Abstract: An electrical connector has an insulating body centered on an axis, carrying at least one conductor, and having a radially outwardly directed tooth having a radially outwardly directed outer surface with an apex spaced at a predetermined radial distance from the axis. A nut rotatable about the axis on the body bears axially forward on the body and has a radially directed tooth axially level with the body tooth and having a radially inwardly directed inner surface with an apex forming on rotation of the nut about-the body an orbit having a radius from the axis greater by a predetermined spacing than the predetermined radial distance of the body-tooth outer-surface apex. A radially compressible ring surrounding the body overlies the tooth outer surface. The ring has a cross-sectional diameter equal to more than the predetermined spacing between the nut tooth and the body tooth so that for the nut tooth to angularly pass the body tooth it must compress the ring to the predetermined spacing.

Abstract: A base body with a grip portion at an angle to a contact carrier can be molded in one piece and contacts in the contact passages can be provided in an inactive position until the leads of a conductor are inserted into channels intersecting the contact passages. Then the contacts are pressed into their active positions in which pointed ends of the contacts pierce the insulation of the leads and make electrical contact with the core thereof. The potting mass is filled into the space around the conductor within the sleeve segment of the gripping portion and can extend onto the conductor to form a buckling preventer. The connection is particularly suitable for connection to sensors and the like.

Abstract: A connector has a plastic base part forming a transversely elongated slot open in a longitudinal insertion direction and formed with a plurality of seats spaced along and opening into the slot. Respective contact elements fixed in the seats each have a deflectable contact arm with a contact point exposed in the slot at the respective seat to one side of the slot and a rigid pivot arm to an opposite side of the slot having an outer end spaced longitudinally outward from the respective contact point. A pivotal clamp part having a pusher bar extending along the slot inward of the arm outer ends is pivoted on the arm outer ends between an open position extending upward away from the base part and with the pusher bar spaced widely from the contact points and a closed position closely juxtaposed down on the base part and pressing a cable down on the points for contact of cable conductors therewith.

Abstract: An electrical connector has an insulating body centered on an axis, carrying at least one conductor, and having a radially outwardly directed tooth having a radially outwardly directed outer surface with an apex spaced at a predetermined radial distance from the axis. A nut rotatable about the axis on the body bears axially forward on the body and has a radially directed tooth axially level with the body tooth and having a radially inwardly directed inner surface with an apex forming on rotation of the nut about the body an orbit having a radius from the axis greater by a predetermined spacing than the predetermined radial distance of the body-tooth outer-surface apex. A radially compressible ring surrounding the body overlies the tooth outer surface. The ring has a cross-sectional diameter equal to more than the predetermined spacing between the nut tooth and the body tooth so that for the nut tooth to angularly pass the body tooth it must compress the ring to the predetermined spacing.

Abstract: A connector for electrically connecting a wire to a conductive strip on a face of a printed-circuit board has a dielectric housing formed with a cavity, with a slot extending from the cavity and adapted to receive an edge of the circuit board, and with a hole opening outward from the cavity and adapted to receive the wire. A conductive one-piece spring element in the cavity has a front arm extending at an angle at least partially across the slot and a rear arm extending across the hole, formed with an aperture alignable with the hole, and deflectable between a tensioned position with the aperture aligned with the hole and a rest position with the aperture offset from the hole. The wire is engageable through the aperture and hole in the tensioned position. Alternately the rear arm presses the wire directly against the conductive strip of the circuit board engaged in the slot.

Abstract: A connector has a housing formed with a cavity, with a slot extending from the cavity, adapted to receive an edge of a circuit board, and having a width substantially greater than the circuit-board width, and with a hole opening outward from the cavity and adapted to receive the wire. A conductive rocker in the cavity has a front arm extending out of the cavity through the slot, a rear arm in the cavity adjacent the hole, and a central pivot bump between the ends of the rocker. A spring in the cavity engaging the pivot pin presses the rocker laterally across the slot with the rocker front arm bearing on the strip of the board received in the slot and presses the wire received in the hole against the rocker rear arm.

Abstract: A contact strip for printed circuit boards, especially in a sandwich construction has E shaped contact members with contact shanks of successive contact members along the strip extending in opposite directions and a central strap anchored in the insulating body of the contact strip. The contact members are held in place by a central long codirectional with the contact shanks but laterally offset therefrom by a distance x which also corresponds to the spacing between successive contact shanks.

Abstract: An electrical connector assembly has a rigid body having an outwardly directed face and formed with a plurality of pockets opening at the face, respective electrical contacts fixed in the pockets of the body, and a cover formed of a flexible elastomeric plastic completely surrounding the body except at the pockets. This cover is formed unitarily with an annular skirt projecting outward past the face and with a web bridging the skirt except at the pockets and lying against the face of the body.

Abstract: A plug-in proximity switch has a tubular housing having a hollow interior and an open end, a circuit board in the housing interior having an edge adjacent the end and a face provided adjacent the edge with a plurality of circuit paths, a socket fittable with the open housing end, a socket body in the socket adjacent the board edge, and a plurality of connector elements fixed in and projecting inward from the body and directly engaging the circuit paths of the board. The board is rigidly held in the housing by a mass of hard potting compound filling the housing interior around the board at least at the edge thereof.

Abstract: A plug member for a connector of the type in which the plug member is inserted into a coupler at an angle and then swung into its end position, has a sleeve portion guiding the cable as it is inserted so that the conductors of the cable pass into channels of a portion of the plug formed with windows through which the conductors are exposed and can be engaged by contacts of the coupler passing into these windows.

Abstract: An electrical terminal strip comprises an insulating body having a plurality of connector compartments, a corresponding number of clamp members constructed as compartment liners each having a clamp passage in which an electrical conductor is insertable and a threaded hole for receiving a clamp screw. Each of the clamp members is provided with a clamp bracket having both a conductor engaging element and at least one solder connector pin. The clamp member is insertable through its solder connector end into the connector compartments of the insulating body where it is held undetachably, while the clamp bracket is subsequently inserted through a lateral opening in the insulating body in a direction opposite to the direction the conductor is inserted so that the conductor engaging element is in the clamp space. No other components or assembly steps are required to unite the conductor clamp member and clamp bracket in the insulating body, but a base plate may or may not be a part of the electrical strip.

Abstract: A connector strip comprises a row of swivel members each of which has a swivel portion held on a housing by a contact band provided with a keyhole window through which a conductor can be inserted through a guide passage into a hole within the pivot portion so that rotation of the swivel member entrains the conductor into the cutting slot of the window to make electrical contact and to mechanically enter the conductor to the contact.

Abstract: A mount secures a high-wattage miniature relay having a plurality of high-amp connection prongs and of control-voltage connection prongs to high-amp wires and to a circuit board. The mount has a dielectric body constructed to fit on the board and formed with respective seats for the prongs, and respective high-amp passages each having an outer end opening outward and an inner end opening at the seat for the respective high-amp prong. Respective low-amp conductors extend from the seats of the control-voltage prongs and engage in the board. Respective metallic high-amp conductors extend in the passages and have inner ends constituted as sockets for the respective high-amp prongs and outer ends constituted as connectors for the respective high-amp wires. The high-amp conductors are unitary with the respective sockets. In addition they can be unitary with the respective connectors. The connectors can be wire clips provided, like the connectors on circuit breakers, with respective wire-clamping screws.