Rollable pumping apparatus

Abstract

A rollable pumping apparatus includes a collection vessel ( 4 ), an electrically operated delivery system ( 18 ) having a pumping device ( 20 ), a feed conduit connection member ( 22 ) and a delivery conduit connection member ( 24 ), through which liquid is fed into and is delivered out of the collection vessel ( 4 ), with the entire delivery system being held in a housing element releasably mountable on the collection vessel ( 4 ).

1 . A rollable pumping apparatus comprising a collection vessel ( 4 ); an electrically operated delivery system ( 18 ) including a pumping device ( 20 ), a feed conduit connection member ( 22 ) and a delivery conduit connection member ( 24 ), through which liquid is fed into and is delivered out of the collection vessel ( 4 ); and a housing element on which the entire delivery system is held and which is releasably mountable on the collection vessel ( 4 ).  
   
   
       2 . A rollable pumping apparatus according to  claim 1 , wherein the housing element is formed by a head ( 10 ) which closes the collection vessel ( 4 ).  
   
   
       3 . A rollable pumping apparatus according to  claim 1 , wherein the housing element is formed by a hood ( 34 ).  
   
   
       4 . A rollable pumping apparatus according to  claim 1 , wherein the pumping device ( 20 ) comprises a feed pump ( 26 ) connected with the feed conduit connection member ( 22 ) and a delivery pump ( 28 ) connected with the delivery conduit connection member ( 24 ).  
   
   
       5 . A rollable pumping apparatus according to  claim 4 , further comprising an overflow vessel ( 48 ) located in the collection vessel ( 4 ) and wherein the delivery pump ( 26 ) pumps liquid out of an overflow region ( 54 ) formed between an outer wall ( 50 ) of the overflow vessel ( 48 ) and an inner wall ( 52 ) of the collection vessel ( 4 ).  
   
   
       6 . A rollable pumping apparatus according to  claim 1 , wherein the delivery system ( 18 ) further includes control electronics ( 32 ) for the pumping device ( 20 ).  
   
   
       7 . A rollable pumping apparatus according to  claim 6 , further comprising a level sensor ( 44 ), and wherein the control electronics ( 32 ) controls the pumping device ( 20 ) in accordance with signals generated by the level sensor ( 44 ).  
   
   
       8 . A rollable pumping apparatus according to  claim 1 , further comprising a filtering device ( 46 ) for at least partially cleaning a delivery liquid.