Endless shaped articles include at least one strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, wherein each convolution of the strip comprises a twist along the longitudinal axis thereof, wherein the twist is an odd multiple of 180 degrees. Methods to manufacture the article, and its use as sling, loop, belt or chain link are also disclosed.

A conveyor sled assembly is utilized to supply proppant in support of oilfield hydraulic fracturing operations. The conveyor sled assembly includes precisely positioned components where tolerances between components are so small as to prevent significant spillage at component junction boundaries. This manner of fitting proppant pods onto the conveyor sled assembly increases predictability of which pods will discharge their proppant load first. This enhances reliability of the overall proppant delivery system.

A conveyor sled assembly is utilized to supply proppant in support of oilfield hydraulic fracturing operations. The conveyor sled assembly includes precisely positioned components where tolerances between components are so small as to prevent significant spillage at component junction boundaries. This manner of fitting proppant pods onto the conveyor sled assembly increases predictability of which pods will discharge their proppant load first. This enhances reliability of the overall proppant delivery system.

A proppant metering and loading apparatus for a hydraulic fracturing blender unit is provided. A continuous loop conveyor belt receives proppant from a source location on the blender, such as a hopper, and delivers the proppant to a blender device of the blender. A measurement device (e.g. weigh scale) measures and provides an indication of amount (e.g. weight, volume and/or density) of the proppant delivered to the blender device by the conveyor belt.

A proppant metering and loading apparatus for a hydraulic fracturing blender unit is provided. A continuous loop conveyor belt receives proppant from a source location on the blender, such as a hopper, and delivers the proppant to a blender device of the blender. A measurement device (e.g. weigh scale) measures and provides an indication of amount (e.g. weight, volume and/or density) of the proppant delivered to the blender device by the conveyor belt.

An active drive spiral conveyor belt system includes a drum configured to rotate about a drum axis, a plurality of modules, a plurality of cross-rods joining together the plurality of modules, and an infeed system. The drum can include a plurality of drive bars, each with a drive member extending therefrom, and spaced an arc length. At least some of the plurality of cross-rods or modules can include a drive end configured to engage with the drive members. The plurality of modules can be configured to be collapsible relative to each other and the plurality of cross-rods. The infeed system can be configured to collapse the spacing between adjacent drive ends prior to transiting into engagement with a cooperating drive member.

An active drive spiral conveyor belt system includes a drum configured to rotate about a drum axis, a plurality of modules, a plurality of cross-rods joining together the plurality of modules, and an infeed system. The drum can include a plurality of drive bars, each with a drive member extending therefrom, and spaced an arc length. At least some of the plurality of cross-rods or modules can include a drive end configured to engage with the drive members. The plurality of modules can be configured to be collapsible relative to each other and the plurality of cross-rods. The infeed system can be configured to collapse the spacing between adjacent drive ends prior to transiting into engagement with a cooperating drive member.

Provided is an improved animal feed distribution system and components, specifically tube belt conveyor system, that provides more efficient manner of delivering feed to the animals, such as poultry by using tube conveyor belt to distribute feed in a re-circulating loop.

Provided is an improved animal feed distribution system and components, specifically tube belt conveyor system, that provides more efficient manner of delivering feed to the animals, such as poultry by using tube conveyor belt to distribute feed in a re-circulating loop.

The invention relates generally to a sanitizing device that may comprise of an enclosure, a conveyor module, a plurality of sanitizing light sources, and possibly a sealing module. Objects that need to be sanitized may be transported or placed inside the enclosure and can be exposed to sanitizing lights from a plurality of sanitizing light sources. After the exposure to the sanitizing lights, the objects may convey out of the apparatus or go through a sealing module before exiting the enclosure. The conveyor module of the sanitizing device may be driven by torque created by an exterior conveyor belt or a motorized mechanism integrated within the apparatus.