Abstract: A wet gas stripper is provided for separating particulate matter entrained in a moving gas stream. The gas stripper includes a housing having a plurality of walls, and a gas inlet for receiving the moving gas stream into the housing and a gas outlet through which the moving gas stream is exhausted from the housing. A particulate collection area is formed at a base of the housing. A liquid spray element sprays a liquid against at least one of the walls of the housing above the particulate collection area to create a particulate-entraining mist. The mist defines a filtration medium for capturing the particulate matter entrained in the gas stream and carrying the particulate matter to the collection area for removal from the housing.

Abstract: A system for producing blocks of open-cell, flexible polyurethane foam material and for conditioning each freshly-manufactured block to impart thereto optimal flexible foam properties. The system includes means to pour the flowable constituent of the foam material to be manufactured into a production station at the inlet of a conveyor, the constituents interacting to create on the conveyor a block of open-cell flexible foam material which is then wrapped in a plastic film casing that exposes the leading and trailing end of the block so that the encased block is open ended. The conveyor transports the wrapped block toward the rear end of a gate in a conditioning station having a port therein whose front end is coupled by an air duct to a suction fan.

Abstract: A wet electrostatic scrubber unit for extracting from a polluted air stream particulate matter entrained therein, whereby emerging from the unit is an environmentally acceptable air stream. The unit includes a treatment station having a cylindrical duct through which is blown the polluted air stream. Coaxially disposed within the duct is a water delivery pipe having nozzles along its length from each of which is projected a radial beam of water. The radial beam collides with the inner surface of the duct to create a turbulent mist which is intercepted by the polluted air stream flowing through the duct. The velocity of the radial beam is such as to cause it to collide with the duct surface with sufficient force to triboelectrically generate negative ions. These cause the mist to acquire an electrostatic charge to capture the contaminates entrained in the polluted air stream. The negative ions also react with oxygen in the air stream to produce ozone that oxidizes the particulate matter captured by the mist.

Abstract: A system for producing blocks of open-cell, flexible polyurethane foam material and for conditioning each freshly-manufactured block to impart thereto optimal flexible foam properties. The system includes means to pour the flowable constituents of the foam material to be manufactured into a production station at the inlet of a conveyor, the constituents interacting to create on the conveyor a block of open-cell flexible foam material which is then wrapped in a plastic film casing that exposes the leading and trailing end of the block so that the encased block is open ended. The conveyor transports the wrapped block toward the rear end of a gate in a conditioning station having a port therein whose front end is coupled by an air duct to a suction fan.

Abstract: An apparatus is provided for moulding a polymeric foam into a bun in a longitudinally-extending, channel shaped mould by a mobile vessel and fall plate which are progressively transported from one end to the other of the mould to lay down partially-expanded foam over the bottom of the mould. The apparatus includes a mould for receiving a polymeric foam and including a longitudinally-extending, channel-shaped enclosed mould through which a mobile vessel and fall plate are progressively transported from one end to the other of the mould to lay down partially-expanded foam over the bottom of the mould while the mould is in a moulding position. Gas is vented from the interior of the mould and the mould is moved from the moulding position to a curing position remote from the moulding position where the bun cures in the mould.