Abstract: A direct methanol fuel cell (DMFC) system is provided with a pump for pumping methanol into the cell. The pump is driven by carbon dioxide produced by the electro-chemical reaction at the anode of the fuel cell. Because the amount of CO2 generated is proportional to the power generated by the cell, and thus the amount of fuel demanded by the cell, the pump is self-regulating. The system may be integrated using microelectro-mechanical system fabrication techniques.

Abstract: A vacuum exhaust apparatus includes an oil-sealed rotary pump with a gas inlet for taking a gas into the pump. The gas inlet has a gas inlet flange to join with a flange of a gas inlet pipe for guiding the gas to the pump. An oil supply section connects with the gas inlet pipe and supplies an oil into the gas inlet pipe.

Abstract: The present invention provides a multi-stage vacuum pump which includes: a housing in which a plurality of pumping chambers are formed, the pumping chambers being arranged in series and being in fluid communication with one another, one of the pumping chambers which is at one end of the series acting as an initial stage pumping chamber, another of the pumping chamber which is at the other end of the series acting as a final stage pumping chamber, the housing being provided with an inlet port for sucking a gas from a space to be evacuated into the initial stage pumping chamber, the housing being provided with an outlet port for exhausting the gas from the final stage pumping chamber; Roots-type pump sections occupying the respective pumping chambers, each of the Roots-type pump sections having a pair of intermeshed Roots-type profile rotors; and a pair of shafts adapted for rotation within the housing about their lengthwise axes in contra-rotational direction, the pair of shafts being secured to the respective

Abstract: A hydraulic motor 10/110/210 has an end cover 12/112/212 including a first port 14/114/214 and a second port 16/116/216, and a gerotor drive assembly 18/118/218 which hypocycloidally moves a drive link 22/122/222. The motor's flow circuit comprises a working path (e.g., for providing rotational motion) from the end cover 12/112/212, through the drive assembly 18/118/218 and back to the end cover 12/112/212. Bolts 26/126/226 extend through registered openings in the end cover 12/112/212, the drive assembly 18/118/218 and a housing 20/120/220 and the bolts 26/126/226 are positioned in a circular array outside the motor's pressure vessel whereby the motor 10/110/210 has a “dry bolt” design. The motor's flow circuit can also comprises a non-working path (for cooling, lubrication and/or sealing purposes) which circulates fluid through chambers surrounding the drive train components.

Abstract: A roller vane pump, in particular suited for pumping fluid in a continuously variable automatic transmission of a motor vehicle, is provided with a pump housing (12) accommodating a carrier (4) rotatable around a central axis (4a) of the carrier in a direction of rotation by a pump shaft (5), on the periphery of the carrier (4) there is provided a slot (6), which extends in a substantially radial direction and accommodates an essentially cylindrically shaped roller element (7) having a roller diameter (DR) for interaction with a radially inner cam surface (2a) of a cam ring (2) encompassing the carrier (4) in radial direction. The cam surface (2a) is located at a radial distance (R) from the central axis (4a) that varies in dependence on an angular rotation (&phgr;) according to a cam curve (R{&phgr;}).

Abstract: An injection molding apparatus comprises a cell assembly that has a tiered frame. The tiered frame is provided with lower unit storage sections and upper unit storage sections. The lower unit storage sections are provided with holders, individually, and injection molding machine units are mounted on the holders, individually. The upper unit storage sections are provided with holders, individually, and injection molding machine units are mounted on the holders, individually. Material supply pipes, temperature control piping, etc. of the injection molding machine units are arranged in a layout space on the side of a back portion of the cell assembly.

Abstract: Molding equipment and related techniques for forming a golf ball with one or more deep dimples are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath are disclosed. Preferably, the deep dimples are at least twice the depth of conventional dimples, more preferably, three or four times the depth of the conventional dimples. The deep dimples may be spherical or non-spherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple.

Abstract: An apparatus for making a molded article containing an insert includes an upper mold half and a lower mold half for mating with the upper mold half to provide a mold cavity therein. Either mold half can include a recess, an elevator opening in a lower portion of the recess, and an inwardly directed lip at an upper portion of the elevator opening. An elevator mechanism is provided which includes a lifter for supporting an insert to be secured to the article during a molding operation, and a lifting arrangement for raising and lowering the lifter through the elevator opening such that a peripheral edge of the insert supported on the lifter is clamped between the lifter and the lip when the lifting arrangement raises the lifter.

Abstract: A furnace that combusts fuel, such as coal, of a given minimum energy content to obtain a stated minimum amount of energy per unit of time is enabled to combust fuel having a lower energy content, while still obtaining at least the stated minimum energy generation rate, by replacing a small amount of the combustion air fed to the furnace by oxygen. The replacement of oxygen for combustion air also provides reduction in the generation of NOx.

Abstract: Improved operational characteristics such as improved fuel efficiency, reduction of NOx formation, reduction of the amount of unburned carbon in the ash, and lessened tendency to corrosion at the tube wall, in a multi-burner furnace are obtained by reducing the flow rate of combustion air to the burners and selectively individually feeding oxidant to only some of the burners.

Abstract: NOx formation in the combustion of solid hydrocarbonaceous fuel such as coal is reduced by obtaining, from the incoming feed stream of fuel solids and air, a stream having a ratio of fuel solids to air that is higher than that of the feed steam, and injecting the thus obtained stream and a small amount of oxygen to a burner where the fuel solids are combusted.

Abstract: Apparatus for storing a combustible gas including a pressure storage vessel, a pressure relief valve communicating with the storage vessel for venting the gas from the vessel when the pressure therein is too high, and a catalytic reactor communicating with the pressure relief valve to catalytically combust the gas exiting the valve and thereby reduce the amount of such gas that enters the environment.

Abstract: A piezoelectric lighter includes a gas emission arrangement including a pair of jet nozzles and a gas emitting tube communicating with a liquefied gas storage respectively, a gas releasable valve extended from the liquefied gas storage for controlling a flow of gas to the gas emission arrangement, a pair of gas ejecting conduits connected from the gas releasable valve to the two jet nozzles respectively, and a gas ejecting duct connected from the gas releasable valve to the gas emitting tube. Therefore, the piezoelectric lighter is adapted for selectively producing either a pair of jet flames at the same time when the gas discharged to the two jet nozzles through the gas ejecting conduits or producing a visible flame when the gas discharged to the gas emitting tube through the gas ejecting duct.

Abstract: Knit candle wicks provide a stable, higher yield yet similar burn rate or flame height as compared to lower yield braided candle wicks by providing improved capillary flow as well as an increase in the functional surface area. In addition, candle burning safety is improved as the wicks of this invention provide a self-trimming wick that creates a more stable flame height and uniform wax pool diameter as the candle burns. In preferred forms, the knit wicks of this invention are a warp knit construction in which the interlocking loops run lengthwise in the direction of the wick material. In addition, the various warp knit constructions can comprise both interlocking loop or warp ends as well as weft or laid-in yarns.

Abstract: A detonation flame arrestor including an outer cylinder, an inner cylinder, and fill media. The outer cylinder and inner cylinder are secured to a canister flange on one end and include a domed face (cap) on the other end. On assembly, the inner cylinder secured to the canister flange is positioned inside the outer cylinder secured to the canister flange, altogether forming a canister. The fill media is inserted in the canister between the inner cylinder and the outer cylinder. Both the outer cylinder and the inner cylinder include a tapered spiral wound wire screen which forms their respective cylindrical circumferences. Contaminates are constrained between adjacent windings of the tapered wire screen.

Abstract: The present invention provides a burner tube. The burner tube has a proximal segment, a distal segment, a terminal end, and a plurality of fuel outlet ports. The proximal segment has a union region and is adapted to be connected to a fuel source. The terminal end of the burner tube is connected to the union region such that the terminal end is in fluid communication with the union region. The connection between the terminal end and union region forms a continuous burner tube, or a burner loop for the flow of fuel. An initial flow of fuel diverges in the union region into a first portion and a second portion. The first portion flows through the union region and downstream through the distal segment. The second portion of fuel from the fuel source flows through the union region and downstream through the terminal end.

Abstract: A system for repositioning teeth comprises a plurality of individual appliances. The appliances are configured to be placed successively on the patient's teeth and to incrementally reposition the teeth from an initial tooth arrangement, through a plurality of intermediate tooth arrangements, and to a final tooth arrangement. The system of appliances is usually configured at the outset of treatment so that the patient may progress through treatment without the need to have the treating professional perform each successive step in the procedure.

Abstract: A toothbrush which includes a handle with a head portion at one end, a recess in the head, a bristle pack located in the recess with the bristles attached by one end to the base of the recess, the recess opening being bounded by inwardly directed shoulders, and the outer extremities of the bristles lying in abutting relationship with the inner faces of the shoulders. There is a fluid supply line provided along or through the handle and communicating with the recess. Preferably, the bristle pack is formed by a number of clusters of bristles, it being the outermost clusters that are in close abutting relationship with the edges of the shoulders of the recess, and adjacent clusters at least at the edges of the pack being in close but spaced relationship.

Abstract: A versatile system for the manipulation of dental appliances is described that includes a grasping assembly coupled to an actuating assembly. Members of the grasping assembly are shaped to approximate contour of the dental appliance. An apical seating member is disposed upon the grasping assembly to facilitate the application of seating pressure. The grasping assembly may be removably or permanently coupled to the actuating assembly. Portions of the actuating assembly, the grasping assembly, or both the actuating and grasping assemblies may be shaped to facilitate distal, mesial, or both distal and mesial manipulation of the dental appliance.

Abstract: A material for modifying the optical properties of cells comprises a basic material and a modification substance distributed in the basic material at a prescribed concentration, wherein the basic material comprises a viscous fluid, a gel, a two-dimensional or three-dimensional porous substrate or a material which hardens in situ.

Abstract: A self assessing target with four quadrants and a method of use thereof. Each quadrant containing possible causes for why shots are going into that particular quadrant rather than the center mass of the target. Each possible cause is followed by a solution intended to help the marksman correct the problem causing the marksman to shoot in that particular area. In addition, the self assessing target contains possible causes for general shooting errors and solutions to the causes of the general shooting error. The automatic feedback with instant suggestions and corrections enables the shooter to improve their marksmanship.

Abstract: A method of mapping the going conditions for a racecourse comprises surveying the racecourse soil conductivity over the course using soil conductivity measuring means and mapping the conductivity data produced by the conductivity measuring means according to the locations at which the conductivity data were obtained, so as to produce a map of the racecourse showing variations in soil conductivity. The racecourse is then sectioned along its length so as to produce a series of zones, wherein the variations shown in the soil conductivity map are utilized in choosing the sizes of the zones, the going condition in each zone is determined and a map of the racecourse displaying the going conditions along the racecourse is produced.

Abstract: A computer-aided-educational method and system that consider a student's concentration level when teaching the student. The system monitors automatically more than once the student's concentration-sensitive behavior while the student is working on the study materials. Through monitoring the student's volitional or involuntary behavior, the system provides an indication on the student's concentration level. Based on the indication, the system could react accordingly. Reactions include, for example, providing rewards, punishments, and stimulation; or changing the study materials. The system can also react by asking the student a question to stimulate the student or to assess the student's understanding level. Based on the student's response, the system may change to more appropriate study materials, or presentation style.

Abstract: A rosary device which may be used during activities has a plurality of bead members. A string is slidably coupled to each of the plurality of bead members. The string is of sufficient thickness to prevent the plurality of bead members from freely moving. Connectors are coupled to the string for removably coupling the rosary device to an object.

Abstract: A device and method is provided for simulating the activities of an infant. The invention includes a mannequin having a simulator position therein for generating a plurality of simulated activities by the mannequin at preprogrammed timed intervals. Simulated duties such as diaper change, feeding and burping, and attention are generated by the simulator. A user must respond by inserting a proper response element into the simulator in order to terminate the simulated activity. Indicators are provided to inform of the user's abuse or tampering with the simulator.

Abstract: A pin grid array integrated circuit connecting device which including a substrate, a sliding slice, a guiding frame and a driving apparatus. Said substrate further includes multiple holes to hold pins of a integrated circuit package, multiple conductive positioning components in the holes to hold said pins and connect said pins electrically, circuit device with proper circuit layout and multiple electrical connecting spots on the bottom of said substrate which connecting said multiple conductive positioning components thru said circuit device. The extra electronic components placed on said substrate will provide the additional function. Said sliding slice is placed on the top of said substrate and can be moved relatively. Multiple holes are placed on said sliding slice and positioned correspondingly to the holes on said substrate. Said guiding frame is placed on at least the two opposite sides of said substrate which guide said sliding move linearly along the extension of said guiding frame.

Abstract: An electrical connector (1) for connecting a land grid array (LGA) chip (2) with a printed circuit board includes an insulative housing (12), a frame (11) engaged with the housing, and a plurality of terminals (13) received in the housing. The housing defines two adjacent sides (122, 123). A plurality of arcuate protrusions (1220, 1230) is formed on said sides. The frame has four sidewalls (110, 113, 114, 115) defining a central cavity (111) therebetween for receiving the LGA chip therein. Two adjacent of the sidewalls define a plurality of cutouts (1110, 1130) in respective inner faces thereof, corresponding to the protrusions respectively. The frame is mounted on the housing, with the protrusions being engagingly received in the corresponding cutouts. When the LGA chip is engaged with the connector, the protrusions elastically deform to accurately guide and securely fix the LGA chip in the connector.

Abstract: A high density connector comprises a receptacle housing having a base wall and at least one lateral wall defining a cavity. The lateral wall is configured to nest within a plug housing. A high density array of female electrical contacts is arranged in the cavity which are supported in the base wall and extend unsupported above the base wall to a given height. A single piece protection member is arranged in the cavity adjacent the base wall. The protection member has an array of openings in which the electrical contacts extend. The protection member has a thickness selected so that the electrical contacts do not extend beyond an outer face of the protection member.

Abstract: An electrical connector (1) includes an insulating housing (10), a number of terminals (20) received in the housing, and a pair of board locks (30) retained in the housing for securing the housing on a printed circuit board. The housing includes a body (11) having a middle section (110) and a mating tongue (12) extending from the middle section. The mating tongue defines a number of channels (120) receiving corresponding terminals. The body has a pair of arms (112) extending parallelly beside the mating tongue. Each arm includes a horizontally extending wall (1123) extending above the mating tongue. A space (13) is defined between the walls and the mating tongue for receiving a mating complementary connector.

Abstract: A lockable electrical outlet socket closure plug includes a plug housing including an inner plate and a socket blade appended to the inner plate and adapted to extend into a blade receiver opening formed in the electrical outlet socket. The closure plug further includes a retainer for selectively retaining the plug housing in a mounted position on an electrical outlet socket and a controller mounted for movement in the plug housing and arranged normally to reinforce the retainer to cause the plug housing to remain in the mounted position on the electrical outlet socket.

Abstract: Traditional embodiments of cable harness connectors also have, in addition to a locking slide, a locking claw, arranged in a U shape over a connector housing of a cable harness connector, and the two locking elements assume both open and closed positions. To permit more advantageous manufacture of such cable harness connectors, the function of the locking claw is integrated into a cover of the cable harness connector, which is placed on the connector housing, so that the cover and the other locking unit are combined, this function having previously been implemented by the locking claw. Therefore, the cover and the second locking mechanism are designed as a one-piece part.

Abstract: A power converter includes a transforming unit having pins outwardly projecting from the transforming unit, and a socket. An adapter in the power converter includes a first plug mounted on a first side of the adapter, and a second plug mounted on a second side of the adapter, wherein the socket on the transforming unit receives the first plug or the second plug. Pin cavities on the first side of the adapter, opposite to the second plug, provide a contact to receive the pins to allow the transformer unit to convert an input voltage to an output voltage. Pin cavities on the second side of the adapter, opposite to the first plug, provide a contact to receive one of the pins of the transformer unit to allow the transformer to convert the input voltage to the output voltage.

Abstract: A card insertion portion provided at a front of a housing, and guide portions provided at both sides of the card insertion portion are provided, the card includes a first wide and thin card and a second card narrower and thicker than the first card, the maximum width of the card insertion portion is formed to be substantially equal to the width of the first card, the maximum thickness of the card insertion portion is formed to be substantially equal to the thickness of the second card, and the guide portion is provided with a first guide surface to come in contact with a side portion of the first card to guide the first card to an installation position, and a second guide surface to come in contact with a side portion of the second card to guide the second card to an installation position.

Abstract: A coaxial connector includes inner and outer contact assemblies. The outer contact assembly includes a base securely mounted to a circuit board and a floating outer contact that can move both axially and radially relative to the base. The inner contact assembly includes a plunger connected to a signal carrying circuit element on the circuit board in a manner that permits transverse float. The inner contact assembly further includes a receptacle that can slide axially relative to the plunger. Annular insulators are disposed between the inner and outer contact assemblies. Additionally, resilient O-rings are provided between the inner and outer contact assemblies for urging the receptacle of the inner contact assembly in a mating direction relative to the plunger.

Abstract: An electrical connector (1) includes: an insulative base (10) having a top surface (104), a bottom surface (103), and a plurality of passageways (101); a cover (12) slidably mounted on the base; a plurality of conductive terminals (16) received in the passageways; and an actuating device (14). Each passageway is bounded by two opposite first walls (1018), two opposite second walls (1019), and a bottom wall (1013). Each first wall defines a through slot (1011), and one of the second walls forms a slanted guiding portion (1012) spanning from the top surface to adjacent the bottom wall. The bottom wall forms a chamfer portion (1014). The guiding portion and the chamfer portion cooperate to protect the corresponding terminal and the base from damage when the terminal is inserted into the passageway.

Abstract: An electrical connector (1) for electrically connecting an electronic package with a circuit substrate. The connector includes a base (2), a cover (3) slidably attached on the base, and an actuation device (4) for actuating the cover to slide along the base. The actuation device includes a camshaft and an operation lever (41). The camshaft is rotatably positioned between the base and the cover, and defines a locating recess (431) therein. The base includes a main portion (22) and a front portion (21). The front portion defines an engaging surface (23) for engaging with the cover. A locating slot is defined at the engaging surface, rotatably locating the camshaft of the actuation device therein. The front portion forms a locating block (25) in the slot. The locating block engages with the camshaft at the locating recess, to help prevent the operation lever from being over-rotated in either of opposite directions.

Abstract: A land grid array connector assembly (1) includes an insulative housing (2) and a securing mechanism. The securing mechanism comprises a frame (3) surrounding the housing, a pressing plate (4) movably attached to the frame, and an actuating lever (5) pivotally connected to the frame. The frame further comprises a pair of locating blocks (301). Each block has a locating slot (302) for receiving a locating portion (51) of the lever. The slot forms a slantwise groove which has a lowest portion and a highest portion. A tongue portion (303) is formed on the frame adjacent the locating block. A lower surface (3032) of the tongue portion is a continuous arc surface which can generate a pushing force to position the lever at the first and second points in the slot when the lever is at the open and closed positions respectively.

Abstract: An assembly is provided for retaining standard electrical plugs within receptacles in environments having vibration and shock conditions that loosen normal electrical plugs. The present invention includes an adapter with a first locking mechanism for locking the adapter to the electrical receptacle. The adapter contains a standard electrical receptacle to receive the power plug prongs of the power plug. In a preferred embodiment, a restraining collar is mounted adjacent the power plug and secured to the adapter with tie straps to thereby secure the power plug to the adapter.

Abstract: An electrical connector assembly of the present invention includes a first component for supporting a first electrical connector element; a second component for supporting a second electrical connector element inserted in the first electrical connector element to be fitted therein; a short-circuit element, fitted in the first component, for electrically short-circuit the first electrical connector element; and a locking element engageable with the second component in a locked manner. The locking element is so structured that when the second component is inserted in the first component to be fitted therein, the locking element can make the short-circuit element move back to its non-short-circuit position and also can move to engage with the first component. The engagement of the locking element with the first component allows the first component and the second component to be locked against disconnection.

Abstract: A electrical outlet protection device for preventing power cords from falling out or being pulled out of electrical outlets. The electrical outlet protection device includes a cover assembly including a first cover member having a main wall, top and bottom walls, and a side wall, and also including a second cover member having a main wall, top and bottom wall, and a side wall with the first cover member being in contactable relationship with the second cover member and with the cover assembly being adapted to be fastenable with fasteners over an electrical outlet; and also includes semi-circular support members being attached to the top and bottom walls of the first and second cover members for fastening the cover assembly to the electrical outlet; and further includes semi-circular pad members being disposed upon the first and second cover members for engaging a power cord being plugged into the electrical outlet.

Abstract: The base plate 31 of the connector housing is provided with the raised portion 50 that fits into one of the recessed portions 26 in the card 20 for the contact pads 27 when the card 20 is inserted. The raised portion 50 is made to function as a stopper to block the card from being inserted further when the card is wrongly inserted back to front, thereby preventing a possible deformation of the contact terminals on the connector side in the event that the card is wrongly inserted.

Abstract: Insulation-piercing fasteners are provided having a generally cylindrical shank, externally threaded along at least part of its length. The end portion of the shank is configure to engage an insulated electrical conductor and is formed with a hollowed end portion. The hollowed end portion has a generally cylindrical recess having a diameter less than the diameter of the shank. The wall of the hollowed end portion has at least one interruption. The width of the interruption is less than the maximum internal width of the hollowed end portion.

Abstract: A cable assembly is disclosed which has a cable extending along the cable assembly, and a strength member also extending along the cable assembly. At least one independent anchoring element is attached to one of the member ends of the strength member and has an opening provided therein. The strength member passes through the opening of the independent anchoring element and thus holds the independent anchoring element in place on a casing.

Abstract: A connector assembly including at least one connector coupled to a connector housing and, at least one trough disposed on two opposing sides of the housing, such that a wire coupled to the at least one connector passes through both troughs. The troughs operate to reduce the strain on the wire by shifting forces on the wire away from a wire wrap section where the wire is coupled to the at least one connector.

Abstract: An electrical connector (100) for being mounted to a mother PCB includes an insulative housing (1) defining at least one receiving slot (11, 12) for receiving at least one mating connector, a plurality of conductive terminals (31) received in the insulative housing and extending into the receiving slot, and an LED subassembly (4) attached to the housing. The LED subassembly includes an internal PCB (41), which is electrically isolated from the conductive terminals before being mounted to the mother PCB, and a pair of LEDs (40), which are electrically mounted to the internal PCB and which terminate to the mother PCB via the internal PCB.

Abstract: An electrical connector assembly (1) includes a receptacle connector (10), a clamping device (20) and a flexible printed circuit (FPC) (30) having an edge (301) with conductive elements (300) thereon. The receptacle connector includes an insulative housing (100) defining a central slot (104) in a top surface (101) thereof and terminal passageways (1041) communicating with the central slot receiving respective conductive terminals (110). The clamping device includes two clamping panels (200) and two connecting sections (210) downwardly extending from two ends of the clamping panels. The clamping device defines a space (214) between the clamping panels for receiving the edge of the FPC. The edge of the FPC and the connecting section of the clamping device are inserted into the central slot of the housing and the conductive elements contacting respective terminals. The clamping panels clamp the FPC and the connecting sections thereof engaging with the housing.

Abstract: A bussed electrical center for providing customizable current flow to electrical output components. An upper insulating layer has a first and second faces and exhibits a plurality of apertures through which are engaged male terminals pins, these further in operative communication with the electrical output components. A lower insulating layer has first and second faces exhibiting an apertured pattern according to a first specified configuration. A conductive grid overlays the first face of the lower insulating layer, an apertured pattern being defined in the grid according to a second specified configuration and further defined by interconnecting web portions, exposed by the apertured pattern in the lower insulating layer. Upon assembly of the insulating layers, with the grid stacked together, exposed web portions of the grid capable of being sectioned through the apertured pattern in the lower insulating layer and to establish a selected current flow direction across the grid.

Abstract: A stacked connector assembly (10) includes a first connector (12) and a second connector (14) vertically stacked on the first connector. The first connector includes a first housing (16) and a number of first terminals (20) arranged in the first housing. The second connector includes a second housing (51), a number of second terminals (58) received in the second housing and a grounding member (78) attached to a rear portion of the second housing. The grounding member has a front engaging portion (810) projecting forwardly beyond the second housing for mating with a corresponding ground contact of a complementary electrical connector and a base portion (80) projecting rearwardly beyond the second housing. A spacer (36) attached to a rear end of the stacked connector assembly has an upper portion (361) receiving the second terminals therethrough and a lower portion (362) receiving the first terminals therethrough.

Abstract: An on-board type connector which includes a housing 20 made of synthetic resin for holding terminals 10, and reinforcing metal plates 50 integrally having parts 54 to be fixed on board and parts 55 to be fixed to the housing which are adapted to be fixed to both sides of the housing 20 in a lateral direction. The housing 20 is provided, at both sides thereof in the lateral direction, with insertion slits 24a which open toward a bottom face of the housing. These parts 55 to be fixed to the housing are restrained from the back and the forth by a restraining part 25 of the housing 20, in a state where the parts 55 have been inserted into the insertion slits 24a from the bottom face side of the housing.

Abstract: An electrical connector (1) comprises an insulative housing (3) with a front surface (302) and a rear surface (303) and a locker (4). The insulative housing defines a plurality of passageways (305) and channels (308). A plurality of contacts (6, 7) is secured in the passageways and channels. First, second and third projections (34, 36, 38) are configured in rows and parallel to the front and rear surfaces. The locker comprises an inner surface (44) being attached to the housing and a plurality of grooves (400, 402) depressed from the inner surface. Each groove defines a protrusion (404, 407). The protrusions are retained between the first and second rows of projections (34, 36) before the connector is mounted to a PCB (2), and moved to securely engage with the third row of projections (38) after the connector is mounted to the printed circuit board.