Abstract: An electronic control apparatus in which each device unit is detachably mounted on an open front portion of a box-shaped main body by a press-and-clamp engaging mechanism. A nail plate is formed on both side faces of a terminal block. By engaging the nail plates with engaging holes formed in a unit main body, the terminal block can be attached to the unit main body and connected to a unit circuit board at the same time. A triangular color segment is attached to an indicator portion of each device unit for identification of its type. A palm-top type program setting unit is connected to a processing unit through lead wires. The inside circuitry of the setting unit is exposed by sliding its operation section.

Abstract: A card edge connector with a housing and electrical contacts. The electrical contacts are spaced from adjacent contacts at a center-to-center pitch of 0.025 inch. The contacts each have a middle section that is interference fit in a contact receiving channel of the housing. The middle sections each have a general ring shape with a center electromagnetic reduction aperture. The ring shape forms a structural truss to retain structural rigidity of the middle section to enable the interference fit to be made and, the center electromagnetic reduction aperture reduces capacitance between the closely spaced adjacent contacts.

Abstract: In order to provide a small-sized card and a connector device therefor having no fear of damages and stains of terminals, the card according to the invention has a structure comprising a casing with an opening, and a double-faced substrate on which electronic parts are provided and a plurality of terminals are attached in the vicinity of one end of the substrate, in which the terminals are provided on both the upper and lower surfaces of the substrate, the lower surface of the substrate is disposed in contact with the inner surface of the casing, the terminals on the lower surface of the substrate are covered with a cover which is swung or slid to be opened/closed freely, so that when the card is inserted in a connector device, the cover is opened to expose the lower-surface terminals and to fit them closely in a connector of the connector device.

Abstract: A card edge connector for printed circuit boards is disclosed which employs a double-decker design. The connector may have the same length and width as conventional connectors used on Industry Standard Architecture (ISA) personal computers but is deeper. Conventional 8- and 16-bit ISA accessory circuit boards may be plugged into a corresponding socket which is also disclosed herein until they reach a stop upon which they rest, working as they would in an ISA personal computer. 32-bit Extended Industry Standard Architecture accessory circuit boards have a second row of connectors and a notch so they slide farther down into the socket, lining up with a second row of contacts. This design uses less physical space for connectors, allowing more room for logic circuitry on the motherboard.

Abstract: A system is provided wherein an IC memory card (10) is inserted into a slot (12) of an electronic device (14), which discharges any static electric charge on the card prior to mating of card and device contacts (32, 34). The card has a frame with opposite sides that have metal clips, and the electronic device has grounding terminals (74, 76) that engage the clips, as the card is inserted.

Abstract: A card edge connector for printed circuit boards is disclosed which employs a double-decker design. The connector may have the same length and width as conventional connectors used on Industry Standard Architecture (ISA) personal computers but is deeper. Conventional 8- and 16-bit ISA accessory circuit boards may be plugged into a corresponding socket which is also disclosed herein until they reach a stop upon which they rest, working as they would in an ISA personal computer. 32-bit Extended Industry Standard Architecture accessory circuit boards have a second row of connectors and a notch so they slide farther down into the socket, lining up with a second row of contacts. This design uses less physical space for connectors, allowing more room for logic circuitry on the motherboard.

Abstract: The present invention relates to a contacting apparatus for a SI module. The SI module is provided with contact areas adapted to be contacted by contact elements supported by said contacting apparatus. So as to achieve a contacting apparatus having small outer dimensions, the contact elements of the contact apparatus for the two rows of contact areas are arranged in an intermeshing manner.

Abstract: A connector for electrically connecting a plated or soldered through hole of a printed circuit board to another electrical device includes a plurality of conductors each having a deflection arm for maintaining a contact force on the circuit board and a dimple formed as a continuous surface from the deflection arm. Each dimple is sized and shaped to enter a through hole and to electrically contact the plating or solder material formed in the hole. Contact can be at a point within the hole or along the circumference of the hole. In addition, each dimple is sized and shaped to enter a range of through hole sizes. In a preferred embodiment each dimple is formed in a generally pyramidal shape with creased edges and a smooth apex. The dimple may also be formed in a generally conical shape.

Abstract: A method and structure of an electrical connector is provided for tuning the impedance of the connector according to a given impedance of an electrical circuit in which the connector is interconnected. The connector includes a dielectric housing having a receptacle for receiving a complementary electrical component. A plurality of terminals are mounted on the housing. The terminals include body portions located in the housing and contact portions for engaging respective contacts on the electrical component. The body portions include mechanically nonfunctional sections of a given area which effect a given capacitance. The mechanically non-functional sections are selectively trimmable to selectively vary the area thereof and thereby vary the capacitance of the terminals and, therefore, the impedance of the connector to match the given impedance of the electrical circuit. The connector includes a plurality of signal terminals and a plurality of ground terminals.

Abstract: A method for the construction of a high density electrical connector for connecting a printed circuit board with a burn-in board in a burn-in system. The method comprises the steps of attaching a standard edge connector to a printed circuit board to form a first set of contacts, attaching two outer contact strips to the printed circuit board to form a second set of contacts, and enclosing the outer contact strips and the edge connector in an outer housing. The edge connector and the outer contact strips are secured to the printed circuit board through soldering. A burn-in board having a plurality of contact pads thereon can be inserted into the electrical connector such that the contact pads come into contact with the first and second set of contacts.

Abstract: In a no-insertion force connector assembly comprising a connector body comprising a housing for supporting a plurality of resiliently deformable contact members, a connector portion provided on a print circuit board, the connector portion having a plurality of contact terminals each positioned at a place corresponding to the contact of the contact member and at least one float member for resiliently deforming the contact members so that their contacts may each shift to a position where they are each electrically connected to the corresponding contact terminal, the contact members each comprises a plurality of first and second contact members, which are each different in the length ranging from the connecting end up to the above-described contact, the first and second contact members being alternately disposed.

Abstract: An edge connector is provided for a printed circuit board having a mating edge and a plurality of contact pads adjacent the edge. The connector includes an elongated dielectric housing having a board-receiving slot for receiving the mating edge of the printed circuit board. A plurality of spring contact elements are mounted in the housing along at least one side of the slot. The spring contact elements have spring contact portions extending into the slot for contacting respective ones of the contact pads on the printed circuit board. A surface on the housing at the one side of the slot defines a datum plane beyond which the spring contact portion of at least one of the spring contact elements extends into the slot. A biasing spring on the housing biases the printed circuit board against the surface, thereby deflecting the spring contact portion of the at least one spring contact element a predetermined amount.

Abstract: An electronic connector is configured to removably receive either a circuit card of a first type, having one row of contacts per side, on an insertion tab adjacent to an insertion edge, or a circuit card of a second type, having two rows of contacts per side. Two rows of spring contacts are provided for this purpose on each side of a central card-receiving slot. Interposing means are also provided to prevent contact between a daughter card of the first type fully inserted in this slot and one of these rows on each side. These interposing means may consist of a slotted interposer structure slid over a portion of the insertion tab of the card, or alternately of a pair of pivotable interposers mounted along the length of the connector, to be pivoted by sections of daughter cards of the first type so that vanes extending from these interposers will push these springs away from the card.

Abstract: A card type integrated circuit device is provided with a terminal arrangement for adapting the device to both 8 bit and 16 bit external systems. The arrangement includes a central terminal array wherein terminals for carrying signals common to both 8 bit and 16 bit systems are disposed, and an end terminal array wherein terminals for carrying signals exclusive to a 16 bit system are disposed.

Abstract: An innovative microboard package, which includes not only a row of edge connector contacts along one long edge thereof, but also includes another row of edge connector contacts along the other long edge. The contacts are connected so that the functionality of the board can be changed merely by choosing one of the two orientations for insertion. For example, one embodiment provides a microprocessor module if insertion is done in one direction, and a microcontroller module if insertion in the other direction. Optionally, the row of contacts which is not inserted into the mother board can be connected to a jumper cable, using a simple connector header.

Abstract: A card edge connector assembly includes a printed circuit card having an edge and a plurality of first conductive pads arranged in a pattern on one side of the card near the edge, and a plurality of second conductive pads arranged in a pattern on the opposite side of the card spaced inwardly of the edge and the first conductive pads. An elongated housing is provided with a card receiving slot for receiving the edge of the printed circuit card. A plurality of pairs of contact elements are mounted in the housing along the length of the slot. Each pair of contact elements includes a short contact element having a spring contact portion for engaging one of the first conductive pads, and a long contact element having a spring contact portion for engaging one of the second conductive pads. The contact portions of each pair of contact elements are spatially overlapped each other in a direction transversely of the slot to increase the deflection capabilities of the contact elements.

Abstract: A card edge electrical connector is shown for providing electrical connections between a printed circuit card and a printed circuit board wherein the printed circuit card has either a 32 bit or a 16 bit capacity. The connector includes a housing having a retaining post that is inserted into an aperture of the printed circuit board to retain the connector to the printed circuit board. The retaining post is tubular having an axial slot extending through the sidewall thereof so as to be resilient and durable. Further, each of the contacts disposed within the connector housing includes a stabilizing arm that opposes the forces created by the insertion of the printed circuit card into the connector housing so as to distribute the opposing forces between the stabilizing arm and the base of the contact. Contacts of alternating sizes and having beams of different angles with the base are employed in the connector.

Abstract: A connector comprises, a housing having at least one open side surface, a plurality of contact end portions alternately arranged at a first position which is spaced away from the opening by a predetermined distance along a first surface perpendicular to the open side surface in the housing, and is close to a surface opposite the first said surface, and at a second position closer to the opening than the first position by a predetermined distance and shifted to the first side surface, and a slider having a structure which can be fitted in the housing to clamp a cable inserted forwards the first side surface in said housing for electrical connection with the contact end portion in the housing, the slider having an indentation at a distal end portion.

Abstract: A card edge electrical connector is shown for providing electrical connections between a printed circuit card and a printed circuit board wherein the printed circuit card has either a 32 bit or a 16 bit capacity. The connector includes a housing having a retaining post that is inserted into an aperture of the printed circuit board to retain the connector to the printed circuit board. The retaining post is tubular having an axial slot extending through the sidewall thereof so as to be resilient and durable. Further, each of the contacts disposed within the connector housing includes a stabilizing arm that opposes the forces created by the insertion of the printed circuit card into the connector housing so as to distribute the opposing forces between the stabilizing arm and the base of the contact. Contacts of alternating sizes and having beams of different angles with the base are employed in the connector.

Abstract: A printed circuit card and card edge connector for use with a 32-bit bus include respectively a pattern of conductive fingers and pins in the connector that render the card electrically compatible with existing 8-bit STD connectors and that render the card edge connector electrically compatible with existing 8-bit STD cards. the latter compatibility makes it possible to use in 32-bit systems any of the more than a thousand existing 8-bit circuits without modification; while the former compatibility makes available to 8-bit systems an easy path to growth and the expanded computational power of a 32-bit system.

Abstract: An electrical connector assembly ( b 10) includes a connector (22) for interconnecting circuit boards such as a daughter board (12) to a mother board (102) wherein contact pads on the boards are on very small centers. Connector (22) includes a housing having an upper housing portion (24) and a pair of lower housing subassemblies (60), each subassembly including housing (62) having first and second contact members (74, 92) affixed thereto with the contact members having upper ends (78, 92) made to lie on a common plane and engage one side of a circuit board (12) inserted into the connector (22) in a resilient engagement therewith, anfd having lower ends which form solder tails (88, 96) held for soldering to pads (106, 108) on a mother board with such contact membrs being formed with the solder tails (88, 96) interdigitated to lie in a common row and a common plane on center spacings substantially less than center spacings of the upper ends.

Abstract: An electrical connector comprises a body accommodating one group of staggered rows of spring contacts for engagement with cone-shaped contacts arranged in correspondingly staggered rows on a printed circuit board. The spring contacts of one row have intermediate flattened parts which slidingly engage with peaks of the corresponding dome-shaped contacts thereby requiring low insertion force while curved parts of spring contacts of the other row are riding up the convex profile of the corresponding dome-shaped contacts requiring high insertion force. Two similar groups of staggered rows of spring contacts may be provided for accommodating boards having staggered rows of raised contacts on both sides of the board.

Abstract: A structure for coupling a plurality of substrates includes at least two transverse parallel substrates on which connectors are fixed so that their coupling motion is effected perpendicularly of major surfaces of the substrate. The structure further includes a longitudinal substrate on which connectors are fixed at front and rear different positions so that their coupling motion is effected in a parallel direction with a major surface of the substrate. When the longitudinal substrate is mounted to the transverse substrates, with their connectors being coupled together, structural and electrical connection between the longitudinal substrate and the transverse substrates is established simultaneously.

Abstract: A device (24) for edge-locking printed circuit wiring boards (12, 14) within a support chassis (10) has an elongated clamping body (40) with deformable clamping strips (42, 44), one at each side of the body (40). The clamping body (40) is located on the top surface of a central wall (32) having sloping sides which is integral with a support chassis (10) cross-wall. Screws (36) on advancing into the body, (40) pull the clamping strips (42, 44) onto the central wall (32) deforming the strips into pressure contact with the wiring board (12, 13) edge portions. An alternative version substitute at least two ferrules (46) for the central wall (32).

Abstract: Apparatus for connecting a data storage module to an external circuit. A power supply terminal is connected between the module and the external circiut before signal terminals are connected. Apparatus includes a printed circuit board male card edge connector having selected card edge pins that extend farther than other card edge pins.

Abstract: A construction for removing electrical charge generated in a data input device when the data input device is connected to a data storage device. Contacting members connected to a ground are provided on the connector of the electronic apparatus and contact conductive members of the input device to remove electrical charges prior to connecting the input terminals of the input device to the connector terminals of the electronic apparatus.

Abstract: An arrangement for removable connection between substrates including a first and a second substrate and a first connector mounted on the first substrate and a second connector mounted on an edge portion of the second substrate. The second connector is adapted to be engaged with the first connector. The arrangement also includes a third connector mounted on the first substrate with the third connector having first and second contacts. A third contact is provided in the vicinity of the edge portion of the second substrate and is adapted to contact the first contact of the third connector during an initial stage of an engaging process of the first and the second connectors and to contact the second contact of the third connector after the initial stage.

Abstract: A card edge connector 50 for electrically engaging a first and at least one other array of contact pads 46, 48 on a circuit board 40 comprises a first or inner subassembly 51 including housing member 52 having a first group of terminal members 20 disposed therein and a second or outer subassembly 71 including housing member 72 having at least one other group of terminal members 28 disposed therein. The first group of terminal members 20 is adapted to electrically engage the first array of contact pads 46 and the at least one other group of terminal members 28 is adapted to electrically engage the at least one other array of contact pads 48. The outer housing member 72 further including cavity means 86 adapted to receive the inner housing member 52 therein. In the preferred method of assembling connector 50, outer subassembly 71 is disposed over the inner subassembly 51 after the inner terminal members 20 have been electrically connected to their respective contact pads 46, typically by solder.

Abstract: Electrical connector combination in which contact pins extending from separate portions of the connector hold a PCB by virtue of spring characteristics of the contact portions.

Abstract: Disclosed is a connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment.

Abstract: An electrical connector for providing electrical connection to a substrate having contact elements thereon (e.g., a printed circuit board) wherein torsional contacts are utilized. The contacts, actuated by a vertically moving, slidable member (e.g., a cam plate) and horizontally moving actuator (e.g., a linear cam), resume a normal, twisted configuration to effect such connection with the respective contact elements. Each contact, preferably metallic (e.g., beryllium copper), includes a curvilinear edge segment while each contact element (e.g., plated copper wire) in turn includes a curvilinear contacting surface, these two members thus providing a single point form of contact while assuring effective wiping motion to remove undesirable contaminants, debris, etc. which may be located thereon. Relatively high contact forces (e.g., 200,000 PSI) are possible using the invention.

Abstract: A dual purpose card edge connector which can accept a printed circuit card having conductive pads on one center-line spacing or another printed circuit card having conductive pads on a different center-line spacing. More particularly, contact portions on contact elements disposed in an insulating housing are alternatively located at two different levels to cooperate with positioning members in the card receiving slot so that a circuit card not having edge notches is positioned on the positioning members and the conductive pads are engaged by the contact portions at the upper level while a circuit card having edge notches slide past the positioning members and the conductive pads thereon is engaged by the contact portions at both levels.

Abstract: Grounding terminals of a memory unit are disposed at the opposite ends of an array of signal terminals of the memory unit, respectively, reception grounding terminals of a connector are disposed at the opposite ends of any array of reception signal terminals of the connector, respectively, the grounding terminals of the memory unit are connected to the reception grounding terminals of the connector, respectively, before the signal terminals of the memory unit are connected to the reception signal terminals of the connector in inserting the memory unit in the connector. Upon the insertion of the memory unit in the connector, the static electricity accumulate in the memory unit is discharged surely to a ground without affecting the semiconductor memory of the memory unit through the signal terminals and the reception signal terminals.

Abstract: A high density edgecard connector system includes a first row of cantilever contacts and a second row of cantilever contacts which are longer than those of the first row. The edgecard includes first and second rows of contact pads which are located differing distances from the bottom of the edgecard. Ribs are mounted on the edgecard between each of the contact pads in the first row and lift the cantilever contacts of the second row away from the surface of the edgecard in order to prevent cross connections between the cantilever contacts of the second row and the contact pads of the first row during insertion or withdrawal of the edgecard into or out of the connector. The ribs include ramps on either end and may be integrally molded with a spine which attaches to the bottom edge of the edgecard.

Abstract: A printed circuit card includes a modified finger contact spanning two finger contact positions on its edge connector to momentarily short correspondingly adjacent receptacle contacts of a mating receptacle connector when the printed circuit card is either plugged into or removed from the mating receptacle connector.

Abstract: The invention discloses a connector for printed circuit board comprising a first contact piece with a spring contactor, a second contact piece with a spring contactor, and a body in which these spring contactors can be arranged at their positions deviated from each other in lengthwise direction and a printed circuit board can be inserted in and out obliquely between contact points of the spring contactors, characterized in that when the printed circuit board inserted obliquely in the body is situated in substantially horizontal state, the printed circuit board is tightly contacted with the contact points of the spring contactors, thereby electrical connection between the printed circuit board and the first and second contact pieces being exactly and appropriately insured over a long period irrespective of frequency in insertion in and out of the printed circuit board.