Abstract: An impeller is provided, including a metal housing, a shaft, and a plastic member. The metal housing has a shaft mounting hole. The inner surface of the shaft mounting hole includes three or more contact points, and the contact points are closer to the shaft than other portions of the inner surface of the shaft mounting hole. The shaft passes through the shaft mounting hole and is affixed by the contact points. The metal housing divides the shaft into an upper section, a middle section, and a lower section. The plastic member passes through the shaft mounting hole and is in contact with the middle section.

Abstract: A container for blender includes a cup and a stainless steel hollow cylindrical member. The cylindrical member has an L-shaped upper rim and an annular bottom having an L-shaped inner edge. The cylindrical member is integrally fitted in a lower part of the cup when the latter is injection-molded with the L-shaped upper rim and the L-shaped inner edge of the annular bottom imbedded in peripheral wall and bottom wall of the cup, respectively. The cylindrical member protects the cup against direct contacting with and colliding by rigid materials being crushed in the cup, and accordingly eliminates tiny chips of the cup that would otherwise be produced due to such colliding.

Abstract: A container for blender includes a cup and a stainless steel hollow cylindrical member. The cylindrical member has an L-shaped upper rim and an annular bottom having an L-shaped inner edge. The cylindrical member is integrally fitted in a lower part of the cup when the latter is injection-molded with the L-shaped upper rim and the L-shaped inner edge of the annular bottom imbedded in peripheral wall and bottom wall of the cup, respectively. The cylindrical member protects the cup against direct contacting with and colliding by rigid materials being crushed in the cup, and accordingly eliminates tiny chips of the cup that would otherwise be produced due to such colliding.

Abstract: A fruit and vegetable juice extractor includes a lower and an upper base, a strainer basket and a disc cutter received in the upper base, and a top cover having a centered feed tube via which a whole piece of fruit or vegetable may be fed toward and ground into mash by the disc cutter to produce rich amount of juice. The disc cutter is provided at peripheral areas with a plurality of teeth as blades, and at a central area with curved blades arranged into a cross. One of the central blades has an end extended across a center of the disc cutter to eliminate a dead angle of grinding at the center of the disc cutter. Therefore, the feed tube may be vertically aligned with the center of the disc cutter and have increased diameter to receive a whole piece of fruit or vegetable for juicing.

Abstract: A juicer having a stationary cutter and a rotary cutter is provided to fully grind fruit or vegetable fed into the juicer so that as much juice as possible is produced from the ground fruit or vegetable. The rotary cutter is mounted in a strainer basket and fixed onto a main shaft of an operating motor of the juicer so as to rotate along with the main shaft when the motor is started. The stationary cutter is fixedly connected to a lower end of a feed tube downward extended from a top cover of the juicer to closely locate above and face against the rotary cutter. The stationary and the rotary cutters are provided on lower and upper surfaces, respectively, with a plurality of cutter blades at an inner area and a grinding zone around an outer peripheral area.

Abstract: An automatic grater for producing vegetable and fruit paste mainly includes a grating disc and a rotational retainer screwed around a motor rotational shaft to rotate at high speed along with the rotational shaft. Vegetable and/or fruit can be fed into the grater to contact with the rapidly rotated grating disc and be grated into paste that falls in the also rapidly rotated rotational retainer. The paste is thrown by a centrifugal force to pass a side opening between a lid and the rotational retainer and be collected in a paste collector connected to the side opening.

Abstract: Disclosed is a multipurpose juice extractor having a closed lower chamber for collecting residue of ground material in a compartment next to another compartment for grinding material. Juice extracted from the ground material flows via a juice outlet into a juice collector. The juice collector is provided with built-in electric heating means and can be directly heated on the juice extractor to cook the juice collected therein.

Abstract: A juice-extractor also serving as a grinder suitable for extracting juice from water-containing materials, such as vegetables, fruits, soybeans, and for grinding dry material into powder, such as coffee beans, green beans, nuts. In addition to elements similar to that of a juice-extractor, such as the funnel, the top cover, the lower grinding disc, the meshes-containing filter, the residue collector, the juice flow guider, and the base, the grinder also includes a bag made of air-pervious fabric and a rotational retainer having a closed side wall. When the juice-extractor is to serve as a grinder to grind a dry material into powder, the air-pervious bag is used to replace the residue collector and the rotaional retainer is used to replace the meshes-containing filter, so that powder produced from the grinding can be directly sent into the bag instead of the juice flow guider.