公开(公告)号：US12263420B2

公开(公告)日：2025-04-01

申请号：US17775068

申请日：2020-09-22

Applicant: BRITA SE

Inventor： Tobias Schuler ,  Bernd Freystedt

IPC: B01D27/00 ,  B01D27/02 ,  B01D27/08 ,  C02F1/00

Abstract: A gravity-based filter cartridge having a cup-shaped upper part and a cup-shaped lower part, the upper part having a main axis (X), a first rim at a first axial end, a hole-free section at a second axial end, and at least one water inlet between the hole-free section and the first rim, the lower part having a second rim and at least one water outlet, wherein filter media is arranged in the lower part, the filter cartridge further including a mesh fixated to the upper part along a closed path, wherein the mesh is further fixated to the hole-free section radially inwards of the closed path as well as a method for manufacturing the same.

公开(公告)号：US12227432B2

公开(公告)日：2025-02-18

申请号：US17618003

申请日：2020-07-10

Applicant: BRITA SE

Inventor： Phillip Bunnemann ,  Tobias Schuler ,  Falk Schuricht ,  Emre Oguz

IPC: B01D29/11 ,  C02F1/00 ,  C02F1/28 ,  C02F1/42

Abstract: A filter cartridge, in particular gravity-operated filter cartridge, having a body portion with at least one water outlet and a head portion with at least one water inlet and at least one air outlet, the head portion being arranged on top of the body portion, the body portion and the head portion together forming a housing with an inner volume, the head portion having a lower rim defining a bottom opening of the head portion, the filter cartridge further having a mesh located in the inner volume and attached to the head portion along the lower rim, the mesh separating the inner volume into an upper volume defined by the mesh and the head portion and a lower volume defined by the mesh and the body portion, treatment media being arranged in the lower volume. In order to improve the flow characteristics the filter cartridge has at least one holding-down device for the mesh, the holding-down device being movable from a standby position into an active position, in which the holding-down device is located at least partially between the mesh and the bottom opening.