Patent ID: 6138551
Filing Date: 2000-10-31
Classification: A47J

Abstract:
A filter device (1) for brewing beverages (5) from coffee or tea grounds, said filter device comprising:a support frame (2) comprising a first annular member (6, 16) and at least two radially outwardly projecting supports (7) for placing said filter device onto a rim of a beverage container;said first annular member (6, 16) having a diameter smaller than a diameter of the beverage container;a disposable filter insert (3) enclosing an amount of coffee grounds or tea leaves for brewing a beverage in the beverage container;said filter insert (3) comprising a seamless conical porous pocket (10) for receiving the coffee grounds or tea leaves, said conical pocket having a cone base facing upwardly and a cone top facing downwardlysaid filter insert (3) further comprising a porous cover (11) covering an opening at said cone base;said pocket (10) having finer pores than said cover (11);said cover (11) sagging downwardly and forming a depression;said pocket (10) being folded from a flat sheet, having an oval or circular contour, by folding said flat sheet in opposite folding directions along at least two folding lines (12, 13) extending diametrically through said flat sheet and positioned at an angle of up to 45.degree. to one another;said folding lines being secured against unfolding without using an adhesive by connecting at least the edges of said pocket (10) and said cover (11) to one another;said filter insert (3) annularly supported at said cone base by said annular member of said support frame (2) such that said pocket (10) is freely suspended from said support frame (2).