AIR CONTAMINANT SYSTEM WITH LAMINAR FLOW
First Claim
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1. A mobile airborne contamination control system comprising:
- a ventilation unit having at least one exhaust fan;
a filter assembly housed within said ventilation unit; and
,a retractable contamination control booth including;
a retractable/extendable frame having a plurality of pairs of opposing of risers, each said riser having a supporting rolling means, wherein each riser in each of said pair of opposing risers is hingeably attached to each adjacent riser;
a plurality of joists, each of said joists attached to one pair of said plurality of pairs of opposing risers;
a cover of flexible material draped over all of said opposing risers and thereby covering said retractable frame to form said booth having an enclosed work area;
a flexible rear wall attached to said retractable/extendable frame and sealingly attached to said ventilation unit around said filter assembly, wherein said filter assembly opens into said retractable booth from said rear wall; and
,a front wall of said booth having at least one front door, each of said at least one door having a section permeable to air flow.
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Abstract
The present invention is directed toward a movable airborne contaminant control system having a retractable/extendable booth attached in a sealing manner to a ventilation unit, preferably mounted on wheels. The ventilation unit includes a filter assembly that opens into the work are formed by the booth. Front doors support air filters. In operation, the ventilation unit draws air in a longitudinal laminar flow over one or more work pieces. The filter assembly captures both particulates and VOCs to allow the exhaust air to include an extremely low contaminant load.
35 Citations
20 Claims
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1. A mobile airborne contamination control system comprising:
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a ventilation unit having at least one exhaust fan; a filter assembly housed within said ventilation unit; and
,a retractable contamination control booth including; a retractable/extendable frame having a plurality of pairs of opposing of risers, each said riser having a supporting rolling means, wherein each riser in each of said pair of opposing risers is hingeably attached to each adjacent riser; a plurality of joists, each of said joists attached to one pair of said plurality of pairs of opposing risers; a cover of flexible material draped over all of said opposing risers and thereby covering said retractable frame to form said booth having an enclosed work area; a flexible rear wall attached to said retractable/extendable frame and sealingly attached to said ventilation unit around said filter assembly, wherein said filter assembly opens into said retractable booth from said rear wall; and
,a front wall of said booth having at least one front door, each of said at least one door having a section permeable to air flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mobile airborne contamination control system comprising:
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a ventilation unit having at least one exhaust fan; and
,a filter assembly housed within said ventilation unit. - View Dependent Claims (18, 19, 20)
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Specification