Abstract: There is disclosed a stacked electrical connector assembly (20) for mounting on a printed circuit board (108). The stacked electrical connector assembly includes a bracket (26) having first and second bracket members (90,96). The bracket has a shield member (28) electrically commoned with at least one of the first and second bracket members. A first electrical connector (22) is mounted on the first and second bracket members with the housing (30) thereof on a first side of the shield member (28). A second electrical connector (24) is mounted on the first and second bracket members with the housing (60) thereof on a second side of the shield member (28). The contacts (44,74) of each of the first and second electrical connectors are interconnectable with traces (110) on the printed circuit board when the assembly is mounted thereon.

Abstract: A multicontact electrical connector (2) comprises an insulating housing (4) defining a plurality of pairs of adjacent rows of contact receiving cavities (18 and 20). In the upper cavity (18) of the middle row of superposed pairs of cavities (18 and 20) is a shorter contact element (38), a longer contact element (36) being supported in the cavity (20) immediately therebelow. Each longer contact element (36) has a bowed contact surface (42) which is nearer to the mating face (12) the housing (4) than the bowed contact surface (42) of the shorter contact element (38). The contact surfaces (42) of the contact elements (36 and 38) lie in slots (6,8,10) for receiving respective contact members (74,76,78) of a mating connector (66).

Abstract: Closed end rivet with slots in shank is assembled to flange of an electrical connector and subjected to axial compression to radially expand exposed portion of shank and thus assure compliant fit in mounting hole through printed circuit board.

Abstract: A tooling assembly (1) comprises an upper tooling assembly (4) a lower tooling assembly (6) and a base plate (8). The upper tooling assembly (4) is connected to a press ram and the base plate (8) is connected to the press frame. The lower tooling assembly (6) comprises a pivotable wire shearing comb (34) and a stationary wire shearing comb (36). In the use of the tooling, the pivotable wire comb (34) is moved to an open position and a connector (2) having slotted plate contacts (162) projecting from opposite sides of the connector (2) is laid on the fixed comb (36) and the pivotable comb (34) is then pivoted to a closed position. Wires (W) to be terminated, are inserted through slots (82) in the pivotable comb (34) and through slots (100) in the stationary comb (36). The lower tooling assembly (6) is then laid on the base plate (8) with one of the combs ( 34 or 36) uppermost.

Abstract: A stacked electrical connector assembly (2) is disclosed of surface mounting on a circuit board (CB). The assembly comprises a sheet metal supporting bracket (4) having superposed upper and lower connector mounting lugs (20 and 24). An upper standard electrical connector (38) is mounted to the upper mounting lugs (20), a lower standard pin header connector N) being mounted to the lower mounting lugs (24). The pins (54) of the pin header connector (10) are connected to contact tails (46) of the upper connector (38) by means of a flat flexible cable (12). A lower standard multi-contact electrical connector (8) is mounted to the lower lugs (24) in front of the pin header connector (10) and has contact tails (76) projecting below the bracket (4).

Abstract: There is disclosed an electrical connector (20) having a mating face (26) and a rear housing face (28) and a plurality of contact receiving passages (32) extending therebetween. A spacer plate (22) extends rearwardly from proximate the rear housing face (28) to a rear face (52) and extends laterally between first and second flanges (202,302). The spacer plate (22) has a plurality of solder tail receiving channels (42) extending forward from the rear face (52) toward the rear housing face (28) for receiving one or more solder tails (40) of contacts (34). A plurality of contacts (34) secured in the housing (24) with each contact (34) having a solder tail (40) defining side profile edges (90,92). The channels (42) extend through the spacer plate (22) from a first surface (76) to a second surface (404) and are further defined by opposed sidewalls (400,402) having portions in the region where solder tails are positioned that are substantially the same width.

Abstract: Apparatus for measuring the normal force (F.sub.n) exerted on a pin by a receptacle contact. The normal force measuring transducer (20) has a support beam (34) and a sensing beam (50). Sensing beam (50) has a monocrystalline silicon element (30) and may include beam element (40). Piezoresistive elements (E.sub.1, E.sub.2, E.sub.3 and E.sub.4) are atomically bonded to element (30) using techniques of solid state diffusion. Fine lines (76) of conductive material interconnect the piezoresistive elements to connection pads (GP.sub.1, GP.sub.2, GP.sub.3 and GP.sub.4). The support beam (34) and sensing beam (50) have a deflecting space (70) therebetween and two supports (56,58) therealong. Normal force applied to the beams causes a change in the resistance of the piezoresistive elements indicative of the magnitude of the normal force.

Abstract: There is disclosed an electrical connector (20) having a mating face (26) and a rear housing face (28) and a plurality of contact receiving passages (32) extending therebetween. A spacer plate (22) extends rearwardly from proximate the rear housing face (28) to a rear face (52) and extends laterally between first and second flanges (202,302). The spacer plate (22) has a plurality of solder tail receiving channels (42) extending forward from the rear face (52) toward the rear housing face (28) for receiving one or more solder tails (40) of contacts (34). A plurality of contacts (34) secured in the housing (24) with each contact (34) having a solder tail (40) defining side profile edges (90,92). The side profile edges (90,92) of the solder tails (40) are tapered through a limited length (420,448) from a wider width to a narrower width. The channels (42) extend through the spacer plate (22) from a first surface (76) to a second surface (404) and are further defined by opposed sidewalls (400,402).

Abstract: A self-regulating heater includes an electrically-conductive substrate (11), having a magnetic surface layer (13) of one skin depth, folded 180 degrees to define two heater sections joined by a fold section. The magnetic material has a considerably higher resistance than the substrate material. The surface of the two sections clad with the surface layer are in closely spaced parallel relation and connected in series by the fold section (23) such that a constant amplitude alternating energizing current flows in opposite directions through the two sections at any instant of time to thereby establish an electric field between the two heaters. The field concentrates current flow at the two facing surfaces. Depth of the current is determined by the skin effect phenomenon and increases significantly at temperatures above the Curie temperature of the magnetic material.

Abstract: An electrical connector (20) is disclosed which includes a dielectric housing (24) having first and second contact receiving channels (40) with each channel defining a pair of side walls (154,156). A rib (158) on the housing separates the first and second channels (40) and extends between respective side walls (154,156) thereof. A first contact (22) is received in the first channel (40) with the first contact defining an axis (112) and having first and second side edges (100,102) on opposite sides of the axis. The first side edge (100) has a barb (108) extending therefrom away from the axis (112). The second side edge (102) has a barb (110) extending therefrom away from the axis (112) at a location spaced along the axis (112) a distance (122) from the barb (108) extending from the first side edge (100). The barb (108) extending from the first side edge (100) engages a side wall of the channel that forms the rib (158).

Abstract: Spaced contact pads (23,43,83,84) on a printed circuit board (19,45,85) are soldered to respective spaced contacts (21,41,51,81,82) in a cable (230,50) or connector assembly (40,80) by means of respective spaced connecting members (15,48,57,70,92,94,96,98,100,102,104,106) interposed between contacts to be soldered. The connecting members are typically electrically and thermally conductive finger-like projections formed as part of a heater body (10,60,55,47,91) and are readily severably from the heater body after soldering to thereby remain part of the final solder connection. A presecribed amount of fusible material (e.g., solder) is pre-deposited on the connecting members and/or contacts and is melted when the heater is actuated. The heater body may be a self-regulating heater in the form of a copper substrate (11,61,65) having a thin surface layer (13, 63,67) of magnetically permeable, high resistance alloy.

Abstract: A daisy chain connector (10) and method of using the connector (10) are disclosed. The connector has a housing having contacts (16) secured therein. A pair of terminating covers (56,58) are provided for applying termination force to conductors (48) of a multiconductor round or flat cable (46). The conductors (48) are formed into two loops with the connector therebetween. A terminating cover (56,58) is positioned in each loop (52,54), the conductors are positioned relative to the covers (56,58) then the covers (56,58) are pressed toward each other terminating the conductors to insulation displacement portions of the contacts (16) and simultaneously securing the covers (56,58) to the connector housing (20).

Abstract: A diode tuned resonant circuit (42) with an inductor (L1) a first variable reactance diode (VAR1) connected in parallel with the inductor (L1), and a second variable reactance diode (VAR2) connected in series with the parallel combination of the inductor (L1) and first diode (VAR1) is used in an oscillator circuit. The resonant frequency of the circuit may be adjusted over a relatively broad frequency range while maintaining a relatively constant Q-factor by applying a biasing voltage to the first and second diodes (VAR1, VAR2).

Abstract: There is disclosed a connector (20) including dielectric housing (24) having a mating face (26) and a rear housing face (28) with a plurality of contact receiving passages (32) extending therebetween. A spacer plate (22) extends rearwardly from proximate the rear housing face between first (202) and second (302) flanges. The spacer plate (22) has a plurality of solder tail receiving channels (42) extending forward from the rear face toward the rear housing face for receiving one or more solder tails (40) of contacts (34). The channels (42) define therebetween beams (120 or 122) having detents (70) for seating a solder tail (40). A plurality of contacts (34) are secured in the housing (24). The spacer plate (22) has a first slot (200) between the first flange (202) and a first channel (242) adjacent thereto.

Abstract: There is disclosed an alignment and blind mate assist shroud 22,22' having a body section securable to a shrouded header 20,20' and an extension section adapted to extend beyond the shrouded header 20,20'. The body section has means cooperable with the shrouded header for securing the shroud 22,22' to the shrouded header 20,20'. The extension section has guide means 112,114 which taper inwardly toward the walls 30,32,34,36 for guiding a complementary connector into the shrouded header 20,20'.

Abstract: A shielded, stacked electrical connector assembly comprises an upper electrical connector (2) and a lower electrical connector (4) having respective insulating housings (6,8). Each housing (6,8) has cavities (18) in which are secured electrical terminals (20) having terminal legs (46 and 50) which extend from a terminal receiving face (24) of the housing (6 or 8). A one piece, insulating, connector support housing (10) comprises an upright frame (54) from which projects a connector support (86) supporting the upper connector (2), the lower connector (4) being disposed beneath the connector support (86). The terminal legs (46) of the upper connector (2) extend through notches (80,82) in terminal leg spacer plates in the frame (54). The terminal legs (50) of the terminals (20) of the lower connector (4) extend through notches (44) in a terminal leg spacer plate (42) of the housing (8) of the lower connector (4).

Abstract: A traffic analyzer (16) for a local area network (10) having multiple stations (14) that exchange message packets (24) receives selected ones of the message packets (24). The analyzer (16) stores a message packet table (TABLE(0)-TABLE(6)) and generates a table pointer (P) as a function of both the source address (S) and the destination address (D) of each received packet (24). A record (S,D,N) of each received packet (24) is stored in the table entry (TABLE(P)) associated with the table pointer value (P) for the respective received packet (24), where N is equal to the number of received packets having the source address S and the destination address D.

Abstract: A dielectric housing (4) of a circular, shielded DIN electrical connector (2) comprises a central block (26) with terminal receiving cavities (18) extending axially therethrough and which cooperates with a hood (30) and a base (28) of the housing (4) to define a circular chamber receiving a circular, stamped and formed metal shield (8). The shield (8) has projecting therefrom a uniplanar latch arm (80) having a head (81) which latches positively against a latching shoulder (88) in a slot in the base. The latch arm (80) is deflected in its own plane by a cam surface in the slot as the latch arm (80) is inserted thereinto and then resiles to allow the head (81) to latch against the shoulder (88).

Abstract: Simultaneous solder connections of multiple electrical terminals to respective electrical leads is achieved by conducting thermal energy from an actuable heater body (10,40,50,60,70) to the multiple connection sites via the terminals (20,21,45) themselves, the terminals being formed integrally with the heater body. The terminals are scored, perforated, etc., to facilitate severence from the heater body after soldering. The preferred heater body takes the form of a copper substrate (17,27,41,51,61) having a skin depth surface layer (19,29,43,53,63,65) of magnetically-permeable, high resistance alloy. Alternating current of constant amplitude and high frequency is passed through the heater body and concentrated in the surface layer at temperatures below the Curie temperature of the alloy. For higher temperatures the current is distributed through the lower resistance substrate to limit further heating.

Abstract: There is disclosed a pin connector (20) for insulation displacement termination of conductors of a multiple conductor cable (156) has a housing (22) having insulation displacement contacts (26) secured therein. Each of the insulation displacement contacts (26) has an insulation displacement portion extending beyond a cable receiving face (48) for terminating to conductors of a multiconductor cable. A termination cover (28) securable to the housing (22) is adapted to be pressed toward the cable receiving face (48) to terminate conductors of the cable (156) to respective contacts (26). The termination cover (28) has a pivotally mounted latch/eject lever (30) secured thereto for latchingly securing a mating connector to the pin connector. The housing has extensions (250) with protrusions (252) receivable in pivotal mounting apertures (120) to secure the termination cover (28) to the housing (22) at the termination position.