Brush configuration for a powered skin cleansing brush appliance

Abstract

The bristle arrangement includes a first brush portion which has a first set of bristles, the first brush portion being arranged in an annular configuration, and remains stationary in operation of the appliance. The bristle arrangement also includes a second brush portion which has a second set of bristles, wherein the second brush portion oscillates at a selected frequency. The second set of bristles has a circular arrangement, fitting within the opening of the annular arrangement of the first set of bristles. The first and second sets of bristles have a diameter within the range of 3 mils to 5 mils, and a length in the range of 0.3 to 0.425 inches. The first bristle set includes 40 to 100 bristle tufts and the second bristle set includes 40 to 120 bristle tufts, which are substantially evenly spread, respectively.

1 . A bristle arrangement for a powered skin cleaning appliance, comprising: 
 a first brush portion which includes a first set of bristles with the first brush portion remaining stationary in operation; a second brush portion which includes a second set of bristles, the second brush portion oscillating when the appliance is in operation, wherein the first and second sets of bristles are within the range of 3 to 5 mils in diameter and 0.3 to 0.5 inches in length, and wherein the first brush portion includes approximately 40 to 100 bristle tufts and the second set of bristles includes 40 to 120 bristle tufts, spaced over the area of the brushhead.    
   
   
       2 . The bristle arrangement of  claim 1 , including a space between the first set of bristles and the second set of bristles, within the range of 0.050-0.125 inches.  
   
   
       3 . The bristle arrangement of  claim 1 , wherein the preferred range for the number of bristle tufts is 60 to 90 in the first brush portion and 70 to 110 in the second brush portion.  
   
   
       4 . The bristle arrangement of  claim 1 , wherein the preferred number of bristle tufts in the first and second sets of bristles is 80 and 96, respectively.  
   
   
       5 . The bristle arrangement of  claim 1 , wherein the first brush portion is annular in configuration and includes a plurality of rings of bristle tufts, and wherein the second brush portion is circular and fits within the annular opening of the first brush portion, wherein the first and second sets of bristles, respectively, are substantially evenly spaced.  
   
   
       6 . The bristle arrangement of  claim 1 , wherein the diameter of the bristles is approximately in the range of 3-4 mils.