An air filter assembly .[.comprises.]. .Iadd.includes .Iaddend.a filter housing having a filter media .[.is.]. mounted therein, and interposed between the inlet and outlet of the housing. An end cap having an annular groove formed therein is mounted to one end of the filter media. A gasket formed of
An air filter assembly .[.comprises.]. .Iadd.includes .Iaddend.a filter housing having a filter media .[.is.]. mounted therein, and interposed between the inlet and outlet of the housing. An end cap having an annular groove formed therein is mounted to one end of the filter media. A gasket formed of a pliable material is mounted within the groove. The assembly is provided with .[.means.]. .Iadd.a nut and bolt assembly .Iaddend.for urging the end cap against an adjacent end wall of the housing to compress the pliable gasket therebetween, thereby sealing the inlet from the outlet, and insuring that air passing through the outlet must first pass through the filter media of the filter unit.
대표청구항▼
[ What is claimed is:] [18.] An air filter comprising:a filter element;a metal end cap secured to one end of said filter element, said end cap having a pair of radially spaced annular projections extending therefrom to form an annular groove in said end cap, each of said projections being comprised
[ What is claimed is:] [18.] An air filter comprising:a filter element;a metal end cap secured to one end of said filter element, said end cap having a pair of radially spaced annular projections extending therefrom to form an annular groove in said end cap, each of said projections being comprised of a pair of opposed sidewalls interconnected at the distal ends thereof; anda gasket disposed within said groove, said gasket being formed of a pliable material. .Iaddend..Iadd.19. An air filter as defined in claim 18, wherein each of said projections is comprised of a pair of opposed sidewalls stamped from said metal end cap. .Iaddend..Iadd.20. An air filter as defined in claim 18, wherein each of said projections is formed of an inner sidewall adjacent said groove and an associated outer sidewall spaced radially therefrom, both of said outer sidewalls being angularly disposed with respect to the inner sidewall associated therewith. .Iaddend..Iadd.21. An air filter as defined in claim 18, wherein said gasket is formed of foamed rubber. .Iaddend..Iadd.22. An air filter as defined in claim 18, further comprising means for retaining said gasket within said groove. .Iaddend..Iadd.23. An air filter as defined in claim 22, wherein said means for retaining said gasket within said groove comprises a plurality of alternating inwardly-projecting indentations provided on the opposing inner walls of said groove. .Iaddend..Iadd.24. An air filter as defined in claim 18, wherein the inner diameter of said ket is less than the inner diameter of said groove. .Iaddend..Iadd.25. An air filter as defined in claim 18, wherein the outer diameter of said gasket is greater than the outer diameter of said groove. .Iaddend..Iadd.26. An air filter as defined in claim 18, wherein the inner walls defining said groove are angled inwardly toward the center of said groove. .Iaddend..Iadd.27. An air filter as defined in claim 18, wherein the opposing side walls of said gasket are provided with a bevel cut so that the gasket tapers inwardly away from said end cap. .Iaddend..Iadd.28. A filter unit for an air filter assembly comprising:a filter media having an end;an end cap secured to said end of said filter media, said end cap including a pair of radially spaced annular projections formed thereon having respective inwardly facing sidewalls which define an annular groove therebetween; anda gasket formed from a pliable material disposed within said groove. .Iaddend..Iadd.29. A filter unit as defined in claim 28, wherein said end cap is formed from metal, and wherein said projections are stamped from said metal end cap. .Iaddend..Iadd.30. A filter unit as defined in claim 28, wherein each of said sidewalls is an inner sidewall, and wherein each of said projections further includes an outer sidewall spaced radially from said respective inner sidewall. .Iaddend..Iadd.31. A filter unit as defined in claim 30, wherein each of said outer sidewalls is angularly disposed with respect to said respective inner sidewalls. ddend..Iadd. . A filter unit as defined in claim 28, wherein said gasket is formed from foamed rubber. .Iaddend..Iadd.33. A filter unit as defined in claim 28, further including means for retaining said gasket within said groove. .Iaddend..Iadd.34. A filter unit as defined in claim 33, wherein said means for retaining said gasket within said groove includes a plurality of inwardly projecting indentations provided on said sidewalls. .Iaddend..Iadd.35. A filter unit as defined in claim 34, wherein said inwardly projecting indentations are provided in an alternating manner on said sidewalls. .Iaddend..Iadd.36. A filter unit as defined in claim 28, wherein said gasket defines an inner diameter which is less than an inner diameter defined by said groove. .Iaddend..Iadd.37. A filter unit as defined in claim 28, wherein said gasket defines an outer diameter which is greater than an outer diameter defined by said groove. .Iaddend..Iadd.38. A filter unit as defined in claim 28, wherein said inner walls extend from respective inner edges adjacent said end of said filter media to respective outer edges, and wherein a radial distance defined between said inner edges is equal to a radial distance defined between said outer edges. .Iaddend..Iadd.39. A filter unit as defined in claim 28, wherein said inner walls extend from respective inner edges adjacent said end of said filter media to respective outer edges, and wherein a radial distance defined between said inner edges is greater than adial distance defined between said outer edges. .Iaddend..Iadd.40. A filter unit as defined in claim 28, wherein said gasket defines a pair of radially spaced sidewalls which extend from respective inner edges adjacent said end of said filter media to respective outer edges, and wherein a radial distance defined between said inner edges is equal to a radial distance defined between said outer edges. .Iaddend..Iadd.41. A filter unit as defined in claim 28, wherein said gasket defines a pair of radially spaced sidewalls which extend from respective inner edges adjacent said end of said filter media to respective outer edges, and wherein a radial distance defined between said inner edges is greater than a radial distance defined between said outer edges. .Iaddend..Iadd.42. A filter unit as defined in claim 28, wherein said inner walls extend from respective inner edges adjacent said end of said filter media to respective outer edges, and wherein said inner edges are connected together. .Iaddend.
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