Abstract: A plasticizing device that plasticizes a material to produce a molten material includes a driving motor, a screw that has a grooved surface on which a groove is formed and rotates by the driving motor; and a barrel having a facing surface that faces the grooved surface and has a communication hole formed in the center and a heater, wherein the screw has a cooling medium flow path provided inside the screw, an inlet portion that communicates with the cooling medium flow path and introduces a cooling medium from the outside of the screw, and an outlet portion that communicates with the cooling medium flow path and discharges the cooling medium to the outside of the screw.

Abstract: A plasticizing device includes a rotor having a rotation shaft and a groove-formed surface that includes a groove formed in the rotation direction and that inclined from the rotation shaft in a radial direction with respect to a radial direction orthogonal to the center axis, a facing unit having a facing surface inclined so as to face the groove-formed surface in the radial direction, a heater heating a material to be supplied between the facing surface and the rotor, and a communication hole through which the material plasticized by heat of the heater flows, a drive motor generating rotational driving force, a connection unit fitting to the rotor in a direction along a rotation shaft of the drive motor, connecting the rotation shaft of the drive motor and the rotor to each other, and transmitting the rotational driving force of the drive motor to the rotor, and an elastic member disposed between the rotor and the connection unit.

Abstract: A device for dewatering feedstock that is pourable or free-flowing by compression and segments for use with such a device. A housing has a shell pipe in which a shaft with flights running around its circumference rotates around an axis of rotation. A feedstock is transported through the housing and compressed. The pressate is conveyed out of the device through holes in the shell pipe. An internal pipe is provided within the shell pip. The internal pipe has numerous segments with holes. The outer surface of the segments rests directly on the inner surface of the shell pipe. The holes in the segments overlay the holes in the shell pipe. The segments are made of wear-resistant cast or sintered material.

Abstract: A rocker switch includes a drive member which is swingable about a fulcrum, a case supporting the fulcrum of the drive member, and an auxiliary switch. The drive member includes a main body, a push-section provided on the main body, a first stopper provided on the main body and positioned between the first push-section and the fulcrum, and a second stopper provided on the main body, the fulcrum being positioned between the first stopper and the second stopper. The case includes a supporter for supporting the fulcrum of the drive member, and first and second contact sections which the first and second stoppers contact non-simultaneously to each other according to a swinging motion of the drive member, respectively. The rocker switch further includes an urging section for urging the first and second stoppers to the first and second contact sections, respectively. The rocker switch generates a small noise when operating, thus providing quietness.

Abstract: A process for dewatering and reducing pathogens in liquid waste sludge having a liquid component and a sludge solids component. Alkaline material is added to the liquid waste sludge. Flocculent may then be mixed with the liquid waste sludge. The liquid waste sludge is then fed into a screw press having a screw. The screw simultaneously heats and dewaters the liquid waste sludge for a sufficient period of time and at a predetermined temperature for the sludge solids component from the screw press to be pasteurized. An apparatus is also provided for carrying out the process for dewatering and reducing pathogens in liquid waste sludge.