Fluid filter construction with a corrugated and tapered filter strip
AssigneeSolberg Mfg., Inc.
InventorCharles H. Solberg, Jr.
Life of this patent
Estimating the term…
Abstract
A filter device including a separable housing and cannister-like means, with the improved filter element retained in the latter. The filter element being an elongated tapered strip having a predetermined transverse dimension at its midsection generally equivalent to the diametral measurement of the interior of said cannister and the initial configuration of the tapered sides being equated to the various chordal dimensions of the interior of the cannister-like means integrated with the folds of the filter element, thereby providing a filter element of controllable increased filtration area.
Claims20
A filter device including a corrugated filter member, an encircling support member integrated with said filter member, said filter member initially being flat and having its peripheral margins defining an elongated strip-like configuration tapered from its midsection toward its ends, said filter member when corrugated from its initially flat condition generally defining a filter member having a curvilinear portion at said ends when viewed in plan, said margins being insert molded into and integrally encapsulated by said support member, said support member having a body portion generally cylindrical in configuration and extending axially at least to the ends of said filter member and overlies a portion of the margins of said filter member adjacent both of said ends of said filter member, said support member further including a flange means extending laterally intermediate the ends of said cylindrical body portion and container means having means for gripping engagement with said support member, said container means adapted for engagement with conduit means carrying a fluid medium desired to be filtered.
The method of fabricating a fluid filter device including the steps of providing cutting means for cutting an elongated strip-like filter element from a thin filter material, said element having a border that tapers from its midsection toward at least one end, corrugating said filter element with the axially disposed corrugated filter element taking a curvilinear peripheral form at said tapered end, integrating the edges of said filter element by insert molding said edges in a retaining member having an internally complimentarily shaped bore therethrough with the edges of said filter element being embedded in said retaining member, forming means on said retaining member for association with housing means to support and seal said filter and retaining member within said housing means for exposing said filter element to the fluid material to be filtered.
Dependencies are inferred from the claim text.