Abstract: The present invention provides a node device for connecting a plurality of networks. The node device comprises a plurality of input units for respectively inputting data from first transmission lines installed in each of the networks, a plurality of output units for respectively outputting data to second transmission lines installed in each of the networks, and a switching unit for switching the data input from the input units to the output units. The input unit that inputs data from a transmission line shared by the networks among the first transmission lines has a higher transmission speed than other input units.

Abstract: An apparatus for agitation mixing comprises a casing including a flow channel through which fluid passes, an agitation body consisting of a shaft installed in the casing and connected to a motor and an agitation blade mounted on the perimeter of the shaft, a powder inlet attached to the casing to feed a powder into the casing, a liquid inlet attached to the casing in the vicinity of the powder inlet to feed a liquid into the casing, a powder inlet duct connected to the powder inlet, and an introducer placed in the powder inlet duct and connected to a motor.

Abstract: Oil level detection sensor detects an oil level in a crankcase. First charging circuit includes a serial connection of a first charging capacitor for charging a reverse voltage produced in a primary coil, the detection sensor, and a first diode. Thyristor is turned on, in response to voltage-charging of the first charging capacitor, to disable an ignition operation of an ignition circuit. Second charging circuit includes a serial connection of a second charging capacitor for charging a forward voltage, produced in the primary coil, and a second diode. Transistor is turned on, in response to voltage-charging of the second charging capacitor, to disable a turning-on operation of the thyristor.

Abstract: An oil level detection device for an internal combustion engine, which comprises: a housing permitting entry therein of oil; a float provided within the housing and vertically movable with the oil entered in the housing; a switch for performing switching operation in response to the vertical movement of the float within the housing; protrusions provided, on the upper surface of the float, for preventing the float from sticking to the ceiling of the housing due to viscosity of the oil; and protrusions provided, on the bottom of the housing, for preventing the float from sticking to the bottom of the housing due to viscosity of the oil.

Abstract: A multipurpose engine controller comprises a control unit for switching between supplying and stopping power supplied from an ignition circuit to a spark plug on the basis of two states, i.e., the operating state of the multipurpose engine determined based on a detection signal from the engine speed sensor, and the state of the level of the oil inside the crankcase determined based on a detection signal from the float-type oil level sensor.

Abstract: An apparatus for agitation mixing comprises a casing including a flow channel through which fluid passes, an agitation body consisting of a shaft installed in the casing and connected to a motor and an agitation blade mounted on the perimeter of the shaft, a powder inlet attached to the casing to feed a powder into the casing, a liquid inlet attached to the casing in the vicinity of the powder inlet to feed a liquid into the casing, a powder inlet duct connected to the powder inlet, and an introducer placed in the powder inlet duct and connected to a motor.

Abstract: An apparatus for agitation mixing comprises a casing 12 including a flow channel through which fluid passes, an agitation body consisting of a shaft 14 installed in the casing 12 and connected to a motor 18 and an agitation blade 16 mounted on the perimeter of the shaft 14, a powder inlet 52 attached to the casing 12 to feed a powder 34 into the casing 12, a liquid inlet 50 attached to the casing 12 in the vicinity of the powder inlet 52 to feed a liquid 24 into the casing 12, a powder inlet duct 30 connected to the powder inlet 52, and an introducer 36 placed in the powder inlet duct 30 and connected to a motor 32.

Abstract: A stirring and mixing device 110 comprises an introduction pipe 55 which is provided with a powder introduction port 24 and a liquid introduction port 22, an extrusion pipe 60 which is connected to the introduction pipe 55 and extrudes a mixture of powder and liquid introduced through the introduction pipe 55 to its one end portion, a casing 12 which is connected to one end portion of the extrusion pipe 60 and provided with a passage through which a fluid of the extruded mixture is made to flow, and a stirrer 15 which is disposed within the casing 12 and comprised of a shaft portion 14 connected to a drive source 20 and a stirring blade 16 attached to the external surface of the shaft portion 14. A funnel-shaped powder introducing device 57 is attached to the powder introduction port 24, a feeder 54 for conveying powder is disposed in the powder introducing device 57, and the feeder 54 is connected to an oscillatory rotation drive source 53.

Abstract: An air cleaner including a casing body and a sealing frame is disclosed. The casing body has a fitting part for allowing engagement of the sealing frame therein. A filter is mounted inside the sealing frame in a tightly contacted relation with the latter. The sealing frame has a groove extending along its outer peripheral surface and opening on its front surface.

Abstract: An agitation mixer 10 comprises a casing 12 through which a fluid passes, an agitator body 15 installed inside the casing 12 and connected to rotation means 92, a liquid inlet 22 for feeding a liquid into the casing 12, and a powder inlet 24 for feeding a powder into the casing 12. In the agitation mixer 10, the powder inlet 24 is attached to a powder feeding apparatus 55 in which a screw for transporting the powder is installed and connected to rotation-vibration means 53.

Abstract: In an apparatus 10, a space is formed by a pair of impermeable supports 16 and a pair of spacer members 12 for providing a predetermined distance between the impermeable supports 16. A permeable membrane is provided within the space and outlets 15 are provided on each of the pair of impermeable members 16. A stirrer 20 is provided within the space where the permeating object is present, and comprises a stirring axis 22, a driving source for oscillating the stirring axis 22, and a plurality of stirring blades 24 mounted on the stirring axis 22. Cut sections 26 are provided at a portion of each of the stirring blades 24 so that the permeating object can be circulated at the space between the stirring blade 24 and the inner wall of the spacer member 12 or at the space between the stirring blade 24 and the permeable membrane 14. The cut sections are alternately provided at the right and left sides of the layered stirring blades.

Abstract: Dissolution of a raw material, fusion of a raw material, or treatment for enhancing the fluidity of a raw material is completed in a short time by an agitation mixer 10 comprising a casing 20 in which a flow channel allowing the passage of fluid is mounted inside, an agitator body 40 mounted inside the casing and connected to a vibration source 46, a material inlet 12 mounted on the lowermost part of the casing 20 to feed the raw material into the casing 20, and a steam feeder 30 for injecting steam into the inside of the casing 20. Agitation chambers 26 divided by partition plates 24 are formed in the casing 20. A pressure gage 32 for measuring injection pressure of the steam is attached to the steam feeder 30. An outlet 14 is mounted on the uppermost part of the casing 20 to eject the raw material after the raw material is treated. Further, one of the agitation chambers 26 to which the outlet 14 is mounted includes a filter 50 placed so as to surround the agitator body 40.

Abstract: A non-heat treated crankshaft which comprises, in % by mass, C: 0.30 to 0.35%, Si: 0.40 to 0.80%, Mn: 1.00 to 2.00%, S: 0.040 to 0.080%, Cr: 0.10 to 0.30% and V: 0.05 to 0.20%, with the balance being Fe and impurities, and of which microstructure is a ferrite-pearlite microstructure whose ferrite fraction &agr; is 0.20 to 0.60 and average pearlite grain size Dp is 0.08 mm or less, and the value of Fn1 defined by the equation (1) being 0.73 or more, the value of Fn2 defined by the equation (2) being 1.20 or more and the value of Fn3 defined by the equation (3) being 0.64 or more, having excellent strength, low temperature toughness and wear resistance, so it can be applied to engines for working machine and general-purpose engines: Fn1=C+0.10Si+0.20Mn−0.71S+0.23Cr+1.65V  (1), Fn2=1.4−1.1×(1−&agr;)+0.16 Dp−½  (2), Fn3=(1−&agr;)+&agr;×(0.3Si+0.

Abstract: An apparatus for agitation mixing comprises a casing 12 including a flow channel through which fluid passes, an agitation body consisting of a shaft 14 installed in the casing 12 and connected to a motor 18 and an agitation blade 16 mounted on the perimeter of the shaft 14, a powder inlet 52 attached to the casing 12 to feed a powder 34 into the casing 12, a liquid inlet 50 attached to the casing 12 in the vicinity of the powder inlet 52 to feed a liquid 24 into the casing 12, a powder inlet duct 30 connected to the powder inlet 52, and an introducer 36 placed in the powder inlet duct 30 and connected to a motor 32.

Abstract: A non-heat treated crankshaft which comprises, in % by mass, C: 0.30 to 0.35%, Si: 0.40 to 0.80%, Mn: 1.00 to 2.00%, S: 0.040 to 0.080%, Cr: 0.10 to 0.30% and V: 0.05 to 0.20%, with the balance being Fe and impurities, and of which microstructure is a ferrite-pearlite microstructure whose ferrite fraction &agr; is 0.20 to 0.60 and average pearlite grain size Dp is 0.08 mm or less, and the value of Fn1 defined by the equation (1) being 0.73 or more, the value of Fn2 defined by the equation (2) being 1.20 or more and the value of Fn3 defined by the equation (3) being 0.

Abstract: An object of the present invention is to provide a method of polishing semiconductor wafer by using a double-sided polisher which prevents a polish-sagging in an outer periphery of the wafer and thereby improves a degree of flatness of the semiconductor wafer. During polishing of the semiconductor wafer by using a double-sided polisher, a larger difference as compared to the prior art is created between a frictional resistance acting on a front surface of a silicon wafer W from an upper surface plate 12 side and a frictional resistance acting on a back surface of the silicon wafer W from a lower surface plate 13 side. This is because the present invention has employed a hard expanded urethane foam pad 14 and a soft non-woven fabric pad 15, which have different friction coefficients to the silicon wafer W from each other. Thereby, respective wafers W can be rotated at such a high speed as 0.1-1.0 rpm within corresponding wafer holding holes 11a.

Abstract: An object of the present invention is to provide a semiconductor wafer having a front and a back surfaces polished so as to have different glossiness from each other, yet with a lower cost. The glossiness of the front surface and the back surface can be selected arbitrarily. In a double-sided polisher with no sun gear, silicon wafers W are inserted in respective holding holes 11a of a carrier plate 11. The wafers W are placed with their back surfaces facing up. An expanded urethane foam pad 14 is pressed against the back surfaces of the wafers W and a non-woven fabric pad 15 is pressed against the front surfaces of the wafers W. A carrier holder 20 and thus the carrier plate 11 are then driven to make a circular motion associated with no rotation on their own axes within a horizontal plane while supplying a slurry to the wafers W from an upper surface plate 12 side.

Abstract: The present invention provides a node device for connecting a plurality of networks. The node device comprises a plurality of input units for respectively inputting data from first transmission lines installed in each of the networks, a plurality of output units for respectively outputting data to second transmission lines installed in each of the networks, and a switching unit for switching the data input from the input units to the output units. The input unit that inputs data from a transmission line shared by the networks among the first transmission lines has a higher transmission speed than other input units.

Abstract: In an apparatus 10, a space is formed by a pair of impermeable supports 16 and a pair of spacer members 12 for providing a predetermined distance between the impermeable supports 16. A permeable membrane is provided within the space and outlets 15 are provided on each of the pair of impermeable members 16. A stirrer 20 is provided within the space where the permeating object is present, and comprises a stirring axis 22, a driving source for oscillating the stirring axis 22, and a plurality of stirring blades 24 mounted on the stirring axis 22. Cut sections 26 are provided at a portion of each of the stirring blades 24 so that the permeating object can be circulated at the space between the stirring blade 24 and the inner wall of the spacer member 12 or at the space between the stirring blade 24 and the permeable membrane 14. The cut sections are alternately provided at the right and left sides of the layered stirring blades.

Abstract: An iron comprising a bottom member as an ironing face, which is provided with a plated metal film containing fluorine compound fine particles, so that the ironing face provides high surface hardness which shows less wear, good slidability and less generation of static electricity.