Portable evaporative cooler

Abstract

A portable evaporative cooler includes a first reservoir for holding a working fluid and having an air inlet and an air outlet. A partition separates the first reservoir from a second reservoir which stores a reserve fluid. A chute curved from the partition through the second reservoir directs the flow of air from the air outlet through a curved path. A valve in the partition replenishes the working fluid from the reserve fluid in the second reservoir and is responsive to a sensor disposed within the first reservoir.

1 . A portable evaporative cooler comprising;
 a first reservoir for holding a working fluid,   said first reservoir having an air inlet for ingress and flow of air over said working fluid to exchange heat between said working fluid and the air,   a sensor disposed within said first reservoir for producing a signal in said first reservoir,   a second reservoir for storing a reserve fluid,   a partition separating said first reservoir from said second reservoir, and   a valve in said partition and responsive to said signal produced by said sensor for replenishing said working fluid from said reserve fluid in said second reservoir to said first reservoir.   
   
   
       2 . A portable evaporative cooler as set forth in  claim 1  wherein said first reservoir has an air outlet. 
   
   
       3 . A portable evaporative cooler as set forth in  claim 2  including a chute being curved from said partition through said second reservoir for directing the flow of air from said air outlet in said first reservoir through a curved path. 
   
   
       4 . A portable evaporative cooler as set forth in  claim 3  including a cover plate disposed on said first reservoir and said second reservoir and having an air opening for receiving air directed by said chute. 
   
   
       5 . A portable evaporative cooler as set forth in  claim 4  wherein said cover plate has a fill cap for replenishing said reserve fluid in said second reservoir. 
   
   
       6 . A portable evaporative cooler as set forth in  claim 5  wherein said fill cap has an air passageway. 
   
   
       7 . A portable evaporative cooler as set forth in  claim 1  wherein said sensor produces a signal at a predetermined level of said working fluid in said first reservoir for activating said valve. 
   
   
       8 . A portable evaporative cooler as set forth in  claim 1  including a cooling module disposed within said first reservoir for cooling air flowing over said working fluid. 
   
   
       9 . A portable evaporative cooler as set forth in  claim 1  including a fan module disposed adjacent said air inlet of said first reservoir for propelling air through said air inlet. 
   
   
       10 . A portable evaporative cooler as set forth in  claim 9  wherein said fan module has a plurality of fans. 
   
   
       11 . A portable evaporative cooler as set forth in  claim 9  including a filter disposed adjacent said fan module for filtering air flowing into said fan module. 
   
   
       12 . A portable evaporative cooler as set forth in  claim 11  including an inlet cover surrounding said filter and having a plurality of air inlet openings. 
   
   
       13 . A portable evaporative cooler as set forth in  claim 1  including a cover plate disposed on said first reservoir and said second reservoir having an air opening and a plurality of exhaust openings disposed over said first reservoir for egress and flow of exhaust from said first reservoir. 
   
   
       14 . A portable evaporative cooler as set forth in  claim 13  including an exhaust hood disposed on said cover plate for receiving air from said exhaust openings. 
   
   
       15 . A portable evaporative cooler as set forth in  claim 13  wherein said cover plate has a fill cap for replenishing said reserve fluid in said second reservoir. 
   
   
       16 . A portable evaporative cooler as set forth in  claim 15  wherein said fill cap has an air passageway. 
   
   
       17 . A portable evaporative cooler comprising;
 a first reservoir for holding a working fluid,   said first reservoir having an air inlet for ingress and flow of air over the working fluid to exchange heat between the working fluid and the air and an air outlet,   a sensor disposed within said first reservoir for producing a signal at a predetermined level of said working fluid in said first reservoir,   a cooling module disposed within said first reservoir for cooling air flowing over said working fluid,   a second reservoir for storing a reserve fluid,   a partition separating said first reservoir from said second reservoir,   a cover plate disposed on said first reservoir and said second reservoir and having an air opening and a plurality of exhaust openings disposed over said first reservoir for egress and flow of exhaust from said cooling module in said first reservoir,   an exhaust hood disposed on said cover plate for receiving exhaust from said exhaust openings,   said cover plate having a fill cap for replenishing said reserve fluid in said second reservoir,   said fill cap having an air passageway,   a fan module having a plurality of fans disposed adjacent said air inlet of said first reservoir for propelling air through said air inlet,   a filter disposed adjacent said fan module for filtering air flowing into said fan module,   an inlet cover surrounding said filter and having a plurality of air inlet openings,   a valve in said partition and responsive to said signal produced by said sensor for replenishing said working fluid from said reserve fluid in said second reservoir to said first reservoir, and   a chute being curved from said partition for directing the flow of air from said air outlet in said first reservoir through a curved path to said air opening in said cover plate.