Abstract: A flexible aircraft privacy door for a passenger cabin environment, comprising a first edge and a second edge. The flexible privacy door is configured to be slidable between a stowed position leaving an opening between spaced structures of an airplane seat and a deployed position closing the opening between the spaced structures of the airplane seat. The first edge of the flexible privacy door, when the flexible privacy door is in the deployed position, is moveable out of a plane of the opening by way of force against the flexible privacy panel. In addition, the flexible privacy door is bendable out of the plane of the airplane seat entrance up to a certain bending distance, thereby allowing a passenger to pass through the opening for ingress/egress during flight operations.

Abstract: An energy absorbing backshell including a non-metallic core, a non-metallic casing surrounding the non-metallic core, a tube on the top surface of the non-metallic core and non-metallic casing.

Abstract: An energy absorbing backshell including a non-metallic core, a non-metallic casing surrounding the non-metallic core, a tube on the top surface of the non-metallic core and non-metallic casing.

Abstract: An energy absorbing backshell including a non-metallic core, a non-metallic casing surrounding the non-metallic core, a tube on the top surface of the non-metallic core and non-metallic casing.

Abstract: An aspirator includes a plurality aspirator tubes, each preferably extending at approximately 70 degrees from a central axis and including a fin extending a limited distance below the aspirator tube outlet. The design improves mixing and gas contact, yet has reduced power requirements, by using a plurality of debris-shedding, finned aspirator tubes to inject approximately 35% more air than the best prior art designs at the same rotational speed. Further, the aspirator of the present invention improves motor life by reducing the average current draw on the motor. The aspirator is useful in many applications, including sewage and wastewater treatment, oxygenation, fermentation, aeration, hydrogenation, oxidation, and oil-sand separation.

Abstract: An aspirator includes a plurality aspirator tubes, each preferably extending at approximately 70 degrees from a central axis and including a fin extending a limited distance below the aspirator tube outlet. The design improves mixing and gas contact, yet has reduced power requirements, by using a plurality of debris-shedding, finned aspirator tubes to inject approximately 35% more air than the best prior art designs at the same rotational speed. Further, the aspirator of the present invention improves motor life by reducing the average current draw on the motor. The aspirator is useful in many applications, including sewage and wastewater treatment, oxygenation, fermentation, aeration, hydrogenation, oxidation, and oil-sand separation.