Patent ID: 7448945

Claim:
A mobile clean room comprising a vertically disposed rectangular room frame having an upper and lower portion, a plurality of wall panels affixed between said upper and lower portion of said frame to define an interior space and to form an end wall and front and rear walls, a vertically elongated rectangular door hingedly affixed to said frame solely forming another end wall of said room, a floor panel affixed to said lower portion of said frame, a plurality of wheels affixed to said lower portion of said frame closely adjacent said floor panel for movably carrying said frame, a dust collection assembly movably attached to said upper portion of said frame and selectively positionable vertically against a ceiling, said wall panels and said door being formed of non-load bearing transparent plastic material to enable substantially unobstructed visibility through said room; said dust collection assembly including a horizontally disposed rectangular curtain frame carrying a coextensive rectangular ceiling seal and defining an access space and a subtending curtain affixed to said curtain frame, said curtain being located interiorly of and being connected to said room frame, said curtain frame being lowerable and raiseable vertically to fit closely adjacent a ceiling surface with said ceiling seal being compressed, only one pair of spaced hollow guides within said interior space attached to said upper portion of said room frame, only one pair of spaced posts subtending from said curtain frame and located to fit within a corresponding said guide and being movable vertically therein by a user from within said room, only one pair of spaced locking fasteners attached between said guide and respective said post to selectively secure each said post in a desired position with said ceiling seal compressed.