

Abstract: An appliance such as a personal computer includes a metal chassis which has a first section, and a second section mounted on the first section. The first chassis section forms a first space in which a motherboard is mounted. The second chassis section forms a second space in which a disk drive is mounted. The second chassis section defines a shield resisting the passage of electromagnetic waves between the first and second spaces to isolate the motherboard from a disk opening for the disk drive thereof.

Abstract: A computer, or other similar type of electronic device including a chassis, and one or more disk drives mounted in the chassis. A mounting bracket for receiving a disk drive is mounted to the computer chassis and is precisely located relative to a wall of the chassis. A mounting plate for receiving another disk drive is mounted relative to the bracket and to the chassis and is also precisely located relative to a wall of the chassis and to the bracket.

Abstract: A computer system with an externally accessible bus system having pairs of card slots and bus receptacles for repeatedly installing and removing modules includes one or more peripheral modules containing peripheral devices and having one or more pairs of sliding flanges and a connector for engaging one or more card slot pairs and corresponding bus receptacles. The peripheral modules have a peripheral interface port on an externally accessible front panel for externally connecting the peripheral devices within the module to other modules in the computer system.

Abstract: A computer which includes modular structures incorporated therein provides enhanced serviceability. In a preferred embodiment, the computer has a chassis, a lid, a front bezel, an option card module, a system board module, a drive module, and a power supply module. The lid secures the option card module within the chassis. The option card module is removable from the chassis without disconnecting fasteners, option boards, or external cables therefrom. The system board module is received in the chassis and is secured therein by the option card module. The drive module has features which enable storage media devices to be conveniently installed therein and removed therefrom.

Abstract: A chassis of a desktop personal computer where the cover can easily be assembled onto or removed from the base by a user without the use of screws or tools. This allows the user to gain easy access to the electrical components inside the chassis. The design of the base and the cover incorporates a set of guide pins to be inserted into a corresponding set of guide holes in order to properly position the cover onto the base. Then, the cover is fastened to the base by rotating a buckle pivotally attached to the cover to the base so that it engages the base. Finally, a slidable detent located on the cover can be slid onto the buckle, preventing the buckle from inadvertently becoming unfastened. To disassemble the cover from the base, the process is simply reversed. First, the detent is slid of the buckle, allowing the buckle to rotate. Next, the buckle is disengaged from the base by pivoting it open.

Abstract: A multi-positionable power supply mounting hinge device includes first and second chassis members. The second chassis member is movably connected to the first chassis member. A bracket is fixedly mounted on the first chassis member. A flexible hinge detent member is connected to the second chassis member and extends to movably engage the bracket. The hinge detent member includes a wavy surface of sequentially variable protrusions and depressions. The wavy surface is in continuous friction engagement with the bracket in response to the hinge member being deflected when the second chassis member is moved relative to the first chassis member.

Abstract: Apparatus for securing a computer cover to a computer chassis is disclosed. In a preferred embodiment, a computer cover and computer chassis include a latching mechanism with components attached to each. The cover includes a button and a stop located adjacent to the button. The chassis includes a leaf spring so that, when the cover is closed onto the chassis, the leaf spring engages with the stop, thereby securing the cover to the chassis. Likewise, whenever the button is being depressed, such as by a user, the button pushes the leaf spring away from the stop. As a result, the cover is no longer secured to the chassis and can be easily opened from the chassis.

Abstract: A hard disk converting drawer structure including a drawer and a fixing seat. A pull handle is back and forth slidably disposed at the front end of bottom side of the drawer. A transverse beam is disposed between two balance levers of the pull handle for back and forth pulling an auxiliary lever to press and close/open a touch switch. When the touch switch is pressed and closed, the auxiliary lever is forced by a leaf spring disposed on one side to retract the pull handle to a hidden position. When the touch switch is bounded open, the pull handle is pushed and ejected for a user to easily pull out the pull handle. When pulling the pull handle, the auxiliary lever is driven to push a stopper block projecting from one side of the fixing seat so as to smoothly draw out the drawer from the fixing seat for taking out the hard disk.

Abstract: A docking station box for functional expansion of portable electronic equipment that has a table with a vertically upstanding back wall to which is mounted a part of a connector corresponding to a connector part of the electronic equipment. The box includes at least one hook that is moved from a position below the table to one above the table to engage the electronic equipment to mount it securely thereon. The docking station box also includes a mechanism for thrusting the electronic equipment away from the position in which the connector parts of the box and the electronic equipment are engaged.

Abstract: A hard diskdrive address adjusting device is provided which includes a plurality of rotary binary DIP switches respectively mounted on the hard diskdrives of an array hard diskdrive system. The rotary binary DIP switches adjust the address of each hard diskdrive. Each hard diskdrive of the array hard diskdrive system has a plurality of jumper terminals arranged in two rows, the jumper terminals of one row being connected in parallel with the contact C of the respective rotary binary DIP switch. The jumper terminals of the other row of each hard diskdrive being respectively connected to corresponding contacts of the respective rotary binary DIP switch.

Abstract: This invention packages option devices, such as floppy drives and hard disk drives, within an enclosure, thereby providing EMI/RFI shielding, promoting unimpeded option device electronic signaling, and reducing wasted space within an enclosure, such that small enclosures may encase the components. This invention includes a cage, for holding option devices, that is groundingly mounted in spaced relation to the major surface of a logic board, and an option device bracket that is slideably mounted within the cage. Each of the option device brackets contains one option device.

Abstract: A computer system electromagnetic interference (EMI) shield housing is bolted on a rack for allowing simplified access to modules and circuit boards mounted to a chassis which is slidably mounted to the interior of the housing. EMI gasketing is mounted integral with and extending around the perimeter of a first access opening of the housing and a rear access opening of the housing. A front panel and a rear panel of the chassis provides EMI shielding when the chassis is fully recessed within the housing. The chassis can be extended beyond the housing a distance adequate to allow access to all aspects of computer system modules and to cables at the rear of the chassis. A hinge mounted to the rear of the chassis and to the interior rear of the housing in conjunction with a cable trough and conduits located on the hinge allows power and input/output (I/O) cables to move outwardly and extend with the chassis.

Abstract: A drive bay module for a computer cabinet holds multiple peripheral drives. The drive bay module is easily uncoupled and rotated within the computer cabinet so that the drives remain in a upright orthogonal orientation whether the cabinet is positioned vertically or horizontally and the user does not have to rotate each individual drive separately. In addition, the drive bay module can be positioned toward either end of the computer cabinet. In an alternate embodiment, the drive bay module can be positioned and secured at any one of a plurality of angles within the receiving bay.

Abstract: This invention is a system for self guiding interengagement of a securement member within a mating member having a slot for holding and securing two surface areas. The securement member is attached to one surface area and the mating member is attached to the other surface area. The securement member has a shape and the mating member has a tongue with a guiding surface, thereby promoting self guiding interengagement of the securement member within the slot of the mating member. The system is convenient for inserting a board within the obstructed view of a receptacle, such as a computer enclosure.

Abstract: A computer includes a main enclosure for housing a plurality of computer components. A subenclosure or card cage for housing a planar circuit board, including a CPU, and at least one accessory board may be removably secured within the main enclosure, wherein the subenclosure, planar circuit board, and accessory circuit board may be selectively removed from the main enclosure as a unit. A connection device is provided to releasably electrically connect at least the planar circuit board to one of the computer components housed within the main enclosure.

Abstract: An enclosure or chassis for a high-performance personal computer which is portable, provides easy access to its internal components for servicing, and provides mechanisms which allow peripheral devices such as hard disks, floppy disks and CD-ROM drives to be quickly and easily installed and removed. The chassis provides an efficient cooling mechanism so that a heat sink required for a high-performance processor can be smaller than would be the case without such efficient cooling mechanism. The chassis opens up into a top portion and a bottom portion. The top portion houses the peripheral devices, and the bottom portion houses the motherboard, power supply and cooling fans. A tamper switch is provided which monitors the state of the chassis (open or closed) and reports over a network whenever the chassis is opened. However, the computer can still be operated when the chassis is opened for inspection, service and repair.

Abstract: A socket for attaching a flip chip die or ball grid array devices to a printed circuit board substrate having a pattern of solder covered lands, with resources for removing the flip chip die or ball grid array device, resources for directly aligning the solder balls of the flip chip die or ball grid array device to the printed circuit board, resources for using an interposer of dendrite coated vias or pads to electrically and physically connect the solder balls of the flip chip die or ball grid array devices to the solder deposits of the printed circuit board, resources for having the interposer reconfigure the wiring for testing or replacement purposes, resources for utilizing the flexibility and resilience of the interposer to improve dendrite connections, and resources for heat sinking the flip chip die or ball grid array device by direct thermal contact.

Abstract: Method and apparatus for quickly and easily securing a computer device, such as a floppy disk drive, to a device carrier. In a preferred embodiment, the carrier contains a plurality of dowels that align with pre-existing screw holes on the device. When the device is placed into the carrier, a first dowel attached to a bottom panel of the carrier is inserted into a first screw hole of the device. The device is thereby partially secured to the carrier. The device is further secured to the carrier when both the device and the carrier together are inserted into a computer bay. As the carrier enters the computer bay, a second dowel flexibly attached to a side panel of the carrier is inserted into a second screw hole of the device. Therefore, whenever the device and carrier are in the computer bay, the device is completely secured to the carrier.

Abstract: A rapid assembly electronic device includes a housing and a chassis which snap together and are movable relative to one another between a closed position and a position in which a battery compartment on the chassis is accessible from the outside. The chassis is separable from the housing by the use of a pointed tool. A resilient clip is received in a receptacle on the housing, the clip being held in place by resilient engagement with the housing in three ways. The electronic device is operated from the exterior by a resilient element mounted in an opening in the housing and without a physical connection between the resilient element and any parts which are movable with the chassis.

Abstract: Icon indicia are provided on input, output and plug-in power processing units to permit proper matching of plug-in units with each other and with the input and output power processing units in a power distribution system. The indicia are in a co-ordinated matrix format with input icons on a designated chroma background to identify input voltages and output icons on a second designated chroma background to identify output voltages. Icons and background chroma on the plug-in power processing units are coordinated with related icons and background chroma at the same matrix position on other plug-in units and/or the input and output units to assure the compatibility of all the units. A craftsman inserting a plug-in unit onto a shelf of the power chassis need merely compare the unit's icon and chroma background indicia with the input, output, or other unit's icons and associated chroma background indicia to be assured of inserting the correct plug-in unit into the particular shelf.

Abstract: A modular lamp power supply is adapted to provide lamp power supply signals to a plurality of different lamps, each lamp having different power requirements. The power supply can be reconfigured to supply power to a new group of lamps simply by replacing the power circuit modules within the supply chassis.

Abstract: A module for an equipment rack in a wireless communication system wherein the functions of power filtering, distribution, and limitation are integrated into a single module whose wiring is both simplified and standardized. The module comprises a filtering capacitor and several circuit breakers which are arranged in parallel with a busbar providing the filtered current. The tripping current of each circuit breaker is set to safely provide power to a branch circuit of the equipment rack which the module serves. A terminal in the rear of the module connects it to the rack as the module is inserted. The replacement module has the same quality control standard as the rest of the equipment and the down time of the wireless system network is reduced.

Abstract: A portable computer assembly includes a portable computer and a receptacle adapted to hold the portable computer. The portable computer assembly further includes a base for supporting the receptacle. Moreover, the portable computer assembly includes a latch for latching the receptacle to the base. Additionally disclosed is a method of removing particulate from a portable computer storage system which includes a receptacle, a base, and a locking mechanism.

Abstract: A drawer slide which is capable of moving in and out of the housing of a computer or other electronic apparatus is configured to receive an interface card which is connected into the circuitry of the computer when the drawer slide is in a fully inserted position. The drawer slide rides in a drawer guide which is secured to the computer structure. An interface connector is mounted on the drawer guide and engages a connector on the interface card for connecting the interface card to the remainder of the computer circuitry. A key lock mechanism prevents unauthorized movement of the drawer slide and the associated interface card out of the computer housing.

Abstract: A personal computer includes a frame unit and a top cover mounted to pivot upward and outward to the rear of the system, or alternately, upward to the side. One or more DASD storage devices may be mounted to extend downward from the top cover. A planar board is attached atop the lower side of the frame unit, where flexible mounting hardware allows the attachment of one of several types of planar boards. A central support structure includes a riser card plugged into a connector of the planar board, and a number of card connectors into which option cards can be plugged for electrical connection with the planar board. The central support structure also includes a bracket extending along the rear of the computer, having slots through which port connectors of the option cards can extend. The central support structure is held in engagement with the connector of the planar board by the top cover when this cover is closed.

Abstract: The present invention relates to an improved apparatus and screwless method for rack mounting an independent rail to a peripheral electronic component or primary rail. First, a spring-urged elongated arch having a convex surface and a concave surface is engaged by depressing the convex surface, the arch further having an engaged state and disengaged state, two legs, each of the legs being placed at an opposite end of the concave surface and angled inward of the arch. Second, the two legs are individually directed through two apertures in the independent rail. Third, the two legs are subsequently directed into two apertures in the peripheral electronic component. Finally, when the convex surface is released, the two legs retract and clamp the peripheral electronic component within the apertures of the peripheral electronic component.

Abstract: Disclosed is a rack pair for mounting speakers and system board in a monitor of a computer system being mounted behind a front frame of the monitor at two lower or upper corners thereof so that a distance left between the rack pair is substantially equal to a width of a system board disposed inside the monitor. The rack pair are characterized in that the rack each is formed at an inner side with a longitudinal groove which has a width slightly larger than a thickness of the system board to clamp the system board between the rack pair, that the rack each is provided with a connecting device extending toward a display tube in the monitor to connect a speaker cabinet member, and that a locater is provided at a lower portion of each rack for engaging with a fixing device provided behind the front frame of the monitor so that the rack pair for mounting speakers and system board can be firmly mounted in the monitor for the speakers to be mounted in the monitor together with the system board.

Abstract: Device modules of an electrical system are slidably fitted in an enclosure and integrated therein as a part of an air duct system for cooling the modules. Other modules such as air mover modules, for the air duct system, are also slidably fitted in the enclosure to move air in the air ducts and the device modules. Each module carries a pivotally mounted flat latch lever in a recess in a surface at one end of the module. A latch member on one end of the latch lever engages a catch member on the enclosure as the module approaches its fully inserted position. Movement of the latch lever to latched position, when the latch member and catch member are engaged, pivots the latch lever about the catch member and applies force to the module at the pivotal mount, to drive the module into its fully inserted position. The mechanical advantage provided by the latch lever minimizes the manually applied forces acting on the module which significantly reduces the likelihood of damaging any device within the module.

Abstract: A hard-disk drive tray assembly includes an adapter, a tray, and a bezel. The adapter and tray are designed with slots and protrusions such that the adapter can be secured to the tray without the use of tools, screws, or nuts. The bezel pivots horizontally about the tray and comprises at least one incorporated inserter/extractor lever thereby allowing a user to insert and extract the hard-disk drive tray assembly using just one hand. The bezel has a built-in handle which allows a user to securely grasp onto the hard-disk drive tray assembly during transportation from one location to another. Furthermore, the bezel comprises a translucent or transparent LED display window for providing an external means of visually monitoring the typical LED status indication light which is integral to the hard-disk drive without having to run additional wiring from the hard-disk drive to an externally mounted LED light.

Abstract: A storage drawer system for use hi conjunction with any standard computer that makes use of empty drive bays for the purpose of conveniently storing computer and non computer related items, such as disks, CDs and manuals. The storage drawer system comprises a drawer that can be opened and closed, and a housing to support the drawer operation and to prevent any foreign object from entering the internals of the computer.

Abstract: A modular automotive audio system includes a controller housing and an amplifier housing to be mounted within the vehicle trunk and a remote control for use within the passenger compartment. Modular signal processing components are received within the controller housing, and modular amplifier components are received within the amplifier housing. A controller module within the controller housing provides control for all signal processing components. The controller module polls all positions within the controller housing to determine which components are installed, and then the controller module configures itself via software to provide the control functions. Optionally, non-audio electronic components can also be received within the controller housing for common control by the system.

Abstract: An adjustable housing or chassis for electronic devices specifically intended for mounting in panels of unknown and variable thickness, for example, in the panels of aircraft. The chassis includes base and cover members that telescopingly mate to form a complete enclosure for electronic printed circuits therein. The chassis members include plural flanges and/or sidewalls to create a self-interlocking chassis in which the cover is restrained from lateral and vertical movement on the base. The cover is axially adjustable on the base to thereby expose more or less of the electronic controls as dictated by the thickness of aircraft panel.

Abstract: In an electronic device in which a control unit is detachable from an equipment body, the control unit is engaged and detachably secured to the equipment body by a locking member and a temporary retaining member. A lock release unit causes the locking member to disengage the control unit. When the locking member disengages the control unit, the temporary retaining member retains the control unit and causes the control unit to protrude from the front of the equipment body. Thus, the control unit is temporarily retained by the temporary retaining member in the protruding position and is not allowed to fall off the equipment body onto the ground or floor. In addition, since the operating member is moved to a position where it protrudes from the front of the equipment body, the control unit is easy to remove by hand.

Abstract: A telephone distribution frame element, of the type including firstly a plurality of input connectors (14E) and output connectors (14S) disposed in rows, and secondly at least one filtering and/or protection module (17) to be inserted between the input connectors (14E) and the output connectors (14S), with channels (16) suitable for guiding the corresponding link wires being associated with the output connectors (14S). According to the invention, the channels (16) associated with the output connectors (14S) in the same row (20) are grouped together inside a guide plate (21) which extends on edge and in alignment with the row (20), and each of the rows (20) of input connectors (14E) and output connectors (14S) aligned in this way with the guide plates (21) is flanked on one side by a passage (22) in which a filtering and/or protection module (17) can extend. Application, in particular, to connection strips.

Abstract: In an electrical system consisting of individual subassemblies, particularly in a control system composed of modules, the individual subassemblies (1, 2) comprise housings, which are adapted to be arranged in a row and for making electric line connections are provided with plug terminals for counterplug terminals on a subassembly carrier. The housings (1, 2) are secured to the subassembly carrier (4) by detachable retaining elements (27, 30, 34), particularly by swivel holders Which permit the housings to be swung up, and by snap holders (27, 28) for locking the housings when they have been swung into the row.

Abstract: A personal computer includes a frame unit and a top cover mounted to pivot upward and outward to the rear of the system, or alternately, upward to the side. One or more DASD storage devices may be mounted to extend downward from the top cover. A planar board is attached atop the lower side of the frame unit, where flexible mounting hardware allows the attachment of one of several types of planar boards. A central support structure includes a riser card plugged into a connector of the planar board, and a number of card connectors into which option cards can be plugged for electrical connection with the planar board. The central support structure also includes a bracket extending along the rear of the computer, having slots through which port connectors of the option cards can extend. The central support structure is held in engagement with the connector of the planar board by the top cover when this cover is closed.

Abstract: For cooling a plurality of device modules mounted in an enclosure, a redundant air moving system is coupled to the air duct system of the enclosure. The redundant air moving system has two, three, or more air movers. If one air mover fails, the remaining air mover(s) still provide the required air volume rate for adequate cooling. To make the air movers redundant, they are coupled in parallel to a common air plenum in the air duct system from which ducting to all devices to be cooled is provided. In case of an air mover failure, a flapper door is built into the exhaust path of the air mover. The flapper door is pendulously pivoted in the exhaust path. It is held open by exhaust air flow and is closed by gravity upon cessation of exhaust air flow and held closed by reverse air pressure for the purpose of preventing reverse air flow in the exhaust path, which would disrupt the air pressure in the air plenum and consequently also in the air duct system.

Abstract: An enclosure for cooling device modules has metered air passages in an air duct system. The device modules which are of the form of air ducts are inserted into the air duct system of the enclosure and have exhaust air passages which are coupled to metered air passages in the air duct system of the enclosure. A source of reduced air pressure which is coupled to the air duct system of the enclosure draws air through the device module into the air duct system of the enclosure via the exhaust air passage of the device module and the metered air passage of the air duct system.

Abstract: A structure of an interface seat for quickly engaging and disengaging with a back plate, an I/O port retaining plate, and a disk drive bracket on a computer base casing having a back plate, comprises an upper flange, an lower flange, and two side flanges. The back plate comprises a cut-out recess for disposing the interface seat. The upper flange of the interface seat is provided with an upper stop strip extended outward therefrom for abutting against the disk drive bracket. The lower flange is provided with a plurality of recesses for engaging with outward-inclined tabs provided on the top edge of the I/O retaining plate. Each of the side flanges is provided with a side stop strip extended outward therefrom for abutting against the back plate.

Abstract: A rack mounted computer system has a vertically elongated cabinet structure in which a specially designed server unit is mounted. The server unit includes a slide-out outer drawer having a power supply box mounted in a lower interior portion thereof. An inner tray is slidably mounted in an upper interior portion of the outer drawer, over the power supply box, and has a system planar board and associated riser cards mounted on its top side. When the outer drawer is pulled out service access is provided to the circuit board apparatus on the inner tray. Access is provided to the power supply box by simply sliding the inner tray rearwardly relative to the opened outer drawer to expose the power supply box. Cooling fans are carried on the inner tray and within the outer drawer to cool the various computer components mounted within the server unit by flowing cooling air generally horizontally therethrough.

Abstract: A multifunctional frame assembly for a personal computer includes a multifunctional frame having a speaker-engaged portion and a fan-engaged portion. The speaker-engaged portion has a pair of engaging members which define an opening. The fan-engaged portion has a surface with an orifice and a pair of stoppers each being provided with a pair of engaged hooks extending longitudinally and a pair of ribs on an inner wall of the stopper. A speaker is clamped between the engaging members and in alignment with the opening. A ventilating fan with a plurality of holes at the corner region thereof is installed between the ribs and in alignment with the orifice. A chassis of the computer having an end plate is provided with engaged holes corresponding to the engaged hooks of the stoppers, wherein the frame can be positioned by engaging the engaged hooks with the corresponding engaged holes on the end plate.

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.