Abstract: An exhaust particle cleaning device for a diesel engine includes a trap case provided in a flow conduit for the exhaust gas. A filter is disposed in the trap case so that carbon particles or other exhaust particles contained in the exhaust gas can be caught in the filter material when the exhaust gas is passed through the filter. A plurality of electric heating wires are spread over the upstream end face of the filter so that the exhaust gas passes through the areas defined between the plurality of heating wires. These heating wires are supported by insulator arms so as to maintain a predetermined small gap between the heating wires and the upstream end face of the filter.

Abstract: This application is directed to a method of manufacturing high conductive sinters of a conductive lanthanum, chromium composite oxide material in which the specific resistance is extremely reduced with a rise in temperature, and whereby an extremely superior sinter can be provided as a heat resisting conductive material. The method of manufacturing sinters in accordance with the present invention is free from the conventional disadvantages of manufacturing sinters with conductive composite oxides of La and Cr as major components, which serves to improve the sintering properties and qualities of the product. The sinters can be easily manufactured at a temperature as low as approximately 1,500.degree. C., which is lower than temperatures previously used.

Abstract: A ceramic heater-element to be incorporated into a plug to be pressed into a socket provided on a front inner car-body, thereby providing a cigarette-lighter, which comprises an annular shaped heater-portion having a radially extending gap thereby providing two opposing end-portions, and a pair of electrode-portions, each being extended substantially downwardly from each of the two end-portions while being in a parallel relationship with a center axis of the heater-portion, wherein respective cross-sectional dimensions through which the electric current flows are so arranged that the cross-sectional area of the heater-portion is relatively smaller than either of the cross-sectional areas of the electrode-portions.

Abstract: A current limiting element for preventing electrical overcurrent including a principal current conducting member made of a low resistance conductive elastomer having a high coefficient of thermal expansion and having a flattened cross-sectional shape and a heating/heat insulating member which consists of a high resistance conductive elastomer or a resistive coating surrounding the circumference of the conducting member.