Filtration device

TWM688932UActive Publication Date: 2026-10-21JU WEI TECH LTD
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Patent Information

Application Number
TW115207035
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-07-24
Publication Date
2026-10-21
Estimated Expiration
2036-07-23

Smart Images

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    Figure TWG2TB001917885_003
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Abstract

A filtration device includes a frame and a plurality of filter media. The frame has a chamber and an inlet and an outlet respectively communicating with the chamber. The frame has at least one filter screen, which is installed at the outlet. The filter media are placed in the chamber of the frame. The at least one filter screen has a plurality of mesh openings, each mesh opening having at least one protrusion extending inward from the wall of the mesh opening. The protrusion has a projecting end, forming a pore with the mesh wall, preventing the filter media from passing through the mesh opening. This allows the user to prevent the filter media from falling out due to collision or overturning without reducing the original mesh size, while also ensuring the ventilation effect of the filtration device.
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Claims

1. A filtration device comprising a frame and a plurality of filter media, the frame having a chamber and an inlet and an outlet respectively communicating with the chamber, the frame having at least one filter screen, the at least one filter screen being disposed at the outlet, and the filter media being placed in the chamber of the frame; characterized in that: the at least one filter screen has a plurality of mesh openings, each mesh opening having at least one protrusion, the at least one protrusion extending inward from the wall of the mesh opening, the at least one protrusion having a protruding end, the protruding end forming a pore with the wall of the mesh opening, the pore preventing the filter media from passing through the mesh opening.

2. The filter device as claimed in claim 1, wherein each mesh is composed of a plurality of straight segments, each straight segment forming the mesh wall, and each mesh has at least a plurality of protrusions arranged facing each other, the protruding ends of each of the facing protrusions forming the pore.

3. The filtration device as claimed in claim 1, wherein the at least one filter screen includes a first filter screen and a second filter screen, the first filter screen and the second filter screen being respectively disposed at the inlet and the outlet of the frame, and the filter media being located between the first filter screen and the second filter screen.