Abstract: A plurality of longitudinally housed looped spring members (340) are pivotally supported by a wire (350) circumposed about a plurality of ratchet teeth (150) defining a contiguous succession of longitudinal peaks and valleys (154, 152) for interengagement, the spring members including a straight end portion (342) advanced around the peaks and valleys and a curved end portion (344) normally out of engagement with the ratchet teeth, the wire being supported in an annular groove (331) of a coupling nut (300) rotatably mounted to one shell (100) of an electrical connector assembly comprising a pair of shells (100, 200), the forward end face (222) of the second shell being drawn against the curved end portion (344) to drive the straight end portion (342) downwardly into the ratchet teeth when mating engagement has been achieved, the bias of the straight end portions (342) resisting rotation of the coupling nut.

Abstract: A coupling ring (30) including a coupling nut (40) circumposed around a plurality of serrations (18) and an unlocking sleeve (50) rotatably mounted to the coupling nut. An arcuately shaped lock member (60) carried by the coupling nut, in cooperation with a spring (66), allows rotation of the nut in a coupling direction and prevents rotation in an uncoupling direction, the lock member being pinned at one end (60a) to the coupling nut and free at the other end (60b) to pivot, the other end being provided with teeth (68) to releasably engage with succeeding of the serrations. The uncoupling sleeve (50) carries a lifter (54) having a free end (54b), the free end normally biased by a compression spring (52) into spaced-apart relation to lock member (60) and adapted to drive nut (40) in the coupling direction.

Abstract: A coupling member (30) includes four equiangularly spaced fingers (42) at one end and two deflectable tabs (50) at the other end which cooperate to couple a pair of connectors (10, 20) of the type having medial of their ends a flange (18, 28) one flange (18) being provided with four openings (48) for receiving the fingers therethrough and the other flange being of a smaller diameter than the sleeve inside diameter for receiving the tabs thereover, the coupling member telescoping over the connectors and causing the tabs to deflect over their flange (28) and the fingers to be radially deflected and abut their flange (18).

Abstract: A shielded electrical cable (5) is secured and grounded to a connector housing (60, 63) by placing a ferrule (50) around a portion of the cable (5), connecting the shields (10, 20) together and captivating the ferrule between two plates (71, 72) which are secured within the connecting housing (60, 63).

Abstract: This invention provides a circuit for automatically advancing the timing of an ignition system independent of engine speed. The invention is characterized by timing circuit (100) which initiates a timing change in reponse to a computer output signal (60) by operating a transistor (125) in its active region as a resistor.

Abstract: An electrical connector (60) is disclosed of the type to which a coaxial cable (22) having a braided conductor layer (26) is adapted to be clamped to establish electrical and mechanical connections, characterized by a simplified cable clamping means. The clamping means includes an outer contact-clamping body (72) formed with a clamping cone (112) integral with an outer contact portion (68). In preferred embodiments, the contact-clamping body (72) is engagable to be held against rotation by flats (94) formed on the outside diameter of an intermediate section (93) thereof, connector coupling sleeve (62) movable into mating engagement therewith, and to be retracted to allow the coupling sleeve (62) to be rotatable during coupling with a mating connector.

Abstract: A vibration resistant mounting bracket (10) that secures a power transformer (20,30) within the housing of an aircraft ignition system. The bracket (10) has a single source (11) that extends through the winding (30) and partially around the core (20) of the transformer and is characterized by a pair of downwardly facing surface portions (44, 45) and a pair of upwardly facing surface portions (52,53) which are located in parallel planes with each pair of surfaces being axially offset from each other.

Abstract: A two piece contact assembly characterized by a method of making the assembly by press fitting a stamped and formed inner sleeve (10) into a cold drawn tubular member (20) to provide an electrical contact having a seamless pin type contact area.

Abstract: This invention provides a contact stop for an electrical connector of the type having front insertable contacts. The invention is characterized by a plate (40) of hard dielectric material located adjacent the rear face of a contact retaining insert (30). The plate (40) has a plurality of passages (41) each of which terminate at one end in a forwardly extending solid wall tubular tower (42) which has a forward end or a shoulder (43) which abuts against a rearwardly facing shoulder (23) on a contact (20) in the passage (31) of the insert (30) to limit rearward movement of the contact after it has been inserted into the insert (30).

Abstract: An electrical connector including a pair of interfittable shells 11, 21, an annular shield ring 60 for protecting electrical contacts carried therein from RFI/EMI interference and means for mounting the shield ring to one of the shells, the one shell 21 having a radial flange 22 forwardly of an annular groove 50 sized to receive an annular band 62 of the shield 60. The mounting means are solderless and comprise an annular compression ring 40 sized to circumpose the annular groove 50 and be plastically deformed therein. The annular groove includes a frusto-conical wall 54 which serves to control plastic deformation of compression ring 40 so as to invade the groove 50 to press against shield band 62 and thereby secure the ring therein. Means 63 for resisting rotation of the shield ring are provided.

Abstract: An improved electrical connector of the type having a cylindrical shell 22 having a radial flange portion 26, a longitudinal key portion 29 and a frequency shielding ring 49 sized to fit over the shell and mount adjacent to the flange portion, characterized by one of the portions having a keyway 50 having a pair of abutment faces 51, 53 and the shielding ring including a detent portion 46 having a pair of spaced end faces 47, 49, a first of the end faces being configured to abut the first of the abutment faces and the second of the end faces being configured to abut the second of the abutment faces when the detent portion is fit within the keyway, whereby abutting the faces causes the ground ring to be properly oriented on the shell and prevented from rotating relative to the shell.

Abstract: A fuel injection pump (100) including a plunger (2) and a piston (1) movably disposed in a pumping chamber (17), means for initiating (3, 5) fuel injection and means for terminating (13, 30, 29) fuel injection, the plunger periodically pressurizing fuel in a pressure chamber (44) and the piston (1) spaced from the plunger and allowing a metering chamber (16) to fill with a metered quantity of fuel to be injected to an engine. The means for initiating injection comprise a pilot valve (5) having a solenoid to selectively operate between either of two states and a spool valve (3) movable between first and second positions in response to the state of pilot valve (5), the first position filling the metering chamber with the metered quantity of fuel. The pilot valve (5) determines the fuel quantity to be delivered to the engine relative to a signal from an electronic controller. An accumulator (4) is pressurized during each cycle of the plunger to provide pressurized fuel during a metering phase.

Abstract: A one-piece dielectric insert 10 including an array of through passages 15 having formed at opposite ends thereof integral cavity means for removably securing a longitudinally slit C-shaped contact retention clip 29, the clip removably positioning a pin/socket contact for mating. An insert cavity 23 is defined by constriction means at one passage end for reducing the clip diameter and for preventing rearward movement of the clip and an abutment 21 at the other passage end for limiting forward movement of the clip. The constriction means comprises a pair of angularly separated shoulder housings 17 with each housing being coaxial with the passage and having a concave surface for engaging the clip to reduce the clip diameter.

Abstract: An electrical connector (20) having disposed around a rearward end portion (25) thereof a plurality of springs (36) in their respective spring cavities (39) and including an operating sleeve (40) circumposed therearound for movement rearwardly to a releasing position, a sealing adaptor (50) mounted to the connector and having a radial collar (56) positioned rearwardly of the cavities and a moisture seal (60) carried by the sleeve and having an inner portion (80) contacting the collar thereby moisture sealing a region around the springs and preventing ice formation in the cavities. The seal is generally V-shaped, with an outer portion (62) being carried in an annular recess (48) of sleeve (40).

Abstract: An electrical conductor (10) having at forward end portion (F) of the conductor an integral electrical contact portion consisting of a plurality of fine, axially aligned wire strands (21), each wire having an acutely angled end surface (22) for mating with another electrical contact, said contact wires being an integral part of and continuous with the wires of said conductor in a rear portion (R). Preferably, the wires in the forward portion of the conductor are held radially together by a sleeve or holder which is inserted over the forward end, around the wires and crimped in place, separating the rear portion (R) of the conductor, which generally has insulation (30) around the conductor for a portion of its length from the forward contact portion.

Abstract: A cable termination apparatus (90) for use in locating and terminating an electrical cable (10) of the twin-axial type to an electrical connector (50), the cable having a pair of insulated wires (20,30) having inner conductors (22, 32), the apparatus being characterized by as comprising a body (91) of conductive material including a passage (95) for receiving and locating one of the wires (30) and a radial slot (96) for receiving and locating the inner conductor (22) of the other wire (20), the passage (95) extending through the body and having a generally frusto-conical wire entry portion, (97) the slot (96) extending axially inward from one end of the body and intersecting with the frusto-conical portion (97) to provide stress relief to the conductor (22) when terminated within the slot (96) by solder (98).

Abstract: An electrical terminal element (34) for electrically interconnecting with a conductive V-shaped blade (52), the terminal element (34) characterized by including a plurality of spaced jaw members (42, 44) for receiving the blade (52) inserted therebetween, the jaw members defining a slot (46) therebetween and all of the slots (46) being aligned with and in register with one another.

Abstract: An electrical conductor (10) having at forward end portion (F) of the conductor an integral electrical contact portion consisting of a plurality of fine, axially aligned wire strands (21), each wire having an acutely angled end surface (22) for mating with another electrical contact, said contact wires being an integral part of and continuous with the wires of said conductor in a rear portion (R). Preferably, the wires in the forward portion of the conductor are held radially together by a sleeve or holder which is inserted over the forward end, around the wires and crimped in place, separating the rear portion (R) of the conductor, which generally has insulation (30) around the conductor for a portion of its length from the forward contact portion.

Abstract: A modular connector assembly (50) combination characterized by a printed circuit board (60) having a plurality of apertures (66) extending between the surfaces thereof and with a circuit being printed on one of the panel surfaces; an interconnection device (70) mounted to the printed circuit board, the interconnection device being of dielectric material and associating a plurality of passages (76) extending therethrough with the apertures; and a contact (10) mounted within some of the passages of the interconnection device, the contact being of the type comprising a holder (20) of solderable material, a plurality of axial wires of conductive material secured medially of their ends (32, 34) in the holder and a sleeve (40) of non-solderable material extending forwardly of the holder, wavesoldering about an end portion of the holder extending through the aperture (66) mounting the contact and the interconnection device to the printed circuit board.

Abstract: An electrical connector assembly (10) and method of making wherein the connector does not require a separate contact but comprises end strands (52) of a multistranded electrical conductor (wire 50). The strands (52) are formed into a loop (56) having overlapping portions (57) and the overlapping portions are secured together by a weld. The forward portion of the strands (52) are straightened into axial alignment and the ends (53) of each strand cut and provided with angled end surfaces (54). The conductor (wire) so prepared is inserted into a molded housing (20) having two mating halves (30, 40), at least one of which is provided with a channel (33) including a loop cavity (62) and a projection (60). The loop (56) of the conductor is mounted over the projection and the two connector halves secured together to complete the connector assembly.