Patent ID: 7658597

Claim:
Pump with at least one plunger piston ( 6 ) comprising: a head ( 1 ) in which are formed intake and delivery ducts ( 2 , 3 ) and respective intake and delivery valves, a cup shaped pump body ( 4 ) formed in one piece having a bottom wall and a completely open end opposite the bottom wall associated with said head ( 1 ), a drive means ( 8 ) for driving said at least one plunger piston ( 6 ) and received in the pump body through said completely open end, wherein the pump body comprises attachment and support means ( 5 ) for attaching said pump body ( 4 ) to a body containing a drive motor for the pump, wherein said bottom wall ( 40 ) comprises at least one seat ( 41 ) for the sliding of said at least one plunger piston ( 6 ), wherein said open end of said pump body faces towards said motor, and wherein said pump body has an inner peripheral dimension that is transverse to a longitudinal axis of said drive means and is at a maximum at the open end.