Abstract: The purpose of stirring a can of paint or fluids before their use is to lift to the surface heavier paint matter that fall out of the solution and tend to settle to the bottom of the container. Manual paint mixing, blending and stirring paddles are flat and not mechanically designed to lift or push to the top of the container all the heavier paint/fluid matter settled to the bottom of the container. This invention is a device designed to lift or push up the heavier paint/fluid matter from the bottom to the surface while using a stirring or to-and-fro reciprocal motion. This manual device could be motorized to turn it at appropriate speeds. One embodiment can be attached or clipped to the foot of the common flat paint-stirring or blending paddle to transform it into a more effective paint mixing and blending tool.

Abstract: A kneading apparatus has a pair of rotary shafts mounted to undergo rotation in different directions of rotation and at different rotational speeds from one another. Stirring members are helically arranged on outer peripheries of the rotary shafts at predetermined helical and angular pitches for kneading an object during rotation of the rotary shafts. The helical pitch of the stirring members of one of the rotary shafts has an inverse helix from that of the stirring members of the other rotary shaft. The stirring members have surfaces with a first phase configured to move the kneaded object in a feed direction or a second phase symmetrical to the first phase and configured to move the kneaded object in a direction reverse to the feed direction. The stirring members are arranged so that the first and second phases cyclically repeat in a predetermined sequence in axial directions of the rotary shafts.

Abstract: Apparatus and methods for a mixing device are presented. The mixing device comprises a shaft and a plurality of blades attached to the shaft. The blades include a variable pitch angle configured to create axial fluid flow and radial fluid flow within a container. The apparatus includes a hub and a cage located at ends of the apparatus. The cage includes an open end configured to mate with a structure attached to the container. In further examples of the apparatus, the upper blade is configured to create axial flow in a substantially downward direction. The lower blade is configured to create axial flow in a substantially upward direction. The lower blade can create an axial flow that encounters the upper blade. A method includes locating a mixing apparatus within the container, inserting fluid within the container, rotating the mixing apparatus, and mixing the fluid.

Abstract: A method and apparatus for the conversion of aromatic alkyls to aromatic carboxylic acids in a reactor are provided, wherein the location of the feeding of the reaction mixture into the reactor significantly increases the conversion efficiency of the precursor materials.

Abstract: The present invention relates to an apparatus for carrying out chemical and physical processes, wherein flowable substances are mixed together, comprising a vertical, cylindrical vessel with inlets and outlets, as well as a central shaft and radial agitator blades arranged on the said central shaft and extending close to the wall. In this context, viewed in the peripheral direction, the agitator blades are curved and are combined in pairs of agitator elements one above the other to form groups, the blades of one element of the group being curved in a radially concave manner and the blades of the other element being curved in a radially convex manner.

Abstract: A two bladed dual direction impeller includes blades that each have an inner blade portion that forces material in a first direction and a second blade portion that forces material in a second direction opposite to the first direction. The first and second blade portions are radially spaced from each other by a connector element. Either one or both of the blade portions may be twisted.

Abstract: The present invention concerns equipment for the leaching of solid matter from a sludge with the aid of a gas containing oxygen, the said equipment comprising a tall reactor (1) equipped with a central pipe (2) and from the reactor bottom (3), an upward-directed double-action mixer (5). The mixer is situated in the vicinity of the lower edge of the central pipe: the upper blades (13) of the mixer produce a downward suction flow from the central pipe, and the lower blades (14) disperse the gas to be fed into the sludge in the form of small bubbles, thereby preventing the solid matter from settling to the bottom of the reactor.

Abstract: A two bladed dual direction impeller includes blades that each have an inner blade portion that forces material in a first direction and a second blade portion that forces material in a second direction opposite to the first direction. The first and second blade portions are radially spaced from each other by a connector element. Either one or both of the blade portions may be twisted.

Abstract: An impeller for use in a mixing apparatus having a rotating shaft has at least one longitudinal member extending substantially radially from the shaft; and a plurality of individual impeller segments each having a bore therethrough. The segments are stacked together with the longitudinal member extending through said bores. The longitudinal member may be an at least partially threaded rod or may be a beam. A method of assembling an impeller for use in a mixing apparatus having a rotating shaft employs the steps of stacking a plurality of individual impeller segments onto a longitudinal member that extends substantially radially from the shaft; and fastening the stacked impeller segments onto the longitudinal member to retain the impeller segments on the longitudinal member.

Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.

Abstract: An impeller for use in a mixing apparatus having a rotating shaft has at least one longitudinal member extending substantially radially from the shaft; and a plurality of individual impeller segments each having a bore therethrough. The segments are stacked together with the longitudinal member extending through said bores. The longitudinal member may be an at least partially threaded rod or may be a beam. A method of assembling an impeller for use in a mixing apparatus having a rotating shaft employs the steps of stacking a plurality of individual impeller segments onto a longitudinal member that extends substantially radially from the shaft; and fastening the stacked impeller segments onto the longitudinal member to retain the impeller segments on the longitudinal member.

Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.