Abstract: Disposable diapers provided with a two-element breathable backsheet. The two elements are a vapor pervious, relatively liquid impervious outer sheet and a liquid impervious inner panel. An absorbent core is the third necessary element of the disposable diaper. The inner panel is placed between the outer sheet and the absorbent core in the crotch region of the disposable diaper. There is no requirement that the inner panel be affixed to the outer sheet in any manner other than to insure the maintenance of their relative orientations during use. The disposable diaper can be provided with an optional topsheet disposed on the absorbent core on the side opposite the breathable backsheet.

Abstract: An apparatus and method for filtering and classifying waste or process streams into three product streams using a polymeric net belt to drive a filter drum and hydrophobic polymeric filter element thereon. A matte of solids is doctored from the belt to provide a first product stream. A roller mounted on a fluid cylinder driven pivoted arm compresses the filter element to provide a smaller suspended solids stream for collection in a trough inside the drum. This second product stream is removed axially from the trough by means of a pump. A third clarified or effluent stream is produced and collected in the drum as the stream passes through the foam filter element. This third stream is removed axially in the direction opposite of said second stream. A shower keeps the foam in the compressed area water filled to prevent vapor lock or gas blockage in the cellular foam filter.