74389208
May 7, 1993
Oct 17, 1995
systems, machinery and other equipment for handling, processing and transporting bulk particulate materials, namely dust collector systems comprising dust collectors, pneumatic conveying lines and product collectors; gravity blender systems comprising gravity blenders, pneumatic conveying lines and product collectors; blow tank systems comprising blow tanks, pneumatic conveying lines and product collectors; unloading systems comprising pneumatic conveying lines and filters; dust collectors, centrifugal blowers, mechanical conveyors, blow tanks, cyclone collectors, product receivers, rotary valves, diverter valves, mixers, blenders, bag compactors, machine parts, namely filters for dust control, hoppers, pneumatic conveying systems comprising conveyor ducts, elbows, couplings, unloading adapters, butterfly valves; particle size reduction machines, namely attrition mills, knife cutters and crushers, sifters and screeners for classifying and separating particulate materials, elliptical action screeners
Machinerydust control units for industrial use, comprising filters, collectors, receivers and bag compactors
Environmental Control Apparatus