Abstract: A connector assembly having a receiving housing, a fitting housing and a retainer. The fitting housing is inserted into the receiving housing and is held in engagement position by the retainer. However, if one or more electrical terminals, within cavities in the fitting housing, is not fully inserted into its locked position, the retainer is held in a temporary position wherein a portion thereof projects outwardly of the fitting housing. This portion engages the end face of the receiving housing. The end face is preferably perpendicular to the insertion direction or at an acute angle thereto. As a result, the receiving housing does not distort even if excessive insertion force is applied to the fitting housing and/or the retainer.

Abstract: An inertia locking connector including elements which provide resistance to fitting the male and female connectors together. A consistent operating feel is obtained, even if the locking arm is released by the user. A resistance arm, independent of the locking arm, engages a rib of the male connector. A detent which is engaged by the locking arm is located on the same surface of the male connector as is the rib. The latter acts as a temporary stop for the resistance arm. Therefore, the user must exert substantial increased pressure to cause the resistance arm to flex out of contact with the leading edge thereof. As a result, the increased force builds momentum in the moving connectors so that the locking arm rides positively over the detent into its proper locking position.

Abstract: This invention aims to provide a waterproof casing which can keep its waterproof function under a great change of temperature. In the waterproof casing, a lid (20) which covers an opening in a body (10) is provided with a pipe (24) which intercommunicates an interior and an exterior of the casing. A porous waterproof filter (25) closes a port (24a) in the pipe (24). Air in the body (10) is expanded and contracted under changes in temperature. However, only air can pass through the filter (25) into and out of the body (10) with water being precluded, thereby waterproofing the interior of the casing.

Abstract: In a card edge connector, rotating pins are formed on the inner surfaces of the side walls of a box-shaped outer housing, while cylindrical bearings are formed on the outer surfaces of the side walls of inner housings in which electrically conductive terminals are accommodated. The inner housings are swingably held with the rotating pins engaged with the cylindrical bearings. The cylindrical bearings have cut-outs in the cylindrical walls which are opened in the direction of insertion, so that, as the inner housings are pushed into the outer housing, the rotating pins are engaged with the cylindrical bearings through the cut-outs. The inner housings are urged by spring members in such a manner that the abutting parts of the terminals are moved away from terminals formed on the connecting end portion of a printed circuit board. When the connecting end portion of the printed circuit board starts to enter the outer housing is started, the connecting end portion gently touches the abutting parts of the terminals.

Abstract: A waterproof box-like casing including, a box-like body having an opening, a lid for closing the opening and having a communication hole, and a bulkhead member for covering the communication hole hermetically. The communication hole provides communication between the inside and outside of the box-like body. Furthermore, the bulkhead member expands volume when the air inside of the waterproof box-like casing expands because of thermal expansion and contracts volume when the air inside of the waterproof box-like casing contracts because of thermal contraction.

Abstract: A card edge connector includes inner housings that accommodate electrically conducting terminals. The inner housings are rotatably supported within a box-like outer housing. A rotatable range is regulated by projected portions of the respective housings being abutted against each other, so that an opening of the outer housing is kept open to allow an end portion of a printed board to be inserted. In addition, the terminals do not come in contact with each other, so that the circuit is kept from being shorted. When the insertion of the end portion into the outer housing is started, the upper inner housing rides over the end portion slightly. However, as the end portion is further inserted to the depth of the outer housing, introducing cams formed on a hood enclosing the end portion cause the upper inner housing to rotate with a slight insertion force, thereby causing the terminals to be urged into full engagement with the end portion of the printed board.

Abstract: A first connector is installed on an upper surface of a printed wiring board. A plurality of tabs is inserted into each inserting opening of the printed wiring board. The tabs are soldered on a lower surface of the printed wiring board. Then, a lever-holding casing holding a lever therein is installed on the connector.

Abstract: This invention prevents lowering of working efficiency and an abnormal deformation, a breakage and the like of conductive terminals upon coupling a printed circuit base plate to a card edge connector in a card edge connector assembly. When a card edge connector 10 is inserted into an mouth 4 in a base plate holder 1, sliding edge portions 27 ride on ramp faces 5a on ribs 5 to pivot a pair of inner housings 20. Then, contacting portions 22a of first terminals 22 engage with second terminals on opposite sides of a printed circuit base plate 2. The printed circuit base plate 2 enters smoothly between the contacting portions 22a without causing an elastic deformation in the portions 22a and gouging the plate 22 due to their contact.

Abstract: An electric connector assembly comprising plug and socket connectors adapted to be connected together. The socket connector includes a socket connector housing having an end portion adapted to be received within the receptacle in the plug connector housing and also having parallel passageways defined therein so as to open outwardly from the end portion thereof. Each passageway accommodates therein a socket terminal member. A retainer is releasably mounted on the end portion of the socket connector housing. This retainer carries at least one contact bridge member engageable with the socket terminal members to establish an electric circuit between the socket terminal members when the socket terminal members have been inserted completely into the passageways and the retainer has been completely mounted on the end portion of the socket connector housing.

Abstract: The solvent recovery apparatus includes an adsorption tower having a gas adsorption element; a gas supply pipe for supplying a solvent-containing gas to the adsorption tower; a steam supply pipe for supplying steam to the adsorption tower; and a solvent recovery pipe for recovering a removed solvent. Disposed at the solvent recovery pipe are a condenser and a specific-gravity separating unit for recovering a liquefield solvent. An intermediate liquid storing unit is disposed between the condenser and the specific-gravity separating unit, and has a valve adapted to be automatically opened when the intermediate liquid storing unit stores a liquid of which amount exceeds a preset value, so that the liquid flows into the specific-gravity separating unit. With this solvent recovery apparatus, organic solvent gas or flon gas may be recovered.

Abstract: A connector block for injectors for an internal combustion engine comprises a rod-like main stem section of a heat-resistant rigid resin having a connector portion for a wire harness and a required number of injector connecting portions disposed at predetermined intervals that are molded as integral parts thereof, and tab-like terminals are made exposed from the connector portion for a wire harness and the injector connecting portions, and bus bars are insert molded in the rod-like main stem section for effecting an electrical connection between the connector portion and injector connecting portions, whereby an electrical connection is effected between a wire harness and a group of injectors.

Abstract: Composite ceramic materials and a method of the same are disclosed, in which a ceramic material mainly containing silicon nitride, and at least one compound selected from a group consisting of nitrides, carbides, borides, silicides, oxides and oxynitrides of elements belonging to IIIa, IIIb, IVa, IBb, Va, VIa and VIII are combined to form a sintered body, and particles and whiskers of the ceramic material and compound are interlocked with each other and fixed so that the sintered body has a porosity of 5 to 30%. In the above composite ceramics, the particle of the compound are coupled with each other through the whisker or particle of the ceramic material. Accordingly, the composite ceramics are small in charge rate of size due to sintering, and are excellent in tenacity, heat resisting property and thermal shock resisting property. Further, the resistivity of the sintered body can be varied by changing the mixture ratio of ceramic material and compound.

Abstract: A semiconductor device with a semiconductor element encased in a hollow ceramic package. The portion of the package at which the semiconductor element is disposed is formed from SiC admixed with Be or a compound of Be.

Abstract: A semi-conductor device comprising sintered aluminum nitride having a high thermal conductivity, which comprises at least 65% by weight of aluminum nitride, and at least one of beryllium, a beryllium compound, lithium and a lithium compound.

Abstract: An ignition distributor for an internal combustion engine with reduced electric discharge energy and suppressed radio noise generation comprises a rotor electrode capable of rotary motion and a plurality of stationary electrodes arranged substantially in a circle around the rotor electrode through an electric discharge clearance therebetween, where the rotor electrode is made of a sintered mixture comprising zirconium oxide and an electroconductive inorganic compound having a specific resistance of not more than 10.sup.6 .OMEGA.cm as main components. The sintered mixture can be ZrO.sub.2 and an oxide selected from ZnO, NiO and CoO; or ZrO.sub.2, aluminum oxide and an oxide selected from ZnO, CoO, Al.sub.2 TiO.sub.5 and SrTiO.sub.3 or a carbide selected from ZrC, TiC and TaC.

Abstract: Disclosed are semiconductor devices in which an electrical insulating substrate is made of a sintered silicon carbide body having thermal conductivity of at least 0.4 cal/cm.multidot.sec.multidot..degree.C. at 25.degree. C., electrical resistivity of at least 10.sup.7 ohm.multidot.cm at 25.degree. C. and coefficient of thermal expansion of 3.3.about.4.times.10.sup.-6 /.degree.C. at 25.degree. C. to 300.degree. C.

Abstract: An ignition distributor for an internal combustion engine with reduced electric discharge energy and suppressed radio noise generation comprises a rotor electrode capable of rotary motion and a plurality of stationary electrodes arranged substantially in a circle around the rotor electrode through an electric discharge clearance therebetween, where the rotor electrode is a sintered mixture comprising an aluminum compound and/or a boron compound and silicon carbide and having a specific resistance of 10 to 10.sup.6 .OMEGA.cm at room temperature.

Abstract: An electrically conductive sintered ceramics of the present invention comprises, as the main ingredients thereof, (a) silicon carbide, (b) an inorganic compound which exhibits a positive resistance-temperature coefficient, and preferably (c) a sintering assistant. The electrically conductive sintered ceramics obtained exhibits a positive resistance-temperature coefficient as a whole.A ceramic heater of the invention makes use of the electrically conductive sintered ceramics in an electrically conductive portion thereof.A sintered product which exhibits a positive resistance-temperature coefficient helps to prevent the occurrence of thermal runaway or thermal destruction.

Abstract: Sintered aluminum nitride having a high thermal conductivity, which comprises at least 65% by weight of aluminum nitride, and at least one of beryllium, a beryllium compound, lithium and a lithium compound, and a semi-conductor device using the same.

Abstract: Electroconductive ceramic materials with high density, high mechanical strength, high endurance to repeated current supply and excellent thermal shock resistance can be obtained by mixing 5 to 70 parts by weight of Al.sub.2 O.sub.3 or alumina ceramic materials containing 95% by weight or more of Al.sub.2 O.sub.3 and 30 to 95 parts by weight of at least one electroconductive material selected from of ZrB.sub.2, ZrC, ZrN, ZrSi.sub.2, TaB.sub.2, TaC, TaN, TaSi.sub.2, TiB.sub.2, TiC, TiN, Mo.sub.2 B.sub.5 and MoSi.sub.2 adding a molding binder, molding the mixture and sintering the molded mixture. The electroconductive ceramic is usable for heaters, glow plug heaters, electrical gas ignitors, kerosine gasifying burners, and electrodes or conductors for water processing or dialysis.