Machine part, namely, vibrator for use with an air scour system to allow for installation of the air scour system in a filter bed without removal of filter media

SOLVENT INJECTION APPARATUS FOR CLEANING COLLECTOR PLATES IN ELECTROSTATIC PRECIPITATORS

SYSTEM INCLUDING ACTUATOR AIR PRESSURE ENTRANCE AND DISCHARGE STRUCTURE FOR PUMPING AND CONVEYING A CONTINUOUS STREAM OF GRANULAR OR PULVERIZED MATERIAL

FLUIDIZING DISCHARGE GATES FOR COVERED HOPPER CARS

RESIDENTIAL, COMMERCIAL, INSTITUTIONAL AND INDUSTRIAL CARPET CLEANING AND THE LIKE