Patent ID: 6824021
Filing Date: 2004-11-30
Classification: B05B

Abstract:
Actuating head (12) of a double-acting pump (1) for ejecting a product (38) from a container (2), wherein the actuating head (12) has an outlet duct (13a-13d) leading to an ejection opening (16), wherein a closing piece (18) biased by a spring (17) is arranged in the outlet duct, wherein the closing piece (18) in its closed position directly seals off the ejection opening (16) under the force of the spring (17) and wherein the closing piece (18) releases the flow of the product (38) through the outlet duct (13a-13d) and through the ejection opening (16) as a result of the pressure occurring during actuation of the double-acting pump (1) against the force of the spring (17), wherein a first outlet duct section (13d) following the ejection opening (16) is surrounded by a tube (15) in which the closing piece (18) is sealingly slidingly guided and which is placed in a bore (14) in the body of the actuating head (12), wherein the bore (14) defines between itself and the tube (15) an annular space forming a second outlet duct section (13b), wherein the annular space is connected to the first outlet duct section (13d) through a third outlet duct section (13c), which traverses the wall of the tube (15).