Abstract: An electronic component (100) includes an electronic equipment enclosure (110), a plurality of electronic devices (121) inside the enclosure, air movers (130) capable of cooling the electronic devices, and a separate barometric vane dampers (201, 202) adjacent to each of the air movers. The electronic component includes N+1 air movers where N is a minimum number of air movers required to cool the enclosure. Additionally, each of the barometric vanes has at least one stop to limit its movement. Furthermore, the barometric vanes are contoured to direct air flow within the electronic equipment enclosure and are closeable by gravity when the air movers are stationary.

Abstract: A power supply includes a turn on circuit which coordinates turn on of all paralleled power supplies supplying power to an electronic system such as a computer system. Upon detecting that its input voltage is sufficient to turn on, the power supply waits for a delay period long enough to ensure readiness of any of the paralleled power supplies and then determines that it can start independently. Upon detecting bus voltage sufficient to ensure that another power supply has turned on, the power supply determines that another power supply has turned on. If either condition is determined, the power supply turns on and begins supplying power to the computer system. As a result, the first power supply to turn on will be detected by the other power supplies, and the other power supplies will turn on immediately thereafter.

Abstract: An attachment to a camera lens for creating a single slide transparency or photograph from two slide transparencies such that a before-and-after or combination picture can be formed on a single photograph or transparency comprising an enclosure formed from a plurality of opaque sides and one translucent side. An aperture is formed through one of the opaque sides and has a collar for connecting the slide duplicator to the camera lens. A slot located adjacent the single translucent side is used for engaging the slide transparencies that are to be photographed. Mirrors within the duplicator are arranged for reflecting and directing images formed from light rays passing through the translucent side and through the slides to the camera lens so that the camera can photograph the dual images onto a single transparency or photograph. First surface mirrors are used in lieu of regular mirrors for clearly and distinctly reflecting and directing the images.

Abstract: A radio frequency interference (RFI) gasket (10) to be used with a chassis (36) having slot panels for receiving electronic assembly boards therein wherein the RFI gasket comprises a metal bar (12) dimensioned to fit within slots of the the chassis and a metallic spring clip (14) that is contiguous with the metal bar and makes electrical contact therewith. The spring clip is compressed against the metal bar as electronic assembly boards are installed into the chassis to such that the RFI gasket makes electrical contact between the the chassis and the assembly board to inhibit RFI radiation.

Abstract: A ground plane interconnection system using multiple connector contacts interconnects ground planes between backplanes, between circuit boards or between backplanes and circuit boards. When a column or a portion of the column of contacts is allocated to the ground plane interconnect, the ground plane interconnects within the acceptable operational impedance range. These contacts behave as a plane in the direction of interest in a backplane system.

Abstract: A cable connector or jumper for providing alternating current between adjacent electrical modules comprises a first head member having a set of recessed prongs, a second head member having a set of recessed mating apertures, and a semi-rigid, tubular connecting member. The connecting member incorporates a ferrule of magnetic material for reducing RF emissions. The connecting member is sufficiently rigid to permit same to be manually grasped for insertion and removal of the head members into corresponding connectors on adjacent electrical modules, while the connecting member is sufficiently flexible to permit the head members to be moved relative to one another in order to facilitate their insertion into and removal from the module connectors.

Abstract: A number of modules mechanically and electrically connect to each other to form an interconnecting module system. A latching mechanism connects each of the modules together. There is a backplane in each of the modules. The backplanes are interconnected When the modules are interconnected to each other. In addition, the modules can be stacked on top of each other and on top of a base. The base provides stability and support for the stack of modules.

Abstract: A smoke aspirating device is provided for eliminating smoke generated during electrocautery surgery which is simple to use and includes a substantially flat and flexible panel structure having spaced upper and lower panel members with a closed area therebetween, the upper panel member having a plurality of spaced apertures arrayed over substantially the planar area thereof connecting with the closed area, the lower panel member have a pressure sensitive adhesive coated over its lower surface for attachment to a patient and the panel structure having a connector projecting from one end which is adapted for connecting with a vacuum source for drawing smoke and air from an electrocautery surgery site over the surface of the panel structure and inwardly through the apertures and closed area within the panel structure.

Abstract: A shield for eliminating smoke created during electrocautery surgery includes an elongated base member and an upwardly extending concave wall secured to one edge thereof. Located on the upper surface of the base member is an elongated suction tube which extends along the base member. A plurality of vertical openings in the upper surface of the tube create an air flow when the tube is connected to a vacuum source. Air and smoke in the vicinity of the shield are drawn inwardly toward the top of the shield, down the inner surface of the concave wall and into the suction tube. The bottom surface of the base member has a pressure sensitive adhesive thereon so that the shield can be mounted on a patient or on the patient's surgical gown or covering adjacent the surgical area.

Abstract: A disk drive shock mount is provided which attenuates shocks and vibrations to a disk drive (1, FIG. 1). The mount comprises a cradle 20 which is affixed to the disk drive housing, and a mounting plate 10 which may be used to suitably secure the disk drive assembly 1 to the next higher level of assembly. Flexible, compressible vibration isolators 50 of rubber or plastic are used to couple the cradle to the mounting plate. Rigid pins 70 on the cradle mate with grommet-enclosed apertures 60, 61 in the mounting plate to limit the degrees of motion permitted between the cradle and the mounting plate.

Abstract: A printed wiring assembly card insertion/extraction tool is provided of circular cross-section with a cam-like member at one end. Each card within the card cage has a tab centrally located along one edge, the tab containing a keyhole-like aperture. When the cards are in their normal side-by-side position within the card cage, all of the apertures line up with a similarly shaped aperture in a support bracket mounted on one side of the card cage, such that the insertion/extraction tool may be inserted through the apertures. A selected card may be extracted by appropriate rotation of the tool about its axis, whereby the cam-like member engages the corresponding aperture of the selected card and forces it out. Likewise, cards may be inserted by reversal of the process. A retaining bracket is provided on the opposite side of the card cage opening from the support bracket.