Filter screen assembly
AssigneeUnited Wire Limited
InventorGeorge L. Souter
Life of this patent
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Abstract
An assembly comprises a rectangular principal frame (12) of moulded plastics material and subdivided by crosspieces (14, 16) to form sub-areas (18). Each sub-area receives as a releasable snap-fit a plastics moulded insert (20) in the form of a sub-frame carrying one or more tensioned screen meshes (FIG. 1). A peripheral sealing gasket may seal the joint between each sub-area (18) and the insert (20).
Claims10
A filter screen assembly comprising a principal frame divided by crosspieces into a plurality of equally sized sub-areas, each sub-area having formed on at least one crosspiece thereof an inwardly directed lip, and a corresponding plurality of screen inserts snap-fitted into engagement within said sub-areas, each insert having a sub-frame with a tensioned filter mesh securably attached thereacross, whereby the resulting twisting of the sub-frame upon interengagement with said lip serves to at least maintain the tension in the mesh.
Dependencies are inferred from the claim text.