Nitto Kohki Co., Ltd.

Key Coffee Co., Ltd.

Akira Takanaka

Nobuyuki Nozawa

Iwaji Shiomi

Hirosato Takeuchi

Giichiro Shimizu

Masaaki Tanabe

Masanori Nishikiori

Hirokazu Nagai

Provided is a low-noise, long-life electromagnetic blower that has a simple, low-priced configuration and can realize two different outputs, high and low. When the electromagnetic blower is operated with low output, coils of an electromagnet are connected in series with each other, and an alternating current is supplied from an AC power source. When the blower is operated with high output, on the other hand, current is supplied to the one coil only. In the case where the electromagnetic blower is used for sewage disposal, the electromagnetic blower is operated with low output during aeration and with high output during reverse cleaning operation. Thereupon, the electromagnetic blower can operate with low noise during aeration, and the efficiency of reverse cleaning can be improved. In order to operate the electromagnetic blower with high output, moreover, the coils of the electromagnet may be connected in parallel with each other.

Electromagnetic blower and two-passage air supply apparatus

A blower supplies compressed air to a predetermined place. The blower is provided with a plurality of compressors, a common air tank for storing compressed air supplied from the compressors, a changeover valve for switching the compressed air taken in from the air tank between a first supply state and a second supply state, and a controller for controlling operations of the compressors and the switching operation of the changeover valve. The controller can select one operation pattern from among a plurality of operation patterns determined by combinations between the compressors and the changeover valve.

Blower

A dispenser includes a cartridge moving mechanism and a hopper. The cartridge moving mechanism moves between a cartridge receiving position and an extracting position and between the extracting position and a cartridge exhaust position. The hopper has a dropping unit and is disposed immediately above the cartridge receiving position. The dropping unit serves to drop a cartridge consisting of a fluid-impermeable outer frame and a filters. A space defined between the filters and the outer frame and contains a powdery or granular material to be extracted. An extracting mechanism of the dispenser has an upper extracting head, and a lower extracting head including an extracting tank. The upper extracting head is provided above the extracting position and has an extracting chamber. The extracting tank is provided below the extracting position to face the upper extracting head, and another extracting chamber is formed in the extracting tank. The lower extracting head has a heater for heating the extracting tank and a liquid heating passage communicating with the extracting chamber. The dispenser effectively obtains an extract from the material of the cartridge by dripping.

Dispenser

Growing community of inventors

Tokyo, Japan

Akira Takanaka