Patent Publication Number: US-6655926-B2

Title: Portable blower

Description:
FIELD OF THE INVENTION 
     The present invention relates to a blower which has a casing in which a motor is received and a handle is connected to a side of the casing. The casing protects the motor from being accessed by water. 
     BACKGROUND OF THE INVENTION 
     A conventional blower generally includes a base with a motor connected to a top of the base and a shaft of the motor extends through a casing which has an opening. A blade assembly is connected to the shaft and located in the casing so that when the motor is operated, the blade assembly generates air flows toward the opening of the casing. However, the motor is exposed outside so that it tends to be rusted because moistures and rains. Furthermore, the whole assembly including the base, the motor and the casing are huge so that it is not convenient to be moved. In addition, the positioning of the motor and the casing requires a lot of bolts and it takes a lot of time to install the bolts one by one. The bolts are also incurred by rust. 
     The present invention intends to provide a portable blower that has a casing to enclose the motor therein and a handle is connected to the casing so that it is easily to be moved. 
     SUMMARY OF THE INVENTION 
     In accordance with one aspect of the present invention, there is provided a blower which comprises a casing having an opening defined in a top surface thereof and a plurality of sink areas are defined in the top surface and located around a periphery of the opening. To recesses are defined in an outer periphery of the casing and a handle is connected to one of the two recesses, and an air inlet is defined in an inside of the other recess of the casing. 
     A motor is enclosed by the casing and has a plurality lugs which are engaged with the sink areas. A shaft extends through the opening of the casing and a blade assembly is connected to the shaft. 
     A cover is fixedly connected to the top surface of the casing and has an air outlet. The blade assembly is enclosed by the cover. 
     The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an exploded view to show the blower of the present invention; 
     FIG. 2 is a perspective view to show the blower of the present invention; 
     FIG. 3 is a perspective view to show the blower of the present invention and the handle is shown, and 
     FIG. 4 is a cross sectional view to show the blower of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIGS. 1 to  4 , the blower of the present invention comprises a casing  10  having four sides and a top surface  11 . An opening  111  is defined in the top surface  11  of the casing  10  and two recesses  12  and  120  are defined in two sides of the casing  10 . Four sink areas  112  are defined in the top surface  11  and located around a periphery of the opening  111 . A handle  14  is connected to the casing  10  and located in the recess  120 . An air inlet  13  is defined in an inside of the recess  12  of the casing  10 . A switch  15  is connected to one of the other two sides of the casing  10 . 
     A motor  30  is enclosed by the casing  10  and has four lugs  22  extending from the motor  30 . The lugs  22  are engaged with the sink areas  112  and are fixed to the top surface  11  by bolts. A shaft of the motor  20  extends through the opening  111  of the casing  10  and a blade assembly  21  is connected to the shaft. 
     A groove  113  is defined in the top surface  11  of the casing  10  and a seal  16  is received in the groove  113 . A periphery of an open bottom of the cover  30  is pressed on the seal  16 . A cover  30  is fixedly connected to the top surface  11  of the casing  10  and has an air outlet  31 . The blade assembly  21  is enclosed by the cover  30 . 
     The casing  10  protects the motor  20  from being accessed by moisture and/or rain drops. The number of the air inlet  13  can be multiple and the air sucked from the air inlets  13  take the heat of the motor away. The handle  14  is convenient for the users to move the blower to desired positions. 
     While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.