Abstract: A connector system for connecting together selectable pairs of terminal posts from two matrices of pairs of terminal posts mounted upon a common substrate and in which the columns and rows are interleaved. A first type connector housing configuration is employed to connect together a given pair of posts from a given row in a first matrix to a second adjacent pair of posts in the adjacent row of the second matrix. A second type connector having a second configuration is employed to connect a first pair of posts, such as said given pair of posts, to a third pair of posts which are adjacent said second pair of posts in said adjacent row of said second matrix.

Abstract: An apparatus for terminating a very fine magnet wire and which, in doing so, becomes the permanent termination thereof. A three sided contact forming three sides of a trapezium has the center side form an acute angle with the serrated second side and an obtuse angle with the third side. A housing has a cavity therein for receiving and retaining the contact. The cavity contains a stopping means against which the junction of the first and center contact sides abut as the contact is inserted into said housing. However, the third contact side continues further into the cavity to alter the said acute and obtuse angles towards right angles, thereby pushing the serrated second contact side in a direction normal to the insertion force and against a given wall of the housing and across which the magnet wire has been positioned.

Abstract: A serrated wire securing member for use such as a terminal or splice for making connection to at least one wire includes a plurality of side-by-side ridges along an axis perpendicular to the axis of a piece of metal crimped about and encircling the wire. The ridges have floors in the interspaces therebetween of progressively decreasing depth from one end thereof, and have trapezoidal walls, the walls facing in one direction being of essentially one angle, and the walls facing in the other direction being of progressively increasing angle. The varying floor depth and wall angles together and individually promote the flow of the wire conductor material into more uniform contact with the terminal material to form better physical and electrical connection therebetween.

Abstract: A contact has a contact portion, a backing member, and a leg integrally connected together and stamped and formed from sheet metal. The contact is crimpable to a flat conductor cable having a conductive layer with first and second insulating layers disposed on the opposite sides thereof. The cable is disposed adjacent the contact with the first insulating layer toward the backing member so that a region of the backing member overlies the conductive layer, with the second insulating layer toward an extended end portion of the leg, and with a cross-sectional section of the cable adjacent a base portion of the leg. The leg is deformed to cause the cable to be pressed between the end portion and the region of the backing member and to cause the extended end portion to pierce the second insulating layer and make electrical contact with the conductive layer.

Abstract: An elongated bus bar is coated with solder and has a first plurality of large holes, and a second plurality of smaller holes formed therein. The holes are spaced apart predetermined distances which correspond to the distances between terminal posts upon which the bus bar is to be mounted. The larger holes are sufficiently large to remain completely free of the bus bar and also of the solder when it is melted. The smaller holes lie individually in sections of the bus bar which are bent in opposite rotational directions with respect to the main plane of the bus bar, and about the longitudinal axis of the bus bar, to provide an interference force fit between each of the smaller holes and the terminal posts inserted therein. These force fits oppose each other in different terminal post insertions because of the bending of the bus bar around the smaller holes.

Abstract: A connector system having tab-like male terminal with stopping shoulders and a female terminal contained in a housing which has an opening for insertion of the male terminal into the female terminal. To provide needed electrical isolation for the female terminal in its unmated condition, the housing extends beyond the male tab receiving outer edge of the female terminal a predetermined distance D.sub.1. Because of industry length standards for male tab terminals the shoulders thereon must abut against the outer edge of the female terminal for proper mating. Thin membranes, which are slitted, are formed in the housing to mate with the male tab shoulders and extend from the outer edge of the housing to a distance back of the outer edges of the female terminal to enable the male tab shoulders to push aside the slitted, thin membranes and abut against the outer edge of the female terminal.

Abstract: An electric motor assembly in which a one piece connector housing is mounted generally concentrically upon one end of the stack of core laminations, with alignment thereof obtained between the alignment holes in the core laminations and given points on the housing. The housing contains contacts constructed to terminate both the motor field coil ends and lead wires, without solder if desired, and by automated means, if desired.

Abstract: An apparatus consisting of a pair of rollers with tangentially meeting perimeters for crimping successive portions of a continuous strip of solder into rings around a strip of terminal posts carried in parallel manner upon a common carrier strip. The roller perimeters each contain a circumferential track of crimping ridges which are both axially and angularly positioned to coincide with corresponding ridges on the other roller to crimp said solder strip around each post on the strip of terminal posts, both strips being simultaneously passed between the crimping tracks on said rollers. Each roller also comprises a circumferential track of spur-type gear teeth, the two tracks being axially offset on opposite sides of said crimping tracks and having bottom lands (the troughs of the teeth) which coincide when the teeth pass through the common tangential or pitch plane of the rollers.

Abstract: An electrical connector is attachable to an insulated electrical conductor wire and insertable partially through a hole defined through a printed circuit board after attachment of the connector to the wire in order to retain a bared end portion of the wire in a desired predetermined position between the sidewalls of the hole and substantially below the top surface of the board prior to the formation of an electrical solder connection between the bared end portion of the wire and an electrical conductor formed on the bottom surface of the board. The connector is comprised by a base having rearward and forward portions, a first pair of sidewalls extending outwardly from opposed longitudinal sides of the rearward base portion, a second pair of sidewalls extending outwardly from opposed longitudinal sides of the forward base portion, and a pair of resiliently flexible hook-like members projecting from the second pair of sidewalls.

Abstract: A terminal for connecting a fine magnet wire to a larger wire with relatively thick insulation. The terminal has a barrel at one end section thereof with serrations extending substantially circumferentially around the inner surface thereof. At the other end of said terminal there is a second barrel with tangs extending inwardly therein. The fine magnet wire is laid within the end of the barrel containing the serrations. The large wire with the heavy insulation is laid within both sections of said barrel including the portion containing the tangs and the portion containing the serrations. Crimping of both barrels in the terminal causes the heavy insulation on the large wire to force the magnet wire into the barrel serrations, thereby elongating the magnet wire and breaking the shellac or fine plastic insulation thereon so that the magnet wire makes electrical contact with the barrel.

Abstract: A low profile contact, stamped or cut from a section of flat stock material, for receiving a male pin for connection to a lead of a printed circuit board, includes a cylindrically shaped pin receiving portion for insertion into a hole in the printed circuit board conterminous with the lead. A plurality of tabs extend upwardly from the top of the cylinder, and a pair of opposite tabs are bent intermediate their ends to partially extend into the cylinder to engage the inserted pin. The tabs are flared outwardly from the top of the cylinder to provide a guide to assist insertion of the pin into the cylinder and to provide a seat upon which the contact seats upon the surface of the circuit board. The cylinder is formed with a gap or space parallel to its axis to enable it to be radially compressed upon insertion into the hole of the printed circuit board to urge or bear outwardly upon the walls of the hole to establish firm physical and electrical contact therewith.

Abstract: A free standing all metal contact, which, when mounted on a first board with other similar contacts, all in a straight line, will mechanically receive and hold, and make electrical contact with a second circuit board. Each contact has U-shaped configuration with the two legs of the U having a width which is normal to the plane of the U. The edges of each of the two legs are bent back in a direction away from the other leg to form an I beam type cross-sectional configuration to provide structural strength. Two of the bent back edges which are diagonally positioned are extended beyond the closed end of the U to form a pair of posts which fit into mating holes in the first circuit board to securely mount the contact thereon. The free end of one of the legs is bent downwardly into the U and towards the other leg to provide a spring-like gripping effect upon the edge of the second board when it is inserted into said U.

Abstract: A tool for inserting either single loose pins or a plurality of pins or posts carried upon a mounting strip into holes of a substrate, such as a printed circuit board, in a continuous process and including a push blade and a carrier control blade for receiving the pins and the mounting strip which are carried upon a mounting frame. A plurality of ribs protrude upwardly from the push blade, forming grooves therebetween into which the pins to be aligned for insertion are positioned. A slideable, securing blade, carried upon the mounting frame, is moveable from a position away from the pins to a position engaging the pins to secure them in their aligned positions. A locking mechanism on the securing blade cooperates with the mounting frame to lock the securing blade in the engaging position.

Abstract: A method of connecting the terminal posts of a connector into holes in a circuit board comprising the steps of inserting solder elements, which can have the shape of a doughnut or torus, for example, around each terminal post; inserting a piece of material, such as a strip of plastic or a Styrofoam material rod having a width or diameter greater than the distance between the two rows of terminal posts, in between said two rows of terminal posts to hold the solder elements on the posts; inserting the terminal posts in the holes prepared therefor in the circuit board; removing the strip or rod of material; further inserting, if necessary, the terminal posts into the circuit board holes; and heating the solder doughnuts by appropriate means while the terminal posts are pointed downwardly, that is with the circuit board below the connector, to reflow the solder into the spaces between the holes in the circuit board and the terminal posts therein.

Abstract: A thin, board-to-board zero force insertion and withdrawal connector having a housing containing a plurality of contacts with a first end portion of the contacts secured therein. A pair of parallel rows of rib-like elements extend along the length of the housing and define a U-shaped slot into which the edge of a circuit board can be inserted. The ribs form grooves therebetween which are perpendicular to the rows of ribs. The other end portion of each of said contacts extends downwardly into a groove towards the inner sides of said rib-like elements defining a side of said U-shaped slot, and then further extends upwardly towards the outer side of said rib-like elements. A plate is positioned along the length of said housing and secured thereto by a flexible hinge which divides the plate longitudinally along its length into two sections. A first of these sections extends over the said other end portions of said contacts. The other section of said plate has inclined planes formed on the inner surfaces thereof.