초록 ▼

In a fluid filter having a filtering medium comprising upper and lower layers defining therebetween a fluid receiving space into which the fluid to be filtered is introduced, and in which the filter supporting structure comprises a part which extends through both of the layers of the filtering mediu

In a fluid filter having a filtering medium comprising upper and lower layers defining therebetween a fluid receiving space into which the fluid to be filtered is introduced, and in which the filter supporting structure comprises a part which extends through both of the layers of the filtering medium, a spacer surrounds that part and retains the filter medium layers spaced from one another thereat, thereby significantly to increase the filtering capacity of the filter unit.

대표청구항 ▼

In a fluid filter assembly comprising upper and lower walls sealingly connected to one another to define a chamber, said walls having means defining both a fluid inlet opening and a fluid outlet opening spaced therefrom, and a filter sheet sealingly received inside the chamber and comprising upper a

In a fluid filter assembly comprising upper and lower walls sealingly connected to one another to define a chamber, said walls having means defining both a fluid inlet opening and a fluid outlet opening spaced therefrom, and a filter sheet sealingly received inside the chamber and comprising upper and lower layers defining therebetween a fluid receiving space in fluid communication with said inlet opening, said outlet opening being located outside said space, one of said walls having a part which extends into said chamber through said filter sheet, toward the other of said walls, the improvement which comprses a first sealing relationship between one of said filter sheet layers and said wall part, a spacer surrounding a vertical portion of said wall part and extending toward said one of said walls and terminating in a spacer abutment surface, and a second sealing relationship between the other of said filter sheet layers and said abutment surface and said one wall, whereby said layers of said filter sheet are positively spaced from one another at said wall part.