Abstract: A method for cleaning and removing particulate matter collected in a mobile vacuum loader that has a plurality of collection chambers, the method consisting of isolating two adjacent collection chambers and providing an outlet conduit on the main or heavy collection chamber and an inlet conduit on the adjacent collection chamber and positioning a separation chamber in communication with these two conduits, drawing negative pressure through the chambers and thus removing the particulate matter from the heavy collection chamber and collecting it in the separation chamber for disposal.

Abstract: An apparatus and process for the collection of airborne particulate matter in combination with a fluid, the airborne particulate matter and fluid being collected in a collection chamber under negative pressure, the collection chamber having a disposal bag complimentary secured within the chamber, the disposal bag having a fluid porous bottom, the collection chamber having a drain valve disposed at its lower most point, the disposal bag and collection chamber being subjected to either positive pressure or a vacuum at the drain valve to remove fluid from the collected particulate matter prior to disposal of the particulate matter.

Abstract: A separation chamber comprising a solid walled container vessel having a removably sealable top which contains an inlet port, the chamber having an inner perforated screen wall with an outlet port positioned in the side of the vessel extending into the interior of the perforated screen inner wall, a static vacuum line communicating with the outlet line and the annular space between the solid outer container wall and the inner perforated screen wall, and a self-contained disposal bag having an inlet sleeve and an outlet sleeve, said bag design to conform to the contours of the inner perforated screen wall and said inlet sleeve for extending through the inlet port and the outlet sleeve for extending outwardly through said outlet port, both sleeves having a means for securing the sleeves in a closed and secure position once the disposal bag has become filled with particulate matter, the bag, complying with disposal requirements, then being deposited in an appropriate disposal area.

Abstract: An improved low pressure filtration apparatus for the collection and removal of particulate matter form an air stream which includes particulate matter wherein the apparatus includes sequentially, an intake hose for the introduction of the air stream including said particulate matter into the apparatus, a first enclosed collection chamber having an intake apparatus for connection to said intake hose and a removably secured outlet apparatus for removal of a portion of said particulate matter collected in said first collection chamber and an exit apparatus from the first collection chamber for the air stream and a portion of the particulate matter, a second enclosed collection chamber having an intake apparatus for introducing the air stream and a portion of the particulate matter from the first collection chamber, an exit apparatus for the air stream and a portion of the particulate matter from the second enclosed collection chamber, a plurality of vertically disposed filter bags disposed between the intake an