The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 2009

Filed:

Feb. 21, 2008
Applicants:

Jang-keun OH, Gwangju, KR;

Min-ha Kim, Gwangju, KR;

Dong-houn Yang, Gwangju, KR;

Inventors:

Jang-keun Oh, Gwangju, KR;

Min-ha Kim, Gwangju, KR;

Dong-houn Yang, Gwangju, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 5/34 (2006.01); A47L 9/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A suction brush for a vacuum cleaner is provided. The suction brush includes an upper casing; a lower casing; an elevating plate installed between the upper casing and the lower casing; a cleaned surface sensing part for sensing; a lever rotatably provided around a rotating shaft that is parallel to the elevating plate; and a solenoid. The solenoid rotates the lever in one direction when the surface to be cleaned is the hard floor and rotates the lever in the other direction when the surface to be cleaned is the carpet. The lower casing contacts the surface to be cleaned as the elevating plate descends, while it comes apart from the surface to be cleaned as the elevating plate ascends.


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