Abstract: The subject invention is an apparatus and method for cooling an electronic device. The apparatus comprises a vessel having upper and lower regions and inlet means for delivering a flow of cooling fluid to the upper region. The apparatus also includes means for positioning the device within the lower region but above the bottom of the vessel, and divider means within the vessel disposed between the flow and the device.

Abstract: A simple, yet fluid tight seal for a cryogenic enclosure. The seal between two portions of the enclosure becomes tighter as the temperature is lowered because both portions contract against a third member which does not contract with temperature to the same degree. Further, this contraction is elastic and therefore the enclosure may be disassembled and reassembled numerous times without damage to the seal. This is particularly advantageous for sealing lids or containers for cryogenic electronic components.

Abstract: A pump and method for delivering a cooling fluid from a reservoir of fluid to a destination is disclosed. The pump comprises a vessel for holding fluid to be delivered, the vessel being submersible within the reservoir. The vessel has a fluid inlet near its bottom for receiving fluid from the reservoir and a gas discharge outlet near its top. The pump has an inlet valve for preventing fluid from flowing out of the vessel through the fluid inlet, and a gas discharge valve for opening and closing the gas discharge outlet. The discharge valve is responsive to the level of fluid within the vessel. The pump also comprises a conduit for conducting fluid from inside the vessel to its destination, and heating means for evaporating the fluid within the vessel. This heating creates a pressure head within the vessel when the gas discharge outlet is closed thereby causing the fluid to flow through the conduit.

Abstract: An electrical test connector for a small outline surface mount technology (SO SMT) package or the like comprises an insulative body which holds the test conductors in an arrangement at one end to connect to the leads of the SO SMT package under test without causing accidental short circuits, and at the other end in a second, more widely spaced arrangement to facilitate the connection of test leads. The test clip is held in place by two gripping members which grip the opposing ends of the SO SMT package. A slide unit, when in the test position, supplies the force which causes the gripping members to grip the ends of the SO SMT package. Removal of the test connector from the SO SMT package is easily achieved by moving the slide unit to the release position where it does not supply the force to the gripping members to grip the SO SMT package tightly. The ambit or "footprint" of the test connector is substantially the same as the ambit of the SO SMT package including the leads.

Abstract: An improved connector for attaching a mother board to a daughter board, having a slotted housing, a slotted elastomeric member, and a flexible circuit with numerous conductors. The flexible circuit is wrapped around the elastomeric member with its two free ends ending at the slot of the elastomeric member. The wrapped elastomeric member is located in a chamber in the housing with the slot in the housing communicating with the slot in the elastomeric member so that when the daughter board is inserted into the housing, it engages the free ends of the flexible circuit within the slot of the elastomeric member. The elastomeric member has two semi-cylindrical portions which are separated by a channel at the bottom thereof. The elastomeric member with these semi-cylindrical portions is slightly larger than the chamber of the housing when mounted by fasteners to the mother board.

Abstract: A cryogenic vessel for cooling electronic components, wherein the cryogenic vessel includes a pair of vessel portions, each vessel portion having an outer wall and an interior immersion chamber. A membrane member is located between the vessel portions for separating the mentioned immersion chambers. The membrane member includes openings for providing fluid transfer between the immersion chambers of the vessel portions and a portion extending from between the vessel portions to a point exterior of the vessel portions. Sealing members are located between the membrane member and each of the vessel portions for providing a fluid tight seal of the immersion chambers. An electronic component mounting socket is located on a portion of the membrane member within the immersion chambers for mounting an electronic component to be cooled. A supply conduit through the outer wall of one of the vessel portions introduces cryogenic fluid into the immersion chambers.

Abstract: A right angle connector which can be added to connector pads pre-existing on a mother board easily and inexpensively to accept a daughter board at any time for system enhancement. The right angle connection is also inexpensively manufactured and installed. The connector includes a slotted housing, a slotted elastomeric member, and a flexible circuit with numerous conductors. The flexible circuit is wrapped around the elastomeric member with its two free ends ending in the slot of the elastomeric member and these components are then inserted into the housing. The elastomeric member is a little bit larger than the enclosed volume of the housing when it is mounted by fasteners to the mother board. Thus, as the housing is fastened to the mother board, the elastomeric member is compressed causing it to make a better electrical contact between the electrical contacts of the mother board and the electrical contacts of the daughter board.

Abstract: A non-conducting, plastic type of cryogenic fluid transfer conduit is presented which is suitable for transferring the cryogenic fluid from a standard reservoir into the midst of an electronics cabinet, such as a mini-computer, to cryogenically cool electronic components. When connected to a suitable enclosure, in which the electronic components to be cooled are mounted, the conduit transfers the cryogenic fluid from the reservoir to the enclosure with an acceptably low heat loss. The conduit subsequently transports the "warmed" cryogenic fluid, which picked up heat by cooling the electronic components, to the region of the reservoir where most or all of this "warmed" cryogenic fluid is vented either to the external environment, or back to the reservoir where it is subsequently cooled by a cryogenic refrigeration unit for re-use.

Abstract: A panel is mounted between parallel spaced apart frame members by a pair of retainer members having a length greater than the spacing between the frame members so as to project through selectively spaced openings in the frame members. Each of the retainers is provided with a slotted channel for receiving an edge of the panel. Opposing ends of the retainer are provided with a pair of bifurcated legs which may be flexed toward one another to permit the snapping of the retainer into the selectively spaced slots in the frame members. The retainers are movable within the slots during assembly to firmly engage opposite edges of the panel in the slotted channels. Electrical connectors may be mounted in the retainers' slotted channels to mate with electrical conductors on the panel.

Abstract: A support apparatus for a cabinet on the like includes a stationary support member having a cut-out portion in which are located electrical cables interconnecting an assemble of cabinets. Slidable mounted on the stationary support member is a cabinet support member having cam rollers rotatably mounted in a cam track located along the top edge of the stationary support member allowing the cabinet support member to move along the stationary support without engaging the interconnecting cables.

Abstract: A back panel particularly adapted for mounting a plurality of electrical connectors of differing size in a grounded and electrically shielded condition. The back panel is formed of a conductive material having parallel openings of fixed length adapted to receive the electrical connectors of interest. A mounting flange affixable to each connector has a width which laps over the opening in the back panel. At least one pair of clamping bars, one for each side of the connector, is provided for holding the mounting flange in rigid electrical contact with the back panel. Plates are provided to fill any openings not filled by connectors and their associated mounting flanges so as to maintain the electrical shielding integrity of the assembly.

Abstract: An electrical connector provides mechanical advantage in obtaining high contact force with low insertion force. A pin is utilized as a cantilever beam to provide high contact force. A carrier, which is activated by insertion of a printed circuit board or the like, includes a lever forming part of the electrical connection. A spring element acts on the carrier to insure the levers are not in the path of the printed circuit board until after the printed circuit board makes contact with the carrier. The lever is displaced by the insertion of the printed circuit board causing a deflection of the pin. The lever has contact points capable of causing a piercing action, thereby forming good electrical contacts.

Abstract: An edge connector wherein an insulated base defines an elongated opening and an insulated carrier is slidably mounted to the base. The carrier is provided with an elongated opening for receiving a printed circuit board. A series of conductors are pivotly coupled between the base and the carrier, such that each of the conductors pivots about one end when the carrier is slid with respect to the base. The length of the conductors is sufficient to come into contact with the edge contacts of the printed circuit board when the printed circuit board is received by the carrier and for transmitting a retaining force to the printed circuit board. A series of resilient pins mounted to the base and in contact with the pivot end of respective conductor of the series of conductors provides along with a spring both the retaining force and the contact force necessary for good electrical contact.

Abstract: An electrical connector permits the use of non-noble metals by providing mechanical advantage in obtaining high contact force with low insertion force. A pin is utilized as a cantilever beam to provide high contact force. A carrier, which is activated by insertion by a printed circuit board or the like, includes a lever forming part of the electrical connection. The lever is displaced causing deflection of the pin. The lever has contact points capable of piercing non-metallic oxides, thereby forming good electrical contacts.

Abstract: A levered inject-eject cam device is provided for pivotal mounting at the upper and lower corners of the rear edge of a printed wiring board. The cam is constructed of an integral molded body member having a bifurcated configuration which forms branching members which receive the wiring board therebetween. The branching members form flat stock members and the cam is formed as a profile shape of these flat stock members to engage a fixed engageable strip which extends toward the edges of the printed wiring board from the frame of the wiring board cell. A tyne is integrally molded into each branching member to resiliently grasp the board. The tynes provide sliding friction which permit the cams to be prepositioned before the wiring board is inserted into the cell so that the cams will be in proper position to cam the engageable strip, and not be in an undesired position in which the cam lobe strikes against the engageable strip and prevents insertion.