Counter-rotational electric scrubber

Abstract

An electric scrubber includes a housing, an electric motor mounted within a housing, a pair of scrubbing blocks mounted to the housing for rotation about a common axis, and a torque transmission transmitting torque from the electric motor to the scrubbing blocks in such manner that the scrubbing blocks rotate simultaneously in mutually opposite directions about the common axis.

1 . An electric scrubber, comprising: 
 a housing,    an electric motor mounted within a housing,    a pair of scrubbing blocks mounted to the housing for rotation about a common axis, and    a torque transmission transmitting torque from the electric motor to the scrubbing blocks in such manner that the scrubbing blocks rotate simultaneously in mutually opposite directions about the common axis.    
   
   
       2 . The electric scrubber of  claim 1  wherein one of the scrubbing blocks has a circular array of inwardly directed teeth and the other of the scrubbing blocks has a circular array of outwardly facing teeth and wherein the torque transmission comprises a pinion meshing with both of said circular arrays of teeth.  
   
   
       3 . The electric scrubber of  claim 2  wherein the torque transmission further includes a worm gear in mesh with an intermediate gear with which the pinion shares a common shaft.  
   
   
       4 . The electric scrubber of  claim 2  wherein both circular arrays of teeth are mounted in a common plane.  
   
   
       5 . The electric scrubber of  claim 1  wherein each scrubbing block comprises surface-interactive elements mounted upon a common plane.  
   
   
       6 . The electric scrubber of  claim 1  wherein each scrubbing block comprises surface-interactive elements radiating from a common axis.  
   
   
       7 . The electric scrubber of  claim 1  further comprising a dispenser within the housing for delivering a liquid agent to at least one of the scrubbing blocks.  
   
   
       8 . The electric scrubber of  claim 1  comprising a handle detachable from the housing and encasing a rechargeable battery in circuit with the electric motor via terminals exposed upon detachment of the handle from the housing.  
   
   
       9 . The electric cover of  claim 8  wherein the handle comprises an elongate extension on which the terminals are located and wherein the housing comprises an elongate recess into which the extension is received.  
   
   
       10 . The electric scrubber of  claim 9 , in combination with a recharging stand attachable to a source of main power and comprising an elongate recess into which the extension is received.