Abstract: Coaxial units are disclosed for coupling an r.f. amplifying microstrip to splitter and combiner wave guides, respectively, of a splitter-combiner apparatus. Each coaxial unit comprises an outer conductor sleeve and an inner conductor pin projecting forward of the sleeve, both the sleeve and pin having forward portions which are resiliently compressible radially inward, and the sleeve being radially enlarged at its front end. The coaxial unit is coupled at its front to its associated wave guide by having its sleeve and pin forward portions, respectively, received in, and radially inwardly compressed in, large and small bores respectively formed in the metallic plates on opposite sides of the dielectric chamber of the associated wave guide. Those forward portions make direct yieldable-pressure electrical contacts with metallic walls of these bores at locations adjacent to the openings of such bores into that chamber.

Abstract: An electrical connector and dual purposes test jack used for testing electrical devices includes both a spring clamp member and a "plug in" pin assembly. The pin assembly has, at one end, an electrically conductive wire receiving portion, a setscrew for attaching an electrical wire thereto, an insulator sleeve therearound and, at the opposite end, a cylindrical, radially compressible, bifurcated, conductive pin having an externally threaded inner end portion. The spring clamp member has, at one end, an electrically conductive tubular receptacle internally threaded adjacent the end thereof and, and its other end, a conductive spring clamp. The pin is longitudinally bifurcated at its outer end portion and is dimensioned such that it may be axially inserted past the internal threads of the receptacle and securely held therein place by the radial compression thereof.

Abstract: A guide wire assembly comprising a flexible guide wire having a diameter of 0.018 inches or less and having a connector assembly. The connector assembly includes male and female connectors. The male connector includes a conductive coil spring and a core wire which extends beyond the conductive coil. The female connector includes a recess for receiving the core wire as well as a conductive element for engaging the coil spring.

Abstract: A terminal pin which can be used in a subminiature electrical connector system ("C") for use particularly in the automotive industry, which system includes a body (3) housing an exemplary three terminal pins (1), which are initially locked into place by resilient internal fingers (6) having outwardly directed locking tabs (6A), which lockingly engage inner openings (19) in the terminal pins. A resilient, exteriorly applied radial locking ring (4) is applied about the body, straddling it, providing a second, double lock for the terminal pins. The locking ring includes three inwardly directed, radial tabs (42A-C) which extend through body openings (3A) and which lockingly extend into outer, mating openings (18) in the terminal pins. The finger tabs and the radial ring tabs are oppositely positioned and conjunctively provide a double lock on each of the pins seated within the connector body. Circumferentially extending guide rails (11) properly locate the radical lock on the exterior of the body.

Abstract: A plug-type inner conductor connection includes a rigid metallic socket and a plug which is insertable into the socket and includes a radially resilient forward portion of reduced outer diameter which ends at an annular shoulder defining a stop for the front end face of the socket. In order to attain accurate centering of the plug within the socket and an even contacting over the circumference, the forward portion of the plug is surrounded by a contact cap which has a base fixedly connected to the plug and a wall so shaped to impart a resiliency in radial direction and with an outer diameter which is at its greatest value at or in the area of the edge of the contact cap in vicinity of the annular shoulder.

Abstract: The electric contact element (1c) is constituted by a substantially planar piece of metal obtained by blanking or punching, the contour of the part (11) of the element (1c) which ensures the contact with an associated contact element (socket 16, 17, 18, printed circuit board, etc.) being such that it enables the part (11) to be elastically compressed in the plane of the part, possibly after a treatment of the metal of the piece of metal (beryllium copper or the like) imparting thereto in the known manner the required elasticity after the blanking or punching operations.

Abstract: A connector provides electrical and mechanical connection between the inner conductors of a pair of coaxial lines. The connector avoids the use of a slotted female conductor by either providing a slotted male conductor or by providing slotless conductors. The configuration allows a two layer construction of the connector so that the construction is simple and so that signals of higher frequency can be transmitted without severe signal degradation. In addition, the connector provides an electrical contact which is close to the interface between the two inner conductors so that the resonant frequency of the connector is sufficiently high as to avoid degradation of the electrical performance of the connector.

Abstract: A chip-like LC filter which comprises a cylindrical magnetic element having a through hole. A cylindrical capacitor element has a through hole and terminal electrodes formed on inner and outer peripheral surfaces thereof. A central conductor is inserted in the through holes of the magnetic element and the capacitor element, which through holes are aligned along an axial direction. The terminal electrode on the inner peripheral side of the capacitor element is electrically connected with the central conductor. Cap-shaped external terminal members are respectively provided on both end portions of the central conductor, so that the magnetic element and the capacitor element are located between the external terminal members.

Abstract: A cinch plug for connection to an electrical cable in audio or video systems has a contact pin and surrounding contact bushing each of which are formed of curved circumferentially disposed axially extending contact springs.

Abstract: A fixture for use in establishing electrical contact between a banana plug mounted on a cable and a snap fastener on a disposable skin electrode comprises a bottom flange provided with a sleeve adapted to receive the banana plug. A resiliently expandable through hole formed at the bottom of the fixture makes it possible to snap the fixture over the snap fastener of the skin electrode, with the through hole being of length so that the snap fastener will protrude into the passage and establish electrical contact with a banana plug inserted therein.

Abstract: A hammer assembly for incorporation in a hammer bank assembly useful in high-speed impact printers of the type generally employed in data processing systems is disclosed to comprise an impact tip carried on a rigid coil structure disposed in a permanent magnet field, a foot member for precisely, removably positioning the hammer assembly with respect to the hammer bank assembly, and first and second conductive spring members supporting the rigid coil structure from the foot member and, concurrently coupling the ends of the coil within the rigid coil structure to electronics associated with that particular hammer located within the impact printer. The first and second spring members serve to provide a restoring force to return a rest position within the hammer bank assembly after impact energization of the coil has been discontinued.

Abstract: A method of making single-piece contact springs by continuous punching from a metal strip. Each contact spring has in the finished state two spring arms which extend symmetrically relative to each other and are connected to a common connecting member. The spring arms have each a contact bend which are directed toward and are in contact with each other. The other end of the spring has a connecting post preferably provided with a press-in portion. A gap for the later formation of the spring arms is made during one of the punching operations of the blank in the plane of the strip as a scrapless punching cut. Simultaneously with the scrapless punching operation, one of the spring arms is bent out of the plane of the strip near the connecting member and is placed by a stamping operation into a position approximately parallel to the other spring arm which remained in the plane of the strip.

Abstract: A self-locking electrical banana plug comprising a main body member having an expandable plug at one end and expansion means operable to expand the plug at the other end, and means for receiving and clamping an electrical conductor to the body member, the expansion means, in operation, concomitantly expanding the plug and clamping the conductor.

Abstract: A micro-miniature electrical contact comprises a first contact portion having spaced cantilever contact leaves with distal ends adapted to mutually engage, together with outwardly bowed control longitudinal portions. When received in a mating socket the leaves are resiliently urged inwardly to effect desired receptacle engagement and electrical connection.In a preferred embodiment, the contact is formed by deep drawing a seamless, integral, generally cylindrical member in which a contact portion with leaves integrally joined at their distal ends is integrally formed with a receptacle portion adapted to engage an electrical conductor. Because of their construction, the provided contacts are adapted for repeated use without loss of resiliency.

Abstract: A device for making electrical connection in which the device can serve either as a clip or a plug. The device includes a pair of pivotally interconnected jaws which can open and be clipped onto a wire or electrical terminal, the jaws being biased toward each other. In one embodiment, each jaw is provided near its outer surface with an electrically conductive member defined by one or more resilient electrical contact elements which extend longitudinally of the corresponding jaw. The elements of each member are integral with a pair of semi-circular bands which are secured in any suitable manner, such as by soldering or spot welding, to the outer surface of the respective jaw. When the jaws are closed, the members mate with each other at the side edges to form a banana plug which can be inserted into a jack or other tubular recess. In another embodiment, the jaws have integral contact elements thereon which define a banana plug configuration when the jaws are closed.

Abstract: A low resistance electrical connecting assembly, each assembly including a plurality of operably arranged conductive elements, each element comprising a pair of relatively narrow, thin, outwardly convex, conducting contact surfaces supported on opposite sides of a latitudinal plane between them. The outwardly convex contact surfaces of each element are conductively associated to provide parallel current paths between source-side and load-side conductors in contact respectivley with opposite ones of said conductive surfaces of each element. Such elements may be embodied in the form of a helical coil of conductive wire, each ring of the coil constituting one element. Another embodiment may be individual disks of conductive metal arranged in stacking relationship. Any number of other embodiments are possible which provide a plurality of elements as described, thin, outwardly convex conductive surfaces on opposite sides of a latitudinal plane, in closely adjacent side by side arrangement.

Abstract: An improved connector assembly for interconnecting the high voltage cable output of a DC power supply to the anode socket embedded in the exterior surface of a cathode ray tube envelope wall, including a terminal having an inner end mechanically connected to the cable and electrically connected to the conductive core thereof and an outer end formed as a female connector, a generally U-shaped stamped spring metal clip having a pair of uniquely configured upstanding arms for electrically and mechanically connecting to the anode socket and having a male-configured connector integral therewith which mechanically and electrically connects with the female connector of the terminal, and a resilient cup having a large cavity which encloses the outer ends of the clip arms and a small cavity which snugly embraces the lower portion of the U-shaped metal clip, including the male connector thereof, and the female connector of the terminal.

Abstract: An electrical terminal for connecting a power supply section (35) to a circuit board (50) which requires no tools and utilizes minimal space on the circuit board (50). The terminal having mounting pins (14) which frictionally and electrically engage holes (30 in the circuit board (50) and a contact portion (18) which resiliently contact the power supply section (35), thereby effecting a positive electrical connection between the power supply section (35) and the circuit board (50).

Abstract: A circuit board pin in which the compliant portion has two beams spaced apart on each side of a slot. The beams have outward facing surfaces which are convex in lateral cross-section. In plan view and in side elevational view the convex surfaces extend outwardly beyond parts of the pin lying next to the compliant portion and in both views also the compliant portion tapers down onto these other parts of the pin beyond ends of the slot. The compliant portion is made from a preform having two beams by applying a deforming pressure against outer lateral edges of the beams and towards the slot to deform the beams inwardly while narrowing the slot and expanding the beams outwardly in side elevation.

Abstract: There is disclosed an electrical device including first and second electrical components and at least one but usually a plurality of longitudinally-dimensioned flexible electrical contacts. The flexible contact (or contacts) connect the first electrical component to the second electrical component. The flexible contact (or contacts) each have a center portion of greater flexibility than its two end portions. This greater flexibility occurs along, and laterally with respect to, the longitudinal axis of the flexible contact. The flexible contact (or contacts) serve to accommodate relative misalignment of the first and second electrical components. There is also disclosed a method of making the flexible contact.

Abstract: The contact element for an electrical plug connector has a plurality of contact springs disposed side by side, each such spring being a segment of a contact spring wire, one end of which is attached to a bearing piece. Each such spring has, in its middle region, a contact locus which provides contact with a cooperating contact piece. In order to substantially simplify the structure from a manufacturing engineering standpoint, a single structural unit is formed from a first metal strip which forms the bearing piece, a plurality of spacing members connected to the bearing piece and extending parallel to each other, and a second metal strip parallel to the first, which second strip forms the support piece.

Abstract: A contact element in the form of a spring contact jack or spring plug pin has a plurality of mutually laterally disposed spring contacts which can be attached at one end to a support piece and which are radially curved in order to provide contact with an opposing contact; and further relates to a method of manufacturing the contact element.

Abstract: The contact apparatus has at least two contact bodies and at least one segmented body. The latter possesses bars separated from each other by slots and having a curved central area. Furthermore, the bars have the form of a three-dimensional curve. In their end areas, the bars possess in each case a section curved in the opposite sense to said curved central area. Besides, the bars are linked together at their ends by means of edge strips. Moreover, the slots extend up to the curved section. In this way, points of contact clearly defined as regards their position and values are assigned to the convexity as well as the end areas of each bar. These measures lead to an improvement of the mechanical and electrical characteristics of the contact apparatus.

Abstract: An electrical connector pin for insertion into a socket of circular section is machined from a single piece of metal. The forward part of the pin has a constant cross-section along the major part of its length, being circular with two parallel flats which extend along its length. A slot extends across the forward part of the pin between opposite flats, dividing the pin into two prongs. The diameter of the socket is less than the diameter of the pin across its circular part but more than the width of the pin between the flats. In use, as the pin is inserted in the socket, it contacts the open end of the socket at four points between the flat and circular regions of the pin, gradually closing the slot at the tip until it is just open when inserted to its full extent.

Abstract: An improved connector assembly for interconnecting the high voltage cable output of a DC power supply to the anode socket embedded in the exterior surface of a cathode ray tube envelope wall, including a terminal having an inner end mechanically connected to the cable and electrically connected to the conductive core thereof and an outer end formed as a female connector, a generally U-shaped stamped spring metal clip having a pair of uniquely configured upstanding arms for electrically and mechanically connecting to the anode socket and having a male-configured connector integral therewith which mechanically and electrically connects with the female connector of the terminal, and a resilient cup having a large cavity which encloses the outer ends of the clip arms and a small cavity which snugly embraces the lower portion of the U-shaped metal clip, including the male connector thereof, and the female connector of the terminal.

Abstract: The method of manufacture of an electrical connector and the connector produced thereby employing slotted connecting cylindrical prongs with a pre-vulcanized elastomeric insert is made possible by stretching a strip of elastomeric material until it reaches a thickness of half that of the slots, inserting it in the slots and permitting it to contract in length and expand in thickness. A special strip of novel construction is adapted for use with an expanding tool to facilitate the operation. The resulting connector having prongs containing prestressed inserts and consequently possessing improved connecting properties is achieved.

Abstract: A compliant terminal comprises a pair of legs facing each other. Each of the legs is provided with an outwardly expanded portion in the intermediate portion. The expanded portions form an elastic contact portion for compressed fitting with a through hole. The leg portion is also provided with a pair of inward projections in the boundary region between the intermediate and free end portions. The inward projections of the two legs are substantially in contact. Therefore when the legs are inserted to the hole, the ends of legs outwardly swing about the contact point of the inward projections, and the compliant terminal is prevented from being withdrawn from the hole.