Abstract: An industrial vacuum system which is contained in a portable container having a bottom and an open end and includes an extension unit having a first end operatively connected to the portable container and a second end that is selectively extendable away from the container, a collection unit rotatively coupled to first ends of the extension unit, a transportation unit coupling the extension unit to the container, the transportation unit having one end rotatively coupled to the end of the extension unit the transportation unit including a plurality of wheel units, and a trolley guidance unit having a rail attached to the bottom of the container and engaging the wheels of the wheel unit.

Abstract: An industrial vacuum system which is contained in a portable container having a bottom and an open end and includes an extension unit having a first end operatively connected to the portable container and a second end that is selectively extendable away from the container, a collection unit rotatively coupled to first ends of the extension unit, a transportation unit coupling the extension unit to the container, the transportation unit having one end rotatively coupled to the end of the extension unit the transportation unit including a plurality of wheel units, and a trolley guidance unit having a rail attached to the bottom of the container and engaging the wheels of the wheel unit.

Abstract: A filtration apparatus for an industrial vacuum system which includes a source of vacuum pressure, a collection vessel having an opening at one end for the collection of solid particulate matter and liquid waste material, and a conduit extending between the source of vacuum pressure and a second end of the collection vessel to apply the vacuum pressure to the collection vessel. A filtration chamber forms part of the collection vessel and is located between the two ends of the collection vessel. A filter media array is disposed in the filtration chamber, wherein the filter media array includes a plurality of non-woven or spun-bound pleated filter cartridges in at least two linear columns in the filtration chamber. In a preferred embodiment, control elements provide a maximum pressure differential across the body of the filter cartridges by providing an in-rush of ambient air into the filtration chamber when the pressure differential reaches a pre-determined quantity.

Abstract: A portable, convertible apparatus for creating either a negative pressure or a positive pressure in and filtering the air in a room, the apparatus comprising a housing having upper and lower ends. The housing defines an air flow path between the upper and lower ends and contains, within the air flow path, a HEPA filter and a fan. A dome-shaped inlet grille is mounted on the upper end of the housing, and a cylindrical outlet grille is mounted on the lower end of the housing. The apparatus also includes an annular cover for the outlet grille, which cover is adapted to communicate with the exterior of the room, and a dome-shaped cover for the inlet grille, which cover is adapted to communicate with the exterior of the room. The apparatus creates a negative pressure in the room when the annular cover is placed over the outlet grille and the dome-shaped cover is removed, and creates a positive pressure in the room when the annular cover is removed and the dome-shaped cover is placed over the inlet grille.