초록 ▼

A lightweight, self-supporting filter housing is disclosed. The housing is economically and simply manufactured by being die cut from flat sheet material to create (a) a plurality of panels serially interconnected at respective scored fold lines and (b) a pair of oppositely disposed holding-frame po

A lightweight, self-supporting filter housing is disclosed. The housing is economically and simply manufactured by being die cut from flat sheet material to create (a) a plurality of panels serially interconnected at respective scored fold lines and (b) a pair of oppositely disposed holding-frame portions, each of which is interconnected at a scored fold line that is shared with one end of a respective one of the panels. When the sheet material is folded along the scored fold lines, it forms a structure with a tunnel-like passageway open at both ends, and the oppositely disposed holding-frame portions are positioned within the passageway to support the filter media element diagonally along the length of the tunnel-like passageway. The filter media is held in place and sealed within the housing by being pressed between the holding frames when the two outermost panels of the one-piece housing are fastened in superimposed alignment with each other. The housing itself forms the exterior dimensions of the operational filter unit; and it requires no other bracing for protecting the media during shipment, operation, insertion, or removal.

대표청구항 ▼

A one-piece housing for supporting a filter media element for filtering particulates from gases when said filter media element is inserted within a duct having predetermined dimensions and a predetermined cross-sectional area, said housing comprising: a single piece of foldable sheet material cut an

A one-piece housing for supporting a filter media element for filtering particulates from gases when said filter media element is inserted within a duct having predetermined dimensions and a predetermined cross-sectional area, said housing comprising: a single piece of foldable sheet material cut and scored with fold lines to form: a plurality of panels, serially interconnected from a first panel to a last panel, each panel having respective ends and each having at least one side connected to another panel at one of said scored fold lines; and a pair of holding-frame portions, each interconnected at one of said scored fold lines with and extending from one said end of a respective one of two of said panels which are separated from each other by a third one of said panels, said holding-frame portions extending respectively from oppositely disposed ends of said two respective panels; said sheet material having a folded orientation when being folded along said scored fold lines so that said first and last panels are superimposed upon each other to form a structure with (a) exterior dimensions compatible for mating with said predetermined dimensions of said duct when inserted therein, and with (b) a tunnel-shaped passageway open at both ends with said oppositely disposed holding-frame portions positioned within said passageway to provide a support for holding said filter media element therebetween, said filter media element being captured between said oppositely disposed holding-frame portions to filter gases passing through a predetermined exposed filtering area formed within said passageway when said structure is inserted within said duct.