Abstract: A three-way nip contact type contactor has first, second and third contacting pieces connected together at their base end portions and arranged side by side in rows extending toward their top end portions. The first and second contacting pieces are arranged to form two sides of a triangle and the third contacting piece is arranged to form the remaining side. A male terminal is nipped by and among the first through third contacting pieces to obtain a contacting relation between the male terminal and each of the first through third contacting pieces. The third contacting piece is provided at its top end portion with a pressure bearing portion. The third contacting piece, when an external force is applied to the pressure bearing portion, is displaced in an opening direction against its elasticity to permit the male terminal to be inserted into and among the first through third contacting pieces.

Abstract: A power take-off assembly utilized in electric power distribution systems includes stabs, multi-surface conductor connectors, conductive straps, and a circuit breaker. The multi-surface connection conductors and straps each consist of a single copper or aluminum piece that facilitates electrical connection between the circuit breaker disposed within the power take-off assembly and the receiver stabs. The receiver stabs protrude from the power take-off assembly and engage with the power source thereby providing electric power to the circuit breaker.

Abstract: An electrical connector comprises an insulation housing (30) having a plurality of contact-receiving cavities (33) in which electrical contacts (10, 10') are to be inserted and secured. Each of the contacts (10, 10') includes a base section (11, 11') for engaging with a first wall (31a) of the cavity (33), a contact-receiving section (12), a conductor-engaging section (13) and an engaging section (14, 14') having engaging members (22, 22') being pressed into channels (34) in the third and fourth walls (32a, 32b) of the cavity (33) thereby securing the contact (10, 10') in the cavity (33). Wing members (15) have ends (15a) disposed in spaces (38) in the cavity (33).

Abstract: A female electrical contact is disclosed to include an elongate body having a terminal portion at one end and a receptacle portion at the other end for receiving a complementary male pin. A pair of cantilevered arms are provided of substantially equal length and in opposed relationship to each other with contact portions at their distal ends. The cantilevered arms are axially offset from each other in the longitudinal direction of insertion of the complementary male pin, whereby the male pin engages the contact portions sequentially. The cantilevered arms are bowed inwardly so that the contacted portion of one of the arms engages the other arm under a preload.

Abstract: An electrical connector socket in accordance with one specific embodiment of the invention has multiple beams extending forwardly from the forward edge of a barrel portion, the beams converging toward a central longitudinal axis. The beams have forward ends or tips configured to receive and grip a conductor. A shield disposed between adjacent beams and projecting forwardly from the forward edge of the barrel reduces the size of the open area between adjacent beams, thereby preventing tangling of the sockets during tumbling or other processing thereof. Pursuant to alternative embodiments, the side edges of each beam are configured to diverge from the forward edge of the barrel to an intermediate beam section. From there, the side edges converge (or diverge, in accordance with one of the alternative embodiments) toward the tip. In either case, the open area between adjacent beams is reduced sufficiently to prevent tangling of the sockets during processing thereof.

Abstract: A female contact for an electrical connector in which the contact comprises a resilient, conductive beam with a curve of constant radius. One end of the beam bears against a flat wall section of a bore into which a male contact pin is inserted to make contact. The strip curves away from the wall, and as the pin is inserted it flattens the strip against the wall.

Abstract: An electric connector requiring decreased insertion and withdrawal force, even when including groups of 20 to 40 terminals. The connector includes a male portion, a female portion into which the male portion fits, and a cam mechanism. With the cam mechanism, the male casing fitted in a covering portion of the female casing may be slid horizontally between its original fitting position and a male and female terminal contact position, parallel to the fitting surface of the female casing, so as to slide the male and the female terminals out of or into contact with each other with less force than was required previously.

Abstract: A female electrical terminal is disclosed for mating with a male electrical terminal. The female terminal includes a forward mating end for receiving the male terminal along a front-to-rear axis and a rear terminating end for connection to another electrical element. The forward mating end includes two pair of spring contact arms each having a dimple projecting transversely of the axis for engaging the male terminal. The dimple on one pair of spring contact arms is offset axially of the dimple on the other pair of spring contact arms to reduce the insertion force on the male terminal. Reinforcing ribs extend axially on the spring contact arms. The distances between the reinforcing the ribs and the dimples on the respective spring contact arms are substantially equal whereby the normal force on the male terminal by each dimple is substantially equal.

Abstract: This invention relates to an electrical socket contact, and more particularly to a solderless electrical wire terminal of a socket connector which can be formed from a sheet of conductive material and a portion for receiving a pin contact element is completely surrounded by four side walls.

Abstract: An electrical terminal structure is provided by a pair of hermaphroditic terminals. In one form of the invention, each terminal is bifurcated to define a pair of elongated semi-cylindrical arms of different diameters defining pairs of elongated spaced edges to provide a four-point contact array. In another form of the invention, a pair of hermaphroditic terminals each are trifurcated to define a central semi-cylindrical arm and two outside arms, combining to provide a six-point contact array.

Abstract: A socket contact is constituted by a general tubular-shaped body and a pair of opposed resilient members formed by splitting the front portion of the general tubular body with a pair of slits. One of the opposed resilient members has an inner surface having a pair of contacting portions at the predetermined peripheral intervals. The other opposed resilient member has an inner surface having a contact portion in confronting relation with a peripheral center of the pair of contacting portions of the one of the opposed resilient members. As a result, it is possible to clamp a male contact to be inserted stably between the opposed resilient members and then to keep a posture of the male contact with high contact pressure against the male contact.

Abstract: A high reliability socket contact assembly is provided, of the type that has a seamless exterior, which has tines with closely spaced initial and final points of pin contact engagement, and which has a closed entry region limiting the size of pin contacts that can be inserted, which can be constructed at low cost. The assembly includes a seamless barrel (12, FIG. 3) having a cylindrical cavity (16) extending into its front end, and a clip (20) formed of sheet metal rolled into a tube and lying in the cavity. The clip has a rearward portion (32), tines (42a-42d) extending forwardly from the rearward portion and having free forward tips, and a forward portion. The tips (56) of the tines have radially inner edges (60) lying on a first imaginary circle, and the forward portion of the barrel forms a closed entry region (72) having an inside diameter no greater than the diameter of the first imaginary circle, to prevent entry of pins of a diameter that could damage the tines. In one barrel (FIG.

Abstract: A resilient connector capable of being inserted into a printed circuit board comprises a clamp head portion and a leg portion. Moreover, the clamp portion has a long arm, a short arm and a base connected between the long arm and the short arm. The leg portion is formed by longitudinally severing a part of the intermediate portion of the clamp head portion, which extends from an intermediate position of the long arm to an intermediate position of the base. Thus, the printed circuit board can be inserted into, and brought into contact with, the contact surface of the clamp head portion. Subsequently, the printed circuit board may be pivoted to a second angular position from a first angular position. Preferably, the second angle is selectively designed at a 25 degrees orientation to assure the conservation of space.

Abstract: A fuse socket is provided with a plastic housing having a fuse cavity for receiving an automotive fuse. The housing includes a pair of terminal receiving cavities for receiving the blades of the fuse. Blade receiving terminals are mounted in the respective terminal receiving cavities of the housing. Each blade receiving terminal includes a pair of opposed contact beams extending from a base and converging toward one another. Contact surfaces are defined at the locations of minimum distance between the contact beams. The terminal further includes a generally U-shaped assist structure having a bight generally adjacent the base of the terminal and having a pair of arms extending from the bight and being unitarily connected to locations on the contact beams remote from the base. Areas on the contact beams between the mating end and the base of the terminal are separated from the assist structure.

Abstract: A multi-pin grid array socket connector (20) features a contact (40) including spring arms (58) which flex to reduce binding caused by out of place pins (16) of a pin grid array (12) inserted and withdrawn therefrom facilitating high pin count arrays to be mated with low overall mating forces.

Abstract: A socket has two slots formed in an upper side of a casing and communicated with two chambers formed in the casing. A conductor is located in each of the chambers and includes a vertical member, a bent member parallel to the vertical member, and a resilient member disposed below the bent member. The middle portions of the prongs of a plug can be stably held between the vertical member and the bent member, and the lower portions of the prongs can be pressed by the resilient member and can be stably held in place by the resilient member.

Abstract: A contact element having a cutting section for insulation displacement connection of an insulated electrical conductor. The contact element being folded from a flat sheet of electrical conducting material, having a generally rectangular part which bears a lip projecting from one of its sides provided with a cutting slit in the end face and an angular piece having a part connected to said rectangular part and extending essentially parallel to said lip, and having a part which is at right angles thereto and faces away from said lip. The last mentioned part being provided with a further cutting slit in the end face. By appropriate folding of said flat sheet, a contact element being provided having a cutting section for side-piercing of an electrical conductor.

Abstract: Method and apparatus for making an electrical device including a contact supported in a housing having a space within which at least part of such contact may move, wherein the contact is placed with respect to a mold core that resiliently deforms the moving part of the contact to a condition it ordinarily would be expected to take during use in connection with another contact and cooperates with at least such moving part of the contact to form a composite core that is placed in a mold cavity to mold a housing about part of the contact and to at least part of the contact while the composite core defines the space within which the moving part of the contact can deform during use. An electrical connecting device is made by the aforementioned process.

Abstract: The terminal comprises a receptacle portion (2) having a channel shaped body (8) provided with contact spring (14), and a backing spring support (6) secured to the body (8) and having a pair of backing springs (24) engaging the contact springs (14). The backing spring support (6), which is also channel shaped, is secured about the body (8) by means of two pairs of flanges (34) which are peened over to engage the free longitudinal edges (38) of the body (8). Longitudinal movement of the backing spring support (6) relative to the body (8) is prevented by lugs (40) provided on the longitudinal edges (38) of the body (8) and which project between the flanges (34) of the pairs of flanges (34 ).

Abstract: A contact assembly in which holes of a contact pin support member carry a plurality of contact pins.

Abstract: A female connector to be used in combination with a male connector to make electrical connection in a high voltage circuit. The female connector has a cylindrical case made of insulating material. A holder made of elastic material is inserted into the case and fixed therein. The holder is formed with a cavity which is open at one end, and a female terminal is disposed in this cavity. The female terminal has a plurality of spring strips at one end adapted to elastically hold a male terminal, and a leader portion at the other end. The leader portion is exposed beyond the end of the holder opposite to the open end. The leader portion has a lead wire connected thereto, the lead wire being led out of the case. The open end out of which the lead wire is led is sealed by a sealing member made of insulating resin.

Abstract: An electrical connector 10 for mating two blade-shaped members 120,130 includes a dielectric spacer member 38, a plurality of discrete electrically isolated first terminal members 68 and at least a plurality of discrete electrically isolated second terminal members 88 secured to each opposing major surfaces 40 of spacer member 36 for electrical interconnection of first and second electrical articles; and means insulating associated said first and second terminal members from each other. Each first and second terminal member 68,88 includes first and second cantilevered spring arms 70,76,90,96 respectively extending outwardly in opposite directions from a respective intermediate terminal portion 74,94, the plurality of contact arm of first terminal members 68 defining a first and second contact arm arrays 80,84 and the plurlaity of contact arm 90,96 of second terminal members 88 defining third and fourth contact arm arrays 102,104.

Abstract: An electrical connector (2) has a dielectric housing with contact terminals (22) which extend therethrough. The contact terminals (22) are provided to electrically connect a mother board (4) to a daughter card (6). A board-receiving opening (20) is provided in the housing for reception of the daughter card (6) therein. Proximate to the board-receiving opening (20) are latch receiving openings (24) which are dimensioned to receive insertable latch members (40) therein. The latch members (40) are manufactured from material having the desired resilient and strength characteristics, thereby insuring that the latch members (40) will be effective over many cycles. Each latch member (40) has a resilient section (42) for cooperating with the daughter card (6) and a mounting section (44) for cooperating with the mother board (4). The resilient section (42) is able to accommodate a range of board sizes without taking a permanent set.

Abstract: A high reliability low cost connector has flat retainers blanked from an electrically conductive sheet metal and inserted into an opening in an electrically insulating body. Each retainer has a post at one end extending from an opening at one side of the body and has a pair of integral wings spaced from each other in a plane at its opposite end disposed in the opening at an opposite side of the body. Spring clips are blanked and formed from an electrically conductive sheet metal spring material and are inserted into the body openings so loop portions of the clips fit between the pairs of retainer wings in each opening and are biased into resilient electrical engagement with the retainer wings. Each clip preferably has two pairs of juxtaposed spring leaves integral with the loop spaced at 90.degree. relative to each other around a common axis to grip a terminal inserted between the spring leaves. The loops are also formed with interruptions in each loop in a common location between two adjacent spring leads.

Abstract: In an IC socket in which contactors are disposed along the inner wall surface of an insulating housing chamber into which a leg portion of an insulating cover is inserted, each contactor has one end portion bent in the direction of insertion of the leg portion to form a folded-back portion and has lugs which project out from both marginal edges of the contactor near the bent portion. In the inner wall surface of the chamber there are formed engaging recesses corresponding to the contactors. Each contactor is fixedly disposed with its bent portion held in contact with the inner wall surface of the chamber and with the lugs engaged with the engaging recesses in the inner wall surface of the chamber.

Abstract: A dual-beam receptacle socket contact is provided for conductively engaging a pin contact to couple the pin contact to an electrical circuit. The two pin-engaging beams of the socket contact are oriented to lie in mutually orthogonal planes. The beams are configured and arranged to maintain electrical contact with a pin contact inserted therein when subjected to shock or vibration. A flat pattern is provided for producing a plurality of socket contacts that are arranged in nested relation so that the center-to-center spacing of the socket contacts match the center-to-center spacing of the contact-receiving openings formed in an electrical contact housing. Preloading tabs are provided in a second embodiment of the invention.

Abstract: The electrical terminal serves to receive blade connectors of the Faston type and consists of a metal plate in which at least one perforation is formed by means of a punching operation and into which project at least two oppositely inclined resiliently deformable contact tongues, adapted to snap-engage a respective Faston connector, with respective flared ends; the tongues extend in a direction away from the plane of the plate and project from a first face thereof in a converging manner such that the flared ends are disposed substantially tangentially with respect to one another and form on a second face of the plate opposite the first a V-shaped seat adapted to receive the connector and having an aperture angle lying between 75.degree. and 108.degree..

Abstract: A hollow generally tubular female electrical connector is formed from a sheet metal blank to define a body member having a rectangular cross-sectional configuration including opposed pairs of side walls, characterized by the formation of two pairs of opposed inwardly-extending contact tongues that are arranged in longitudinally spaced relation for successive engagement by a male connector, whereby two different longitudinally-spaced contact planes are provided to afford reliable safe electrical contact with the male connector. Preferably, the contact tongues of one pair are formed from body side walls that are orthogonally arranged relative to the side walls from which the other pair of contact tongues are formed, whereby the pairs of contact tongues are arranged at 90.degree. relative to each other.

Abstract: The invention relates to an electrical connecting clamp for connecting an electric conductor to an electrical device. The clamp has a substantially U-shaped body having a midsection to which conductor can be connected by means of a clamping screw. One arm of the body ends in an insertable blade. A resilient contact element is formed on the other arm for contact with an insertable blade or a pin. Such a resilient contact element can be provided by forming the other arm with an opening and providing bevelled lead-in parts extending in the direction of insertion.

Abstract: An electrical socket for interconnecting a pin grid array to a printed circuit board includes an insulative housing having a plurality of apertures extending between upper and lower faces, the socket apertures have disposed therein, terminals for receiving the pins of the pin grid array in an electrically interconnected condition. A pin receiving portion of the terminal includes a circular band portion with resilient contact arms extending downwardly therefrom. The band portion includes a seam which allows for the expansion of the seam to relieve the stress in the band cuased by the deflection of the contact arms. The center of the circular band portion is also moveable to allow the pin receiving portion to realign itself to allow the reception of misaligned pins.

Abstract: The electrical connector forming a plate over plate arrangement is configured by a connector body, a plurality of female pins, male pins, and mount plates. Vertical through holes for insertion of the male pins and lateral holes for the female pins are provided with the connector body and intersecting respectively in the body, wherein a female pin each having a bifurcate portion at its tip is inserted into the lateral through hole so that the bifurcated portion is located at the intersection, and a male pin mounted on another plate to be connected is inserted in the vertical through hole. The bifurcated portion of the female pin each makes a contact with the male pin, when a plate mounted with male pins is approached closely to a plate mounted with a female pin-inserted connector body.

Abstract: A dual flat-spring electrical contact includes a contact receptacle which contains a separation gap and on which spring prongs protrude on one side while the cable connector protrudes on the other side. The contact receptacle is rigidly locked against expansion, as in the area of the separating gap, during insertion of a contact pin between the prongs because on a receptacle wall, in the area of the separating gap, there protrudes a T-shaped cover plate for which there is provided a holding recess which adjoins an adjacent contact receptacle wall.

Abstract: An electrical contact clip for a wiring device includes an inside and outside contact members. Each of the contact members includes a terminal portion adapted to be electrically coupled to wiring, a resilient contact portion for electrically engaging a mating contact element, and an intermediate portion extending between the terminal portion and the contact portion. The coupling members are interlocked adjacent the intermediate portions. The contact portions are preformed such that, when the contact members are interlocked, the contact portions engage and press against each other and bend about an axis transvese to the longitudinal axes of the contact members.

Abstract: A precision apparatus for controllably shearing a thin workpiece of material to make devices such as electrical contacts of the character having specially configured spaced apart tongues adapted to mate with plug connectors of standard design. The apparatus is designed to rigidly support the workpiece except in the precise area of the shear during the entire shearing step.

Abstract: A high contact force, high elastic response range pin-receiving electrical contact is provided in a pin-receiving contact including a base portion and a pair of spaced apart cantilever beams which extend forwardly from the base to a pin-receiving end. A pair of inwardly directed contact surfaces are defined on each cantilever beam facing the opposed beam for slideably, electrically engaging an inserted pin terminal. In accordance with the invention, a resilient beam support member extends from and interconnects the pin-receiving ends of the cantilevered beams. The resilient beam support member provides a significantly improvement in the elastic response range of the pin-receiving contact by enabling each cantilevered beam to endure a greater outward displacement before a minimum yield in the beam occurs while providing a greater normal force against the pin.

Abstract: A connector assembly is provided for automotive fuel injectors or temperature sensors. The connector comprises an insulator housing having a plurality of locking members disposed therein for locking engagement with conductive terminals. The housing is constructed to prevent improper orientation of the terminals therein. The locking members are further constructed to prevent insertion of a second terminal until the first terminal has been properly and fully seated and locked within the insulator housing. A TPA (terminal position assurance) component can be engaged on the insulator housing prior to insertion of the terminals to define a subassembly for shipment to a final assembly location. Movement of the TPA component into a second position on the housing assures proper positioning and alignment of the terminals therein.

Abstract: A co-axial table connector includes a wire-seizing mechanism that includes a pair of spaced, wire-seizing elements. An outer end of each element is angled inwardly so that both outer ends converge symmetrically with respect to each other. A cam member slidably fits over the elements and has divergent surfaces which come into camming contact with the convergent ends. This forces the elements inwardly and causes them to grip the end of a co-axial wire.

Abstract: The present invention concerns a spindle-receiving jack for forming an elecrtrical connection, the said jack comprising at least three resilient tongues defining an opening for forcibly passing the stem of the spindle and shaped in such a manner that each of them has its own resonance frequency.

Abstract: The invention is directed to a socket (2) having an improved contact area (24) which allows a pin (4) to be inserted therein at an improper orientation relative to the axis of the socket (2). Coined edges (28) of beams (16, 18) prevent the corners (32) of the pin (4) from contacting the beam (16, 18), thereby ensuring that electrical engagement is provided between the embossments (24) provided on the beam (16, 18) and the flat, highly finished surfaces (26) of the pin (4). The embossments (24) are configured to be easily reproducible and durable to last over many cycles. A lead in surface (44) provided on the embossments (24) prevents excessive wear on the embossments (24), as well as providing for easy insertion of the pin (4) into the socket (2).

Abstract: A modular connector (40) has a polyester housing (42) with a rubber grommet (43) through which pins (12) crimped to wires (48) pass to plug into sockets (46). The housing (42) has an array (50) of receptacles (52) for the sockets (46). The sockets (46) have a cylindrical beryllium copper alloy body (54) with cantilever spring elements (56) positioned at 180 degrees with respect to each other on the body (54). The body (54) has a distal end (60) with three fingers (62) extending from the distal end (60). The three fingers (62) are positioned on the body (54) at 120 degrees with respect to one another and so that they are radially displaced with respect to the cantilever spring elements (56). The fingers (62) incline from the distal end (60) of the body (54) so that the tips (64) are contiguous to axis (66) of the body (54) when pins (12) are not plugged into the sockets (46). Body (54) of each socket (46) engages a common bus element (70).

Abstract: A low profile socket connector for use in making connection with printed circuit boards utilizing a contact element having a female contact portion including a stepped portion extending substantially parallel to a body portion and a curved contact piece extending from the stepped portion toward the body portion and a second contact piece extending from the body portion toward the first contact piece affording a double wipe with a pin element.

Abstract: An electric contact terminal consists of a stamped and bent metal sheet part. It has a bottom and two sides connected to said bottom and extending laterally inwardly to constitute a ceiling whereby an elongated cage-like part is defined. Each of the sides has an internal wall laterally connected to an external wall in tight contact therewith by an 180.degree. bend. Each internal wall has a front cantilevered contact portion projecting forwardly in the direction of elongation, while each external wall has a front flap inwardly bent back about an edge orthogonal to the direction of elongation. Each flap retains a respective one of the cantilevered contact portions out of contact with the other contact portion.

Abstract: A cantilever contact is disclosed of the type adapted to be incorporated into a switch system or array, which comprises at least a strip line comprising a plurality of like cantilever contacts arranged in end-to-end, overlapping relationship with each other. The strip line of such contacts is adapted to be connected to a transmission system, which has a characteristic impedance. The cantilever contact includes first and second ends, a first portion adjacent to the first end affixed to a support member, a second spring portion disposed intermediate to the first and second ends, a third contact portion disposed adjacent to the first affixed portion and on the other side of the first affixed portion with respect to the second spring portion, and a fourth contact portion disposed adjacent to the second end and freely suspended by the second spring portion with respect to the support member for contacting a third contact portion of an adjacent contact in the strip line.

Abstract: An electrical component housing assembly having a main housing body (2) containing a matrix (12) of receptacle cavities (34) being adapted to accommodate mating single receptacles (4) or mating double receptacles (6). The electrical receptacles include polarizing tabs (170, 270) which are received in polarizing slots (40) of the receptacle cavities (34) upon the condition that the receptacles are properly oriented with respect to the receptacle cavities. Locking tabs (172, 272) located on the receptacle (4, 6) respectively engage with the recessed channels (42) and walls (43) to secure the receptacles within the cavities (34). A locking bar (8) interacts with a locking member (37) that engages cutout portion (168, 268) of a receptacle (4, 6) to further secure the receptacles within the cavities.

Abstract: A receptacle content comprises a pair of opposed leaf spring members having first spring arms provided with outer contact members and second spring arms extending along the first spring arms provided with inner contact members.An electrical connector includes a dielectric housing in which electrical receptacle contacts are arranged in rows with contact members of the contacts in the rows being staggered so that upon matable connection with a complmentary electrical connector the electrical connection between the respective electrical contacts of the matable connectors is sequentially completed.

Abstract: A zero insertion force electrical contact assembly is provided. The assembly comprises a bifurcate contact and a trifurcate contact. The bifurcate contact includes a pair of parallel contact beams cantilevered from a base. The contact beams include cam surfaces adjacent outwardly disposed portions remote from the base. The contact beams further include contact surfaces facing one another. The trifurcate contact includes a base, a central contact post extending from the base and a pair of cam arms extending from the base and on opposite sides of the contact post. Inwardly facing portions of the cam arms include converging cam surfaces. The cam arms and the contact posts are dimensioned to enable the contact arms to be disposed between the cam arms and around the contact post with little or no contact forces. Upon sufficient insertion, however, the respective camming surfaces will cause the cantilevered contact beams to be urged toward one another and into electrical contact with the contact post.

Abstract: A bus bar stab and insulator assembly for a motor controller has a two-piece housing and a three-piece stab finger clip. The housing base has a number of partitions which define pathways for the stab fingers. The housing cover is slidably mateable with the base and has a tab for receiving a self tapping screw. The stab fingers extend from the housing for making contact with bus bars. The stab finger clip has two fingers with interlocking tabs secured together with a screw which also connects one or more connector cables to the clip. The fingers are constructed of copper alloy and do not require the use of springs.

Abstract: An electrical junction system for automotive internal wiring has a wiring board provided with branching conductors formed by a multiplicity of bus bars on an insulation plate, the branching conductors being adapted to be connected to electric wires in a wiring harness to form branching electric circuits. The electrical junction system has a printed circuit board detachably mounted on the wiring board, the printed circuit board generally or inclusively carrying a plurality of circuits incorporating a multiplicity of function parts which are used semi-permanentally such as relays and associated control elements.

Abstract: A low insertion force mating electrical contact structure is provided in a male terminal including a final contact portion and a forwardly extending lead-in portion having a gradual twisted cross section relative to the final contact portion. In a preferred embodiment, the male terminal is adapted to mate with a dual contact cantilever spring arm female terminal. Opposed smooth-milled surfaces on the male terminal extending through the lead-in portion to the final contact portion engage the female contact portions and gradually cam the female contacts outwardly to provide reduced insertion forces on the male pin during insertion.

Abstract: The invention features an insulative contact locking device for an electric range. When the heating coils of the range are caused to experience many heat cycles, the constant expansion and contraction of the heating terminals often causes a loosening of the power contacts. The invention comprises a pair of spring-biased contacts that positively hold the terminal ends in secure mechanical and electrical contact with the power wires.