Patent ID: 6681812
Filing Date: 2004-01-27
Classification: F01P,Y10S

Abstract:
An attachment for a vacuum pump, for evacuating a first fluid from a container and for introducing a second fluid into the container, said attachment having:a body having: a first inlet for the first fluid; a second inlet for the second fluid; an outlet; a passage connecting the outlet to each of the inlets, the outlet being attachable to the vacuum pump and the first inlet being attachable to the container; and a valve within the passage adjacent the outlet, said valve being moveable between a first position in which the passage is closed and a second position in which the passage is open, the valve being biased to remain in the first position, and whilst a vacuum is applied to the attachment by the vacuum pump, the valve is in the second position and the first fluid may be drawn into the vacuum pump; and an operating member for regulating the flow of fluid through the second inlet.