Patent ID: 8404115
Filing Date: 2013-03-26
Classification: B01D

Abstract:
1. A filter element comprising filter media for passing fluid flow therethrough from an upstream side to a downstream side, a filter frame circumscribing said filter media along a perimeter of said filter media for supporting said filter media in a housing, sealing material between said filter media and said filter frame and providing a seal therebetween blocking bypass of fluid around said filter media from said upstream side to said downstream side, said filter frame having a channel receiving said sealing material therein in initially flowable form flowing into contact with said filter media and said filter frame and forming said seal therebetween, said channel having a first channel section of a first channel depth receiving said sealing material, and a second channel section of a second channel depth receiving said sealing material, said second channel depth being greater than said first channel depth, said first channel section extending perimeterally along a first section of said perimeter, said second channel section extending perimeterally along a second section of said perimeter different than said first section of said perimeter, such that said filter frame has differential channel depth along the perimeteral extension of said filter frame provided by said first and second channel sections extending perimeterally along said first and second different sections of said perimeter.