Abstract: A mesh panel of the type having a plurality of spaced apart apertures includes an internal frame member substantially in the form of a perforated sheet, and having a plurality of openings therein larger than the apertures. The frame member has substantial internal rigidity. An elastomeric coating encapsulates at least a portion of said frame member. In a preferred embodiment, a bonding coating between the elastomeric coating and the frame member securely bonds to both the elastomeric coating and the frame member. The bonding coating is of the type that is liquid before application to the frame member and is curable by heat or time to a hard plastic. Preferably, the bonding coating is partially cured before the elastomeric coating is applied, after which both coatings are cured by heat. The panel is particularly well suited for use as a sorting screen.

Abstract: Attachment apparatus by which a sifting screen is mounted to a tension rail of a shaker machine. The apparatus includes a portion of the sifting screen wherein a hem at the periphery thereof has a thickness smaller than that of an interior portion of the sifting screen. The hem portion further includes a wire cloth array which is cast in the hem portion. A shroud includes upper and lower segments which are folded back on each other. A hinge edge is thereby defined. Facing surfaces of the upper and lower segments of the shroud sandwich the hem portion of the sifting screen therebetween. Means are provided to inhibit movement of the facing surfaces across engaged surfaces of the hem portion.

Abstract: An extended wear-life composite wear structure particularly suitable for use as a liner in the form of modular panels, generally including a ceramic layer of spaced apart ceramic tiles, each having at least one anchor receiving structure therethrough, overlying a resilient energy absorbing layer separating the ceramic layer from a base layer, and ceramic tile anchors linking each of the ceramic tiles to the base layer via cooperative engagement with the anchor receiving structures of the ceramic tiles. This composite structure permits independent temporary displacement of each of the tiles upon a surface impact, improved retention of the tiles, and greatly enhances the overall structural integrity of the composite as the intermediate layer, layers and or structures are securedly "sandwiched" between the abrasion and impact resistant ceramic layer and the structural base layer.

Abstract: This improved screening apparatus for sorting various size aggregates utilizes a screen made of polyurethane having two sets of perpendicular evenly spaced parallel webs each of which enclose a wire provided for reinforcement. If desired, the reinforcing wires can be single or multiple through either one or through both sets of webs. Web segments extend between web intersections. Areas enclosed by opposed adjacent web segments provide for the screen openings. This area can contain either a single hole or a plurality of holes to provide a number of different screen sizes. The holes increase in cross-section from the screen aggregate input side to the output side to eliminate or greatly minimize particles wedging within the holes. Backing bucker bars of various widths attached to the lower side of the screen provide a predetermined screen cross-section when their lower edges are supported horizontally.

Abstract: A flooring system for use in an animal shelter. The flooring system is modular and includes a disassemblable base frame having, as components thereof, a pair of end crossbars, a plurality of longitudinally extending support members, and interconnecting elements. When assembled, the base frame is formed by interconnecting the end crossbars by means of laterally spaced support members. The interconnecting elements, in turn, interconnect adjacent support members and the interconnecting elements extend generally transverse to those members. The modular flooring system also includes at least one first panel and a second panel supported on the base frame. The one or more first panels are generally coplanar, and the second panel includes a portion, intended to support an animal mother when feeding her young, which is positioned to define a second plane, elevated above the first plane, and a ramp portion angling downwardly from the second plane defining portion toward each first panel.

Abstract: A mixer fin such as those fixedly mounted within rotatable drum mixers. More specifically, a mixer fin comprising of a substantially non-metallic, e.g., polymeric, mixer fin such as those used within rotatable drum mixers, for example to mix concrete. The mixer fin having a non-stretchable cord disposed within the fin so as to minimize fin deformation during the mixing process.