7 Bulk material handling and processing equipment and parts therefor, namely, conveyors; conveyor components in the nature of flighting, screws, troughs, shafts, hangers, hanger bearings, trough ends, seals, trough covers, spouts, trough saddles, trough feet, coupling bolts, screw clamps; screw feeders; elevators; slide gates; heat transfer screw processors; pressure vessels; blenders; mixers; bulk material storage hoppers