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Brush assembly for a vacuum cleanerRelated Patent Categories: Brushing, Scrubbing, And General Cleaning, Machines, With Air Blast Or Suction, With Mechanical Agitating Means, Rotary Agitator, Air Current OperatedBrush assembly for a vacuum cleaner description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060185119, Brush assembly for a vacuum cleaner. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit under 35 U.S.C. .sctn.119(a) of Korean Patent Application No. 2005-15074, filed on Feb. 23, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a brush assembly for a vacuum cleaner. [0004] 2. Description of the Related Art [0005] In general, a brush assembly for a vacuum cleaner rotates a brush drum in contact with a cleaning surface, removes dirt from the cleaning surface by scrubbing and hitting, and draws in the dirt. [0006] There are suggested two methods to rotate the brush drum of the brush assembly. One is that a driving motor is provided in the brush assembly to rotate the brush drum. The other is that the brush drum is rotated by a kinetic energy of drawn-in air. [0007] Currently, the method of using the kinetic energy of air is preferred because the installing of the driving motor results in a complicated structure of the brush assembly and an increased cost. One example thereof is disclosed in U.S. Pat. No. 5,701,633. [0008] In detail, a turbine is provided in a suction passage. Air that is drawn into a brush assembly rotates the turbine and a brush drum connected to the turbine such that the brush drum removes dirt from a cleaning surface by scrubbing and hitting. [0009] However, since the turbine is exposed to the dirt-laden air in the suction passage, big-sized dirt or large amount of dirt may clog the turbine. In this case, the turbine is not smoothly rotated, and in the worse case, the suction passage may be also clogged. Therefore, cleaning efficiency deteriorates. This becomes more problematic when a pet brush is used to groom hair of pets. [0010] Also, since a blade is formed from a center of the turbine, there is no gap between the center of the turbine and the blade so that the air is not able to be guided to the center. When air collides with the blade, the air is not guided to the center but is scattered. As a result, a kinetic energy of the air is not sufficiently transmitted to the next blade, which causes a low rotational force of the turbine. SUMMARY OF THE INVENTION [0011] The present invention has been developed in order to solve the above problems in the related art. Accordingly, an aspect of the present invention is to provide a brush assembly capable of preventing a turbine from being clogged by dirt regardless of the size or amount of dirt. [0012] Another aspect of the present invention is to provide a brush assembly capable of sufficiently transmitting a kinetic energy of air to a turbine. [0013] The above aspects are achieved by providing a brush assembly comprising a body having a dirt suction port formed thereon, a cover connected with an upper portion of the body to form a suction passage and a turbine chamber, a turbine mounted in the turbine chamber, and a brush drum being rotated by a rotational force received from the turbine. The turbine chamber and the suction passage are partitioned from each other, and the turbine is rotated by an air drawn in through an air suction port, which is separated from the dirt suction port. The air suction port may be formed on the cover to prevent a dirt from being drawn therethrough. Since the turbine is rotated by the air drawn in through the air suction port, which is separated from the dirt suction port, the turbine is prevented from being clogged by dirt, dust or hair. [0014] The cover may comprise a first cover and a second cover, and the air suction port comprises a first air suction port formed on the first cover and a second air suction port formed on the second cover. The second cover may be made of transparent material to allow a user to check an inside of the second cover. [0015] The brush assembly may further comprise a partition member for forming the suction passage and the turbine chamber. [0016] The partition member may be removably mounted in the body. Accordingly, easy cleaning of the partition member is achieved. [0017] The turbine may comprise a base plate; and a plurality of blades protruding from the base plate. The blades are arranged on an upper surface of the base plate except for a center of the base plate in a radial direction. Each blade may have a cutting portion formed on a side thereof to guide the air colliding with the blade to the center. Accordingly, a kinetic energy of the drawn-in air is effectively transmitted to the turbine. BRIEF DESCRIPTION OF THE DRAWINGS [0018] The above aspects and other advantages of the present invention become apparent by describing an embodiment of the present invention with reference to the accompanying drawings, in which: [0019] FIG. 1 is a perspective view showing a vacuum cleaner employing a brush assembly according to an embodiment of the present invention; [0020] FIG. 2 is an exploded perspective view showing the brush assembly of FIG. 1; Continue reading about Brush assembly for a vacuum cleaner... Full patent description for Brush assembly for a vacuum cleaner Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Brush assembly for a vacuum cleaner patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Brush assembly for a vacuum cleaner or other areas of interest. ### Previous Patent Application: Turf sweeper and debris removal machine Next Patent Application: Adaptive decorative stair rod and brackets Industry Class: Brushing, scrubbing, and general cleaning ### FreshPatents.com Support Thank you for viewing the Brush assembly for a vacuum cleaner patent info. IP-related news and info Results in 0.50345 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
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