| US 7,544,226 B2 | ||
| Grille for a cyclone vacuum | ||
| Jang-keun Oh, Gwangju (Korea, Republic of) | ||
| Assigned to Samsung Gwangju Electronics Co., Ltd., (Korea, Republic of) | ||
| Filed on Jun. 10, 2005, as Appl. No. 11/149,201. | ||
| Claims priority of application No. 10-2004-0110058 (KR), filed on Dec. 22, 2004. | ||
| Prior Publication US 2006/0130441 A1, Jun. 22, 2006 | ||
| Int. Cl. B01D 45/12 (2006.01) | ||
| U.S. Cl. 55—410 [55/429; 55/459.1; 55/DIG. 3; 15/350; 15/353] | 10 Claims |
| 1. A grille member comprising:
a body adapted to support formation of an air current rotating around the body; and
a plurality of air passages formed at the body to guide the rotating current into the body, each of the air passages having
a leading surface generally facing into a flow direction of the rotating current and a tail surface upstream from the leading
surface relative to the flow direction;
wherein the body is adapted to allow air to draw in the rotating current so that the rotating current, when passing over each
of the air passages, first reaches a start of the tail surface and ends at a start of the leading surface;
wherein each of the air passages is formed so that at least one plane extending along the tail surface and a line along the
flow direction of the rotating current meet at an obtuse angle at an upstream side of the flow direction of the rotating current;
and
wherein the tail surface comprises first and second faces formed so that the planes of the first and the second faces and
the line along the flow direction of the rotating current meet respectively at first and second angles, each of which is an
obtuse angle, at the upstream side of the flow direction of the rotating current.
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