Circular grill for an air circulator unit

Abstract

The present disclosure relates to a grill for an air circulator. The grill is configured to divert airflow from an airflow source. The air circulator includes a center hub with a plurality of arcuate ribs coupled to and extending outwardly from the center hub. The arcuate ribs extend outwardly to an outer perimeter of the circular grill.

What is claimed is: 
     
         1 . A circular grill for directing airflow from an airflow source, the circular grill comprising:
 a center hub;   an outer perimeter; and   a plurality of arcuate ribs extending outwardly from and coupled to the center hub to the outer perimeter of the circular grill, each rib comprising a first portion and a second portion, the first portion and the second portion forming a first angle between 0° and 90°, and each rib having a cross sectional aspect ratio between 4:1 and 1:4.   
     
     
         2 . The circular grill of  claim 1 , where a first chord length of each rib is at least about 2 inches. 
     
     
         3 . The circular grill of  claim 1 , where a second chord length of each rib is at least about one inch. 
     
     
         4 . The circular grill of  claim 1 , where a leading edge of each rib is curved. 
     
     
         5 . The circular grill of  claim 1 , where a trailing edge of each rib is pointed. 
     
     
         6 . The circular grill of  claim 1 , where the first angle is between 25° and 50°. 
     
     
         7 . An device comprising:
 an airflow circulator; and   a circular grill coupled to the airflow circulator, the circular grill comprising:
 a center hub; 
 an outer perimeter; and 
 a plurality of arcuate ribs extending outwardly from and coupled to the center hub to the outer perimeter of the circular grill, each rib comprising a first portion and a second portion, the first portion and the second portion forming a first angle between x° and y°, and each rib having an aspect ratio between a and b. 
   
     
     
         8 . The circular grill of  claim 7 , where a first chord length of each rib is at least about 2 inches. 
     
     
         9 . The circular grill of  claim 7 , where a second chord length of each rib is at least about one inch. 
     
     
         10 . The circular grill of  claim 7 , where a leading edge of each rib is curved. 
     
     
         11 . The circular grill of  claim 7 , where a trailing edge of each rib is pointed. 
     
     
         12 . The circular grill of  claim 7 , where the first angle is between 25° and 50°.