Mobile enclosure unit
AssigneePacific Environmental Systems
InventorsGregory Allan Rogers, Jeff Robert Blair
Life of this patent
Estimating the term…
Abstract
A mobile enclosure unit for containment of contaminants has a vertical, wheeled frame assembly having an open upper end and a lower wall. The frame assembly is adjustable in height so that the open upper end can be positioned in contact with a ceiling, allowing access for workers to work on or in the ceiling. A pliable cover sleeve surrounds the frame assembly from the upper end to the lower wall to form a chamber within the frame assembly having an open upper end to allow a worker in the chamber to access the ceiling area above the open end of the unit. An exhaust system is mounted in the frame inside the sleeve for drawing in air from the chamber, filtering debris from the air, and exhausting filtered air from the chamber.
Claims19
A mobile enclosure unit, comprising:
- a vertical, wheeled frame assembly having an open upper end and a lower wall, the frame assembly being adjustable in height so that the open upper end can be positioned in contact with a ceiling to surround an area of the ceiling to be worked on;
- a pliable cover sleeve surrounding the frame assembly to form a chamber within the frame assembly having an open upper end to allow a worker in the chamber to access the ceiling area above the open end of the frame assembly, the sleeve extending from the lower wall to the upper end of the frame;
- an exhaust system mounted in the frame inside the sleeve for drawing in air from the chamber, filtering debris from the air, and exhausting filtered air from the chamber, whereby a negative air pressure is created within the chamber;
- and
- a rectangular, horizontal frame secured to the upper end of the frame assembly for defining the open upper end of the assembly, the frame being adjustable between a predetermined minimum width and a predetermined maximum width for controlling the size of the upper end opening of the frame assembly.
A mobile enclosure unit, comprising:
- a vertical, wheeled frame assembly having an open upper end and a lower wall, the frame assembly being adjustable in height so that the open upper end can be positioned in contact with a ceiling to surround an area of the ceiling to be worked on;
- a pliable cover sleeve surrounding the frame assembly to form a chamber within the frame assembly having an open upper end to allow a worker in the chamber to access the ceiling area above the open end of the frame assembly, the sleeve extending from the lower wall to the upper end of the frame assembly and having an open lower end;
- an exhaust system mounted in the frame inside the sleeve for drawing in air from the chamber, filtering debris from the air, and exhausting filtered air from the chamber, whereby a negative air pressure is created within the chamber;
- a working platform adjustably mounted in the frame assembly and movable to a selected height in the frame assembly;
- a bottom panel secured across the open lower end of the sleeve below the lower wall of the frame assembly;
- the bottom panel and lower wall of the frame assembly each having an outer periphery;
- a first fastener device extending around the outer periphery of the lower wall of the frame assembly;
- and
- a second fastener device extending around the outer periphery of the panel for releasable attachment to said first fastener device to secure the lower end of the sleeve and outer periphery of the bottom panel to the frame assembly.
Dependencies are inferred from the claim text.