Air blowing device

Abstract

The present invention provides an improved air blowing device formed by a base housing and a motor driving an impeller to create an air flow. A hollow housing is mounted on the base at a connection point. The housing assumes a substantially triangular configuration with the apex of the triangle forming the connection with the base and the forming the top of the housing. The housing is provided with an air discharge slot opening formed by an outer extended flat side wall and an inner shortened flat side wall. The air flow created by the motor impeller enters the hollow housing and exits through the air discharge slot opening thereby creating a collimated beam of air forward of the air blowing device.

1 . An air blowing device for generating and directing a beam of collimated air flow from said device comprising;
 a base formed by a top wall, bottom wall, surrounding side walls and an interior chamber,   air inlets formed in said surrounding side walls to allow air to enter said interior chamber,   a motor mounted in said interior chamber, said motor including blower means for creating an air stream within said interior chamber,   a housing having a top end and a bottom end and mounted on said base at its bottom end at a connection point,   said housing defining a central opening and having a hollow interior chamber and having a front side and rear side, and said central opening having a central axis,   a slot formed in said housing extending along the periphery thereof adjacent the front side thereof, said slot forming an air discharge opening,   said slot defined by an outer extended flat surface and an inner shortened flat surface,   said housing having an opening at said connection point being in fluid communication with said base interior chamber such that the air stream created by said blower means is directed from said base interior chamber into said opening and into said interior air chamber of said housing and exits through said slot air discharge opening, whereby the air stream created by said blower means exits said device through said slot discharge opening and expands inwardly toward said housing central opening to create a beam of collimated air flow paralleling the axis of said housing opening.   
     
     
         2 . The air blowing device as set forth in  claim 1  above wherein, the angle between said housing opening and said base interior chamber is less than 70°. 
     
     
         3 . The air blowing device as set forth in  claim 2  above, wherein said angle is approximately 45°. 
     
     
         4 . The air blowing device as set forth in  claim 1  above, wherein said housing is formed as a continuous structure having a top end and a bottom end, said housing being mounted to said base at the bottom end thereof at a connection point, such that the air stream created by said blower means will flow throughout said hollow interior chamber thereof and exit through said slot air discharge opening. 
     
     
         5 . The air blowing device as set forth in  claim 4  above, wherein said housing assumes a substantially triangular configuration with the apex thereof forming the bottom end which is mounted to said base at the connection point therebetween. 
     
     
         6 . The air blowing device as set forth in  claim 4  above, wherein said housing assumes a substantially diamond shaped configuration with narrowed top and bottom ends, and said narrow bottom end being mounted to said base at said connection point therebetween. 
     
     
         7 . The air blowing a device as set forth in  claim 1  above, wherein an outer chamber is provided, said outer chamber being mounted to said base's side walls and formed by surrounding side walls with air openings formed therein, said outer chamber forming at least one inlet duct thereby to optimize air flow into said base interior chamber. 
     
     
         8 . The air blowing device as set forth in  claim 7  above wherein said outer chamber extends around said base and forms an extension of said base. 
     
     
         9 . The air blowing device as set forth in  claim 7  above, wherein the interior of said base surrounding side walls are provided with porous filter material mounted thereon thereby to form a noise deadening barrier between said base interior chamber and said outer chamber. 
     
     
         10 . The air blowing device set forth in  claim 1  above, wherein said slot's air discharge opening has a defined width between said outer extended flat surface and said inner shortened flat surface. 
     
     
         11 . The air blowing device as set forth in  claim 10  above wherein said width of said slot air discharge opening is narrower adjacent said connection point and widens to its greatest width at the top end of said housing thereby to make the air flow more uniform at all points around the periphery of said housing. 
     
     
         12 . An air blowing device for generating and directing a collimated air flow from said device comprising,
 a base formed by a top wall, bottom wall, surrounding side walls and an interior chamber,   air inlets formed in said surrounding side walls to allow air to enter said interior chamber,   a motor mounted in said interior chamber, said motor including blower means for creating an air stream within said interior chamber,   at least one housing having a top end and a bottom end and mounted on said base at its bottom end at a connection point,   said housing having an interior chamber and defined by a front side, a rear side, an extended outer side wall and a shortened inner side wall,   a slot formed in said housing extending along the periphery thereof adjacent the front side thereof, said slot forming an air discharge opening,   said slot formed between said extended outer side wall and said shortened inner side wall,   said housing having an opening at said connection point being in fluid communication with said base interior chamber such that the air stream created by said blower means is directed from said base interior chamber into said opening and into said housing interior chamber and exits through said slot air discharge opening,   whereby the air stream created by said blower means exits said device through said slot air discharge opening and creates a beam of collimated air flow.   
     
     
         13 . The air blowing device as set forth in  claim 12  above, wherein said device includes at least one pair of opposed housing structures mounted on said base in horizontally opposed relation defining a central space therebetween,
 whereby the air stream created by said blower means enters said interior chamber of each housing structure and exits through each of said slot air discharge openings, 
 and the air stream created by opposed housings creates a beam of collimated air flow therebetween. 
 
     
     
         14 . The air blowing device as set forth in  claim 12  above, wherein said housing comprises a continuous housing structure defined by a top end, a bottom end and mounted on said base at its bottom end at a connection point,
 said housing defining a central opening and having an interior chamber extending throughout said housing structure, and having a front side and a rear side and said central opening having a central axis, 
 whereby the air stream created by said blower means flows into said housing interior chamber and exits through said slot air discharge opening to create a beam of collimated air flow toward the central axis of said housing central opening. 
 
     
     
         15 . The air blowing device as set forth in  claim 1  above, wherein said device further includes a secondary housing mounted internally of said housing by a series of braces interconnecting said secondary housing to said housing,
 said secondary housing defining a central opening and having a hollow interior chamber and having a front side and rear side, and said central opening having a central axis, 
 each of said braces having a hollow interior and being in fluid communication with said hollow interior chamber of said housing and said secondary housing, 
 a secondary slot formed in said secondary housing extending along the periphery thereof adjacent the front side thereof, said slot forming a secondary air discharge opening, 
 and said secondary slot formed by an outer extended flat surface and an inner shortened flat surface. 
 
     
     
         16 . The air blowing device as set forth in  claim 15  above, wherein said secondary housing assures the same geometric configuration as said housing, and is sized to fit within the confines of said housing.