Patent ID: 6736618
Filing Date: 2004-05-18
Classification: F04B

Abstract:
A pump (10) comprising:a cylinder (11); a tube (14) partially and movably inserted in the cylinder (11); a hollow piston (142) being in fluid communication with the tube (14) and movably received in the cylinder (10) for pumping; a nozzle (15) being in fluid communication with the tube (14) and including an end face (151) in compliance with a first external structure (40); a hollow handle (30) being mounted on the cylinder (11) between a first mode preventing their relative movement and a second mode allowing their relative movement, the hollow handle (30) including an open end through which the tube (14) is inserted and a closed end with an external face (34) in compliance with a second external structure (40); and an elastic element (35) compressed between an end of the cylinder (11) and the closed end of the hollow handle (30), further comprising at least one block (22) formed on one of an external face of the cylinder (11) and an internal face of the hollow handle (30) and at least one L-shaped groove (32) defined in the remaining one of the external face of the cylinder (11) and the internal face of the hollow handle (30), the at least one L-shaped groove (32) including a transverse section (322) for receiving the at least one block (22) in the first mode and a longitudinal section (321) for receiving the at least one block (22) in the second mode.