Method and apparatus for treating the atmosphere to lower the concentration of pollutants therein in which ambient air is passed into operative contact with a stationary substrate having at least one ambient air contacting surface having a pollutant treating material thereon.

Method and apparatus for treating the atmosphere to lower the concentration of pollutants therein in which ambient air is passed into operative contact with a stationary substrate such as an automobile at rest, a billboard, an air conditioning unit, a transportation tunnel and the like, the stationary substrate having at least one ambient air contacting surface having a pollutant treating composition thereon.

A controlled atmosphere system comprising a plurality of open-ended chambers within an enclosure that may be refrigerated, each chamber provided with a detach-able closure either in the form of a flexible curtain or a solid lightweight partition wherein each chamber is supplied with its own controlled atmosphere.

A modified atmosphere packaging method creates a modified atmosphere in a package including an inner package and an outer package. The inner package is composed at least partially of a polymeric material substantially permeable to oxygen, while the outer package is composed of a polymeric material substantially impermeable to oxygen. After a food product such as raw meat is placed within the inner package, the inner package is flushed with a desired mixture of gases to substantially remove oxyge...

An apparatus for releasing gaseous material into the atmosphere employs a sorbent material that is sorptively saturated with a predetermined quantity of the gaseous material at a predetermined pressure, preferably approximately equal to atmospheric pressure. The gaseous material to be released preferably has a vapor pressure lower than the predetermined pressure at which the sorbent material is sorptively saturated. The apparatus also includes capability of selectively exposing the sorbent mater...

A controlled atmosphere system comprising a plurality of open-ended chambers within an enclosure that may be refrigerated, each chamber provided with a detachable closure either in the form of a flexible curtain or a solid lightweight partition wherein each chamber is supplied with its own controlled atmosphere.

A package for maintaining a modified atmosphere around contents being contained therein when stored in an ambient environment is set forth. The modified-atmosphere package includes a tray, a membrane, and a structural member. The tray has a base and side walls extending upwardly from the base. The side walls and the base define a cavity wherein the contents are disposed. A membrane is attached to a top portion of the side walls and encloses the cavity. The structural member is detachably connect...

The method and apparatus of the present invention provides a more efficient and cost effective method and apparatus for applying agents to plants, crops, vegetation, and trees, while avoiding the problems associated with conventional impingement velocity tunnel sprayers. The method and apparatus of the present invention utilizes the conditions in a controlled atmosphere to deposit agents on plants and provides a device which increases the maneuverability of pesticide spray rigs.

A controlled atmosphere machining process which involves a work station for machining a workpiece with an inert gas in an enclosed environment which will not support combustion. The process further includes a vacuum system which removes particulate matter occurring during the machining process and transports the matter to a collecting tank. The inert fluid is recycled through a filter and cooling system and continues to be drawn by the vacuum system into the enclosed machining area of each work ...

The atmosphere control apparatus of the present invention employs first and second chambers located for example, above the ceiling and below the floor of the audience seating section of the movie theater, respectively. Both chambers have a large storage capacity. Cool air and warm air, supplied from an air conditioner, are stored in the first and second chambers, respectively. In order to create an atmosphere similar to that in, for example, a movie scene, the cool air in the first chamber and t...