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Electric fanRelated Patent Categories: Pumps, Motor Driven, Electric Or Magnetic Motor, Rotary Motor And Rotary Nonexpansible Chamber Pump, Plural UnitsElectric fan description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060140796, Electric fan. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims priority of Taiwanese application no. 093141118, filed on Dec. 29, 2004. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The invention relates to an electric fan, more particularly to an electric fan with a pair of fan units, a motor with a motor casing, and a bracket secured to two opposite end portions of the motor casing. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide an electric fan having a pair of fan units driven by a motor that is supported by a bracket which is capable of minimizing vibration of the electric fan during use. [0004] Accordingly, an electric fan of this invention comprises a motor unit, a pair of opposite fan units, a bracket, a stand, and a rotation-enabling mechanism. [0005] The motor unit includes a motor having two opposite output shafts, and a motor casing surrounding the motor casing and having a bottom side that has two opposite end portions. [0006] The fan units are coupled respectively to and driven by the output shafts. [0007] The bracket is disposed below the motor unit, and has two opposite securing portions that are respectively secured to the end portions of the motor casing, and a supporting shaft that is connected to and that is disposed between the securing portions of the bracket. [0008] The stand is pivotally connected to the supporting shaft. [0009] The rotation-enabling mechanism includes a driving unit that is mounted on the bracket, and a linkage that is connected pivotally to the stand and that is connected to and driven by the driving unit so as to be rotatable together with the bracket and the motor unit relative to the stand. BRIEF DESCRIPTION OF THE DRAWINGS [0010] Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which: [0011] FIG. 1 is an assembled fragmentary partly sectional view of the first preferred embodiment of an electric fan according to the present invention; [0012] FIG. 2 is an assembled fragmentary partly sectional view of the second preferred embodiment of an electric fan according to the present invention; and [0013] FIG. 3 is an assembled fragmentary partly sectional view of the third preferred embodiment of an electric fan according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0014] Before the present invention is described in greater detail with reference to the accompanying preferred embodiments, it should be noted herein that like elements are denoted by the same reference numerals throughout the disclosure. [0015] Referring to FIG. 1, the first preferred embodiment of an electric fan 100 according to the present invention is shown to include a motor unit 10, a pair of opposite fan units 20, a bracket 30, a stand 40, and a rotation-enabling mechanism. [0016] The motor unit 10 includes a motor 12 having two opposite output shafts 13, and a motor casing 11 surrounding the motor 12 and having a bottom side 16 that has two opposite end portions 161. A pair of protrusions 15 protrude respectively from the end portions 161 of the bottom side 16 of the motor casing 11. [0017] The fan units 20 are coupled respectively to and driven by the output shafts 13. [0018] The bracket 30 is disposed below the motor unit 10, and has two opposite securing portions 311 that are respectively secured to the end portions 161 of the bottom side 16 of the motor casing 11, and a supporting shaft 32 that is connected to and that is disposed between the securing portions 311. In this embodiment, the bracket 30 includes a top plate 31 that has two opposite end portions which define respectively the securing portions 311 of the bracket 30, and a middle portion 312 that is disposed between the end portions of the top plate 31. The supporting shaft 32 extends downwardly from the middle portion 312 of the top plate 31. The bracket 30 further includes an L-shaped plate 34 that has a vertical portion 341 extending downwardly from one of the end portions of the top plate 31, and a horizontal portion 342 extending from the vertical portion 341 and cooperating with the vertical portion 341 to define a recess 343 therebetween. The securing portions 311 of the bracket 30 are respectively secured to the protrusions 15 on the bottom side 16 of the motor casing 11 through fastening screws 33. Continue reading about Electric fan... Full patent description for Electric fan Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Electric fan 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 Electric fan or other areas of interest. ### Previous Patent Application: Vacuum pumping arrangement Next Patent Application: Apparatus for preventing backflow of gas of scroll compressor Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Electric fan patent info. IP-related news and info Results in 0.11761 seconds Other interesting Feshpatents.com categories: Accenture , Agouron Pharmaceuticals , Amgen , AT&T , Bausch & Lomb , Callaway Golf 174 |
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