Device for removing fluid from a container with pressurized air and thereafter placing the container under vacuum

A device to empty fluid from a sealed pressure container by use of pressurized air, and to thereafter place the container under vacuum, said device comprising:

• a sleeve portion with an upper end and lower end, an interior chamber located therein, a ring portion extending into said interior chamber and defining a seating surface at a lower side thereof, said ring portion having a hole formed therethrough;
• a slidable seat means with an aperture formed therethrough, said seat means being located in said interior chamber below said ring portion and sized to loosely fit in said interior chamber and adapted to seat on said ring portion;
• an upper cap means with a longitudinal air channel formed therethrough located at said upper end of said sleeve portion;
• a lower cap means with a longitudinal air channel formed therethrough placed at said lower end of said sleeve portion;
• a spring means placed in said interior chamber between said lower cap means and said slidable seat means, said spring means tending to bias said slidable seat means into contact with said ring portion;
• a floatable ball located above said slidable seat means and adapted to fluid tightly seat on and seal off its aperture, said floatable ball being sized to freely pass through said hole in said ring portion;
• and
• a vacuum generating means comprising a flow-through channel, a junction air channel in communication with said flow-through channel at an upper end and in communication with said channel in said upper cap means, and an air flow valve with opened and closed positions located downstream of said junction air channel.