Vacuum cleaner for reservoirs

Abstract

A vacuum cleaner for reservoirs, especially swimming pools, including a working chamber provided with an inlet for liquid, connected with a vacuum generating unit. Between the inlet of liquid and the vacuum generating unit a rotary-shaped rolling rotor is placed in the flow of drawn in liquid. The rolling rotor is arranged in a swivelling and rotary manner and encompassed with a surface for rolling. In the contact point between the rolling rotor and the surface for rolling the rolling rotor has a smaller diameter than the surface for rolling. The rotor is connected with at least one brush.

1 - 7 . (canceled)  
   
   
       8 . A vacuum cleaner for reservoirs, comprising: 
 a working chamber provided with an inlet for liquid, connected with a vacuum generating unit;    a rotary-shaped rolling rotor placed in a flow of drawn in liquid between the inlet of liquid and the vacuum generating unit, the rolling rotor configured in swivelling and rotary manner and encompassed with a surface for rolling, while in a contact point between the rolling rotor and the surface for rolling the rolling rotor has a smaller diameter than the surface for rolling, and the rotor is connected with at least one brush.    
   
   
       9 . The vacuum cleaner as in  claim 8 , wherein the at least one brush is attached to the rotor by a swinging joint.  
   
   
       10 . The vacuum cleaner as in  claim 8 , wherein the rotor is shaped like a hollow hemisphere with its open side upstream, while the at least one brush is arranged along an circumference edge of the hollow hemisphere.  
   
   
       11 . The vacuum cleaner as in  claim 8 , wherein the rolling rotor is placed in the working chamber and the surface for rolling is formed on an inner wall of the working chamber.  
   
   
       12 . The vacuum cleaner as in  claim 8 , wherein the working chamber has at its bottom edge a set of the inlets for liquid.  
   
   
       13 . The vacuum as in  claim 8 , wherein the working chamber is connected with the vacuum generating unit with a flexible hose, while the bar is attached to the working chamber to move the working chamber.  
   
   
       14 . The vacuum cleaner as in  claim 8 , wherein the at least one brush is fitted to be replaceable.