Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.

Abstract: A static mixer may include a conduit section having a channel, an injector opening through an inner wall thereof, a tab having a main portion extending from the inner wall adjacent and downstream of the opening and extending radially inwardly at an angle away from the opening in the downstream direction, and having at least one finger extending at a non-zero angle from the main portion, the main portion and the at least one finger being configured such that a second fluid injected through the injector opening and into a first fluid flowing through the conduit section flows radially along the main portion toward a center of the conduit section, and radially outward from the main portion along the at least one finger, whereby the first and second fluids are thoroughly mixed as a result of turbulence imparted by the tab to the fluids.