Abstract: An assembly for dissipating heat generated by electronic components which include a ventilating panel having a plurality of vent holes arranged thereon. More specifically, the perforation pattern of vent holes is staggered to provide adjacent larger and smaller vent holes in at least two rows of vent holes. A second row of vent holes is staggered with respect to the first row of vent holes such that the larger vent holes are aligned with smaller vent holes, preferably in a ratio of two smaller vent holes per one larger vent hole. Such a perforation arrangement of vent holes may be provided on a blindswap cassette for securing and aligning computer cards for mounting in a housing, such as a sled for use in computer systems.

Abstract: A low profile auto docking multi-battery pack system and an in place service PCI storage controller card system with redundant cache and concurrently maintainable redundant battery backup are provided. A first battery and a second battery are disposed in line to provide a low profile battery pack. The first battery and second battery are shrink-wrapped together inside a frame and are slideably removable through an opening in a PCI tailstock and are hot swappable. The PCI storage controller card system is defined by a two card assembly that includes an internal connector, such as a SCSI connector to connect the two cards together.

Abstract: An assembly for use in providing EMI shielding for a circuit card. The assembly comprises a circuit card; a fastener; and, a shielding apparatus. The shielding apparatus comprises: a body providing EMI shielding and includes an attaching portion extending therefrom, wherein the attaching portion has a segment at a proximal end portion thereof which blocks an opening in the body for controlling EMI leakage and positions the attaching portion so that a fastener can fasten the attaching portion to a circuit card such that a first fastener end portion is engageable in juxtaposed relationship with a first card surface and a second fastener end portion terminates so as not to extend generally beyond a predetermined distance from a second card surface of the card.

Abstract: A parallel-plugged planar sandwich arrangement for a computer system includes a first printed circuit board having a first electrical connector on a surface thereof, and a second printed circuit board having a second electrical connector on a surface thereof. The second electrical connector is electrically mated to the first electrical connector, to electrically couple the first printed circuit board to the second printed circuit board. A stiffener panel is disposed between the first printed circuit board and the second printed circuit board. A disengagement mechanism is attached to the panel and includes a cam assembly that has a cam rotatable about an axis of rotation, a cam pin projecting out from opposite sides of the cam and being coaxial with the axis of rotation, and a torsional helical spring disposed around the cam pin for automatically rotating the cam in a first direction. A handle is attached to the cam.

Abstract: An enclosure arrangement includes a chassis, and a central electronics complex. The central electronics complex has a cage removably positioned within the chassis. The cage has an open top providing access into the interior of the cage. The central electronics complex also includes a backplane arranged in a horizontal position, and forming a floor of the cage. The backplane has at least one card slot on a surface thereof. The central electronics complex further includes at least one circuit board disposed in the interior of the cage and being removably received by the card slot. The circuit board is arranged in a vertical position so that a gravitational force helps retain the circuit board in the card slot. The cage is removably positioned within the chassis. At least one rail connects the cage to the chassis. The cage is disposed on the rail, and is guidable into the chassis using the rail.

Abstract: A data storage disk drive is provided with a spindle which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft geometries for mounting the spindle motor shaft and the actuator bearing shaft. The enclosure includes a base casting and a cover casting, each casting including structure for locating and retaining electrical connectors used for connecting to a planar electronics card located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb. The disk drive includes a tubular chemical breather filter arranged with integral housing and diffusion channels formed in the cover casting.

Abstract: A lever and latching arrangement having a pair of camming surfaces disposed on one end thereof is attached to one end of a tailstock member of an electronic memory book or central electronic complex book of a computer. This lever arrangement, as rotated about a pivot axis, engages one of the camming surfaces with a portion of the computer frame; the mechanical advantage of the lever system overcomes the large forces required to connect or disconnect the electronic book from the computer connectors. The pivot axis is positioned between the side rail of the book and the computer frame and between the tailstock and the connectors of the book to afford a low profile relative to the tailstock, permitting a more efficient use of available volumetric space within the computer.