Abstract: A dust is electrostatically charged using an ion-releasing device adapted to release only ionized air with occurrence of a corona discharge, thereby reducing the amount of power consumed and the amount of ozone generated to the utmost. An electric dust collector includes a charging section having a discharging electrode and an earthed electrode, a dust-collecting section having a voltage-applied electrode and an earthed electrode and an air feed fan. Dust introduced into the dust collector is electrostatically charged by breaking the air insulation by a corona discharge occurring in the charging section to produce ionized air and then removed in the dust-collecting section where an electric field is formed. However, because the corona discharge is generated, there is a problem that the discharged current is large, and the amount of power consumed and the amount of ozone generated are large.

Abstract: A range hood having an excellent collecting efficiency of greasy smoke generated from a cooking range is provided. The range hood comprises side plates disposed below the body, each of which has an inclined surface formed thereon, and a deflecting plate having a horizontal portion shaped in parallel with the bottom face of the body and an inclined portion shaped in parallel with the inclined surface of the body. The deflecting plate is narrower than the body and arranged so as to form an inlet port at the front and both sides thereof and to form a suction passage between the top face thereof and the body. The inclined portion of the deflecting plate is disposed between the body and the inclined surface of the side plate. Since the inlet speed of greasy smoke at the inlet port on the front side is larger than that on the rear side, greasy smoke ascending along the deflecting plate is effectively collected.

Abstract: A plurality of honeycomb pipes bundling a plurality of fine tubes are inserted and fixed at desired positions in a refrigerant piping at proper intervals to form a silencer, and noise is reduced by straightening and homogenizing the disturbance of refrigerant and attenuating transmission of pressure pulsations.

Abstract: A ventilating fan/light combination is provided comprising a fan and a boxlike ventilating fan housing which incorporates the fan and has an opening formed at its lower portion. The ventilating fan housing includes an exhaust port for connection with a duct, and is provided so as to project into a ceiling. The ventilating fan/light combination also includes an illuminating lamp, a lighting unit casing which incorporates the illuminating lamp and is provided at the lower portion of the ventilating fan housing so as to define an air passage in the opening, and a decorative frame which includes a light shielding portion surrounding an outer periphery of the lighting unit casing and has a vent hole communicating with the air passage.

Abstract: The present invention provides for an antifungal, antibacterial and antiviral filter comprising in laminations a dust collecting filter and a filter impregnated with a tea extract. The filter having nonwoven fabric is impregnated with a polyphenol tea extract, which can be easily produced commercially and is capable of maintaining a high virus trapping performance, inactivating the trapped viruses and preventing them from being rescattered.

Abstract: The present invention provides a medicated gargling cup with which it is possible to form a liquid for gargling effective for preventing cold by merely pouring water into the cup; an antiviral mask having a nonwoven fabric impregnated with a tea extract, which mask can be easily produced commercially and is capable of maintaining a high virus trapping performance, inactivating the trapped viruses and preventing them from being rescattered; an antiviral filter and an antifungal, antibacterial and antiviral filter comprising in laminations a dust collecting filter and a filter impregnated with a tea extract; an air cleaner and an air cleaner-humidifier comprising the antiviral filter.

Abstract: A scroll compressor includes a scroll assembly accommodated in a closed container, a crankshaft for driving the scroll assembly, a main bearing for rotatably supporting one end of the crankshaft, and an auxiliary bearing for rotatably supporting the other end of the crankshaft. A recess is defined between the internal surface of the closed container and the external surface of a compression section comprised of the scroll assembly and the main bearing. A portion of a jig is inserted into the recess to achieve concentricity and parallelism of the auxiliary bearing with respect to the main bearing using reference planes defined in the auxiliary bearing and the compression section or by radially adjusting the auxiliary bearing.

Abstract: A scroll compressor includes a scroll assembly accommodated in a closed container, a crankshaft for driving the scroll assembly, a main bearing for rotatably supporting one end of the crankshaft, and an auxiliary bearing for rotatably supporting the other end of the crankshaft. A recess is defined between the internal surface of the closed container and the external surface of a compression section comprised of the scroll assembly and the main bearing. A portion of a jig is inserted into the recess to achieve concentricity and parallelism of the auxiliary bearing with respect to the main bearing using reference planes defined in the auxiliary bearing and the compression section or by radially adjusting the auxiliary bearing.

Abstract: A denitrification system comprises an electrostatic precipitator (3) in the foremost stage of the system inlet, an ozone supply nozzle (4) for an ozonizer (5) for generating ozone required for oxidizing the NO into NO.sub.2, followed by a fan or an agitator (6), and an NO.sub.2 absorbent filter (7) in the final stage arranged in that order. Further, this system may comprise the control of feeding back the residual O.sub.3 concentration after oxidation, to achieve the higher denitrification rate.