Abstract: The sequential compression device for treatment and prophylaxis of deep vein thromboses includes a compression sock having a plurality of electromechanical units positioned along the calf muscle of a user's leg. Each of the electromechanical units includes a front housing component and a back housing component. The front housing component of the unit includes a compressor piston positioned in communicating relation with the user's calf muscle and the back housing component of the unit includes a magnet and a copper coil. The magnet is positioned in communicating relation with the compressor piston of the front housing component. Upon activation, the compressor piston selectively compresses the small saphenous vein to simulate the effect of the calf muscle during walking and promote the flow of blood back to the user's heart.

Abstract: The storage tank cleaning machine is a mobile unit mounted on a trailer for towing by a suitable vehicle. The machine is positioned adjacent the access opening of the tank, e.g., a water tank, cistern, or other storage tank, and a support on the bed of the machine is raised to vertical over the opening. A multiple segment articulating arm extends from the support and is lowered through the opening to access the interior of the tank. A motorized rotary brush extends from the distal end of the arm. Distance sensors adjacent the brush detect the interior surfaces of the tank for accurately positioning the brush. An electronic control system is provided. A tank for water and/or other cleaning fluid and a disinfectant tank are also provided. Fluids used during the cleaning operation are suctioned back to the machine, where the fluids are cleaned and recycled.