Abstract: A contact pin and bushing assembly has the contact pin and a pin support, which limits the degree of insertion of the contact pin into an aperture in a circuit board, formed as separate items which are clamped together by the back end of the pin being pressed into a bore in the support. The pin support is provided at the base of the contact bushing.

Abstract: An electronic package including a first circuitized substrate (e.g., printed circuit board) and a flexible circuitized substrate wherein the flexible substrate is precisely aligned in removable manner relative to the first substrate. This is accomplished utilizing a retention member and associated frame member, the flexible circuitized substrate being precisely aligned and secured to the frame member. Elastomeric pressure exertion members are utilized to exert pressure against each of a plurality of individual circuitized sections of the flexible circuit member to thus effect engagement between the flexible substrate's contacts and respective conductors which constitute part of the circuit on the first substrate. Moveable clamp members may also be used to engage extending posts of the retention member, said clamp members also possibly acting against a stiffener member located on the first substrate's opposite surface from the flexible substrate.

Abstract: A solid single leg terminal includes an electrical conductor end portion at one end and an opposing substantially solid mounting end portion for mounting through a whole other printed circuit board. The mounting end portion forms an elongate mounting leg of substantially uniform cross-section and defines a longitudinal axis. The mounting leg is dimensioned to be substantially fully receivable within the whole from one side of the printed circuit board through to the other side of the printed circuit board. At least one elongate indentation is provided in the mounting end portion substantially parallel to the longitudinal axis to facilitate splitting of the mounting leg along the indentation into two half leg portions and splaying same into abutment against the other side of the printed circuit board to secure the position of the terminal on the printed circuit board. A method of forming the terminals is also described.

Abstract: An electrical contact to be inserted into an aperture in an electrical board, the contact has an elongated body with a pair of alignment surfaces each having the configuration of a segment of a cylinder whose diameter is substantially the same as the diameter of the aperture of the board into which the contact is to be inserted and whose axis is co-axial with said body axis. The alignment surfaces are circumferentially spaced apart. The alignment surfaces are used to engage the wall of said aperture to position and maintain the axis of the contact co-axial with the axis of said aperture. The contact also has retention means adjacent said alignment surfaces to engage the wall of the aperture to generate retaining forces.

Abstract: Printed circuit boards with busbars for providing large current interconnections are disclosed. The printed circuit board 6 has through holes through each of which a cylindrical fixture member 12 having a top nut portion 12b extends to be secured to the board 6 by means of the bottom flange 12p and the radial outward extension 12a formed by a pressing or caulking step. Each one of the leads 4 of circuit elements 3 has a pin-shaped end portion having a male thread 4a formed thereon which engages with the nut portion 12b of a fixture member, wherein the pin-shaped portion 4a of each lead extends through a through hole formed in the busbars 1 so that the busbars 1 are securely held between the fixture members 12 and the stoppers (radial extensions) 4b formed at the base of the pin-shaped portions 4a of the leads 4. Alternatively, the busbars 1 are held between two radial outward extensions 12a and 12A of each one of the fixture member (FIG.

Abstract: An electrical pin receiving socket (2,102) is disclosed which includes a base portion (6,106) having side arms (8,108) extending upwardly to a top wall (10) or contact arms (112). Back-up springs are positioned proximate the contact arms and cooperate with the contact arms to ensure that the contact arms will electrically engage a mating pin. The base section (6,106) also includes printed circuit board contacts (20,30,120,130), where the contacts (20,30,120,130) are reversely bent under the base section (6,106) and then vertically downwardly to form printed circuit board contacts (26,36,126,136), thereby allowing the electrical pin receiving socket to move relative to the printed circuit board.

Abstract: Press fit pins for use with printed circuit board substrates must maintain pressure with through holes of wide displacement range and a pin with symmetrical mounting portions, each with an arm to engage the inner periphery of the opposite portion elastically, increases range of permissible fabrication deviation.

Abstract: A connecting device for use with fine wire (20) and the like has a post (14) and a sleeve (6), each of which have tapered portions. The sleeve (6) surrounds the post (14) and has an inner surface which extends longitudinally along the sleeve (6) length. A space is provided between the post (14) and the sleeve (6) when the post (14) is fitted into the sleeve (6), the space dimensioned to receive at least one conductive lead (20) therein. The conductive leads (20), post (14) and sleeve (6) are configured such that as the post (14) is axially driven relative to the sleeve (6), the lead (20) is substantially deformed in a termination zone which has serrations (18) provided therein and the post (14) is wedged into an interlocking frictional fit within the sleeve (6) to entrap and terminate the lead (20) to the post (14) and the sleeve (6). A cutting blade (22) is provided proximate the serrations (18) to severe the lead (20) when the post (14) is terminated in the sleeve (6).

Abstract: The present invention relates to circuit board contact elements and compliant sections thereof which are mounted in plated-through holes in printed circuit boards, generally in conjunction with a plastic header or other electrical connectors.

Abstract: An electrical contact to be inserted into an aperture in an electrical board, the contact has an elongated body with a pair of alignment surfaces each having the configuration of a segment of a cylinder whose diameter is substantially the same as the diameter of the aperture of the board into which the contact is to be inserted and whose axis is co-axial with said body axis. The alignment surfaces are circumferentially spaced apart. The alignment surfaces are used to engage the wall of said aperture to position and maintain the axis of the contact co-axial with the axis of said aperture. The contact also has retention means adjacent said alignment surfaces to engage the wall of the aperture to generate retaining forces.

Abstract: An electrical socket for substrates and particularly ceramic substrates. More particularly, the socket includes a U-shaped receptacle and a mounting section for attaching the receptacle to the substrate. The mounting section is attached to one leg of the receptacle and includes a solder foot for being soldered to a circuit pad on the substrate.

Abstract: An electrical contact terminal having a mounting section designed for press-fit insertion into a hole of a substrate such as a circuit board. The mounting section comprises an oblong base portion to which is secured at least one separately formed flexible fin. While the base portion and fin are both electrically conductive, they are not formed integrally from the same material and may be formed of two different materials. The fin or fins are secured to opposite sides of said base portion and are secured to said base portion at one or both ends. At one end, the fins are narrowed in width and thickness and secured to the base portion by means of electrical or laser welding. The fins may be mechanically clamped to the base portion at the other end. The terminals may be carried by a carrier strip and the fins may be preferably formed by punching a portion of said carrier strip and bending it around said base portion of the terminal to form parallel fins extending on opposite lateral sides of the base portion.

Abstract: A print wire driving device for a wire dot printer includes a plate like member having slots therein. The slots are arranged opposite the cores of a magnetic core block. The cores are arranged in a circle and project from the core block. The slots extend radially from the center of the plate like member. A magnetic driving member is received in each slot so that it pivots therein when acted upon by the magnetic field of a respective magnetic core. A print wire is coupled to each magnetic driving member. Each print wire is guided by a wire guide having a wire nose which receives at its end a wire guide member from which the ends of the print wires extend to print.

Abstract: In a contact pin for insertion into metal-coated bores in a contact panel which pin includes a leading guide section followed by a contact section and a connecting section the contact section is S-shaped in cross-section providing for spring arms with contact surface areas at their radial outer ends which have a relatively large even resiliency over the full length of the contact section thereby providing for good but never excessive contact pressure of the contact surfaces on the spring arms with the walls of the bores into which the contact pins are inserted and furthermore avoiding damage to the contact metal coatings upon insertion of the pin into a bore.

Abstract: An electrical terminal pin with a compliant portion adapted to be inserted into a plated-through hole of a circuit board. The compliant portion has a generally S-shaped cross-section with a width which gradually increases from a first axial end toward at least the middle of the axial length of the contact section. The pin has a mating portion joining the compliant portion for connection to another circuit element. Stiffening means are formed on one side of the compliant portion extending from the juncture with the mating portion to prevent breaking of the mating portion from the compliant portion when a transverse force is applied to the mating portion. The compliant pin is mass produced by using a strip of material having a generally uniform thickness throughout. The material is stamped in a given configuration and formed at successive stations to produce the S-shaped cross sectional compliant portion.

Abstract: An electrical connector (10) comprises a housing (12) housing electrical contacts (14). The housing (12) has securing means (16) which help secure the connector (12) to a printed circuit (18) (which may be flexible) comprising contacts (22) each including a back portion (24) having two sets of deformable spaced parallel legs (26). In an open position a contact (22) can be received between the legs (26) which can be crimped to a closed position to clamp them in contact with the contact (22).

Abstract: A terminal system is described for use with circuit boards, which enables the terminals to be subsequently interconnected using any of a variety of point-to-point wiring methods. Each terminal includes a sleeve with a plated-through hole, the upper portion of the hole holding a contact clip member that receives leads of circuit components, and the lower portion of the hole formed to receive any of a variety of wire termination devices. A circuit board assembly is formed by first press-fitting the sleeves into holes in the board, from the component side of the board. A selected one of the many types of wire termination devices are later inserted into the bottom of the sleeve from the wiring side of the board. Each sleeve has a spline at its lower portion and a barb at its upper portion, which together resist rotation or withdrawal of the sleeve from its press-fitted position while avoiding warping of the board.

Abstract: A printed circuit board has a conductive terminal mounted in an aperture extending therethrough. The terminal has a shoulder portion, adjacent a side surface of the terminal, which contacts one surface of the board adjacent the aperture, and a bottom portion which flares outward to contact a conductive coating disposed, adjacent the aperture, on the opposite surface of the board. The bottom portion is rolled over sufficiently to allow a distal end surface of the bottom portion, adjacent the side surface, to contact the conductive coating at an orientation wherein the distal end surface is substantially parallel to the coating.

Abstract: A contact pin for an electrical component, in particular a circuit board, which is provided with a central web-like upset-zone is also provided with spherically molded enlargements on both sides of the press fit portion in order to stabilize the deformation process when the contact pin is being pressed in. The portion of the contact pin located between the connector and the printed circuit board is further formed by two laterally spaced narrow webs as a parallelogram guide means.

Abstract: A film-covered terminal comprises a foil-like or plate-like electrode terminal with its opposite surfaces covered with sealing films through bonding layers respectively, a rivet of a conductive plastic material inserted through the electrode terminal, the bonding layers, and the sealing films, and welded to the electrode terminal, the bonding layers, and the sealing films, and a soldering member secured to an end portion of the rivet. A method of manufacturing a film-covered terminal is also disclosed which comprises the steps of covering opposite surfaces of a foil-like and plate-like electrode terminal with sealing films through bonding layers respectively, inserting a rivet of an electrically conductive plastic material into a through hole formed through the electrode terminal, the bonding layers, and the sealing films, the rivet having an end portion at which a soldering member is secured, and thermally press-bonding the opposite ends of the rivet.

Abstract: The electrical connector block comprises an insulating body and a plurality of conductor terminals mounted in it of which at least one is a protective conductor terminal. It is provided with an additional contacting member which passes through the base of the insulating body facing a connector block support and has at least one exterior plug which can directly make contact in a socket in the connector block support. The protective conductor plug can be mounted in the connector block during manufacture of the connector block or also subsequently to making the connector block without having to dismantle it. The structure and positioning of the protective conductor plug or plugs allows an easy automatic connection to the protective conductor by plugging the conector block into the connector block support.

Abstract: An electrical contact pin for mounting in a printed circuit board. The pin has an H-shaped contact portion cross-section which is mounted in the hole by compliant press-fit action. The H-shaped cross-section comprises four compliant pins and a crossbar. The floor of the crossbar is V-shaped and the transition between the pins and floor is rounded. The height and thickness of the fins on each side of the V-shaped floor are substantially the same, thereby minimizing or eliminating rotation of the pin during insertion into the hole.

Abstract: A cross-shaped retainer post with an oval longitudinal base which may break through when the ribs of the cross are stressed upon insertion into a locating hole.

Abstract: A coaxial cable termination 10 for attachment to a printed circuit board 14 includes an arrangement of pins 30 with bifurcated center sections 43 to permit pressure attachment to the board 14. The termination 10 also includes a pin 16 located along the axis of a coaxial jack 16. The pin 16 also may be adapted with a bifurcated construction 43 to permit pressure attachment to the board 14.

Abstract: Compliant connector pins for interfering force fit insertion in plated through holes of printed circuit boards are formed as elongated segments of wire stock with chamfered ends, with a stamped central board-engaging portion having a central web and a pair of lateral wing flanges extending sidewise in both directions from one edge of the central web, each wing flange being curved toward the other, opposite edge of the web, thus providing the board-engaging portion of each pin with a cross-section in the shape of the lower case Greek letter epsilon. The ends of the curved wing flanges are stamped inwardly to provide the central board-engaging portion with tapered ends, facilitating force fit insertion of the pins in holes in printed circuit boards.