Abstract A filter apparatus for removing contaminant particles from an air or gas stream, the apparatus including a filter medium, disposed therein in pleated form, across the air or gas stream to be treated. A rectangular frame has inner side walls defining therebetween a path for the air or gas stream to be treated. A filter medium is disposed in longitudinally-extending pleat form across an air or gas stream to be treated. A pleat spacer and supporting fiber is longitudinally co-extensive with the pleat filter medium. The fiber member consists integrally of a plurality of portions disposed along the pleat filter medium and of connecting portions extending at an acute angle from one end of the portion outside of the filter medium towards the other end, thereby providing a support inside the bend of each of the pleats and the connection portions extend crosswise to the pleats.
A filter assembly for filtering contaminant particles from a gas stream, comprising a filter medium disposed in the form of a plurality of spaced-apart pleats and defining a plurality of corrugations, a self-supporting fiber strand supporting said filter medium and including a plurality of longitudinal portions and forming a plurality of corrugations in order to maintain said filter medium in its spaced-apart pleated form, each of said longitudinal portions being disposed in a bend of said pleats of said filter medium, so as to locate the longitudinal portions of said strand on alternate opposite sides of the filter medium for engagement with said filter medium at said bends of said filter medium, said fiber strand including connecting portions connecting the ends of each of said longitudinal portions; yield the spacing between said pleats, and said connecting portions of each of said longitudinal portions being directed towards the adjacent bend of the next opposite of said pleats, and said connecting portions are disposed outside of said filter medium.
Claim 2
Dependent Claim
167 words
A filter assembly for filtering contaminant particles from a gas stream, comprising a filter medium disposed in the form of a plurality of spaced-apart pleats and defining a plurality of corrugations, a self-supporting fiber strand supporting said filter medium and including a plurality of longitudinal portions and forming a plurality of corrugations in order to maintain said filter medium in its spaced-apart pleated form, each of said longitudinal portions being disposed in a bend of said pleats of said filter medium, so as to locate the longitudinal portions of said strand on alternate opposite sides of the filter medium for engagement with said filter medium at said bends of said filter medium, said fiber strand including connecting portions connecting the ends of each of said longitudinal portions; yield the spacing between said pleats, and said connecting portions of each of said longitudinal portions being directed towards the adjacent bend of the next opposite of said pleats, and said connecting portions are disposed outside of said filter medium.