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RE40276 |
Biological safety cabinet with improved air flow
A biological safety cabinet is provided that includes a frame. The frame defines a protected work area and encloses the work area on all but one side. A sash is coupled to the frame that at least...
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6368206 |
Biological safety cabinet with improved air flow
A biological safety cabinet is provided that includes a frame. The frame defines a protected work area and encloses the work area on all but one side. A sash is coupled to the frame that at least...
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5113749 |
Air curtain producing an outward ramping effect for use with an access way or enclosure
An apparatus for producing an air curtain comprising a central opening bounded by a frame on the top, bottom, and sides which defines internal channels which fluidly communicate with one another....
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4927438 |
Horizontal laminar air flow work station
A load chamber of a load lock is provided with a vertical air curtain which isolates the load chamber from the general clean room environment. Horizontal air flows generated in the load chamber...
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4590847 |
Supply make-up air attachment for exhaust booths
Energy conservation upgrading of existing large continuous atmospheric exhaust booths such as used for spray painting or abrasive blasting occurs when the exhaust booth is supplied with outside...
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4475534 |
Ventilating system for kitchen stove
An energy-saving ventilating system for a restaurant kitchen stove provides a first air stream flowing upwardly from a location adjacent the rear edge of the cooking surface, a second air stream...
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4089327 |
Kitchen exhaust system
A kitchen exhaust system has an outside air supply blower and a hood exhaust blower discharging outside. 80% of the air discharged by the exhaust blower is taken from the intake blower through...
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4048912 |
Color spray booth and method of ventilating the same
A ventilated enclosure, for example a paint-spraying booth, is divided into two or more zones by one or more isolating curtains of rapidly-flowing air. One longitudinal curtain is used on each side...
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3974754 |
Controlled fluid flow systems
This invention provides a method and apparatus for continuously moving gas from a first to a second location within an enclosed space. The gas is drawn from and exhausted to the exterior of the...
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3895569 |
Air modulating fume system
A fume control system wherein a canopy-type exhaust hood is located in a building a substantial distance above a source of fumes. Cold air is delivered into the building into downwardly open plenum...
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3408914 |
Fumehood with auxiliary air supply and by-pass conduit means
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