Liquid delivery system

Abstract

A liquid delivery system comprising a base unit ( 2 ) comprising a liquid inlet in an upwardly facing surface, a liquid duct leading from the inlet to a liquid outlet above the liquid inlet; a pump for pumping the liquid from the inlet to the outlet; a motor to drive the pump; and a shroud extending upwardly in a manner which surrounds the inlet, the shroud having an upper edge which has a downwardly extending recess ( 20 ) for a part of its circumference; characterised by the system further comprising an insert ( 21 ) in the recess ( 20 ) which forms a liquid-tight seal with the recess ( 20 ) and defines, with the shroud, a liquid cavity in communication with the liquid inlet in the base.

1 . A liquid delivery system comprising:
 a base unit comprising
 a liquid inlet in an upwardly facing surface; 
 a liquid duct leading from the inlet to a liquid outlet above the liquid inlet; 
 a pump for pumping the liquid from the inlet to the outlet; 
 a motor to drive the pump; and 
 a shroud extending upwardly in a manner which surrounds the inlet, the shroud having an upper edge which has a downwardly extending recess for a part of its circumference; and 
 an insert in the recess which forms a liquid-tight seal with the recess and defines, with the shroud, a liquid cavity in communication with the liquid inlet in the base. 
   
     
     
         2 . A system according to  claim 2 , wherein the shroud has one or more additional recesses or openings, and the system further comprises corresponding further inserts dimensioned to fit in the additional recesses or openings. 
     
     
         3 . A system according to  claim 1 , further comprising a cover to cover the cavity. 
     
     
         4 . A system according to  claim 1 , wherein the base unit further comprises a sensor to sense the presence of an object in the vicinity of the outlet to trigger a dispensing operation. 
     
     
         5 . A system according to  claim 1 , wherein the base unit is a free standing unit. 
     
     
         6 . A system according to  claim 1 , wherein the base unit contains batteries to power the motor.