Portable negative pressure extraction coffee machine

A portable negative pressure infusion machine comprising:

• a bottom container (10) with a top opening (9) that is able to couple with a separate top container assembly (2);
• said top container assembly (2) comprising of an inner compartment (5) concentrically surrounded by a wall (4), wherein a channel space (6) forms between said compartment (5) and said wall (4);
• said top container assembly (2) further comprising of a flow hole (19) formed onto the surface of said channel space (6), wherein said flow hole (19) is directed towards the inside of said bottom container (10) when said top container assembly (2) is coupled to said bottom container (10);
• said top container assembly (2) further comprising a coupling neck (7) and a seal (8), wherein said coupling neck (7) interfaces with said top opening (9) of said bottom container (10) to limit displacement of top container assembly (2) into said bottom container (10);
• and wherein said seal (8) of said top container assembly (2) forms a hermetic seal with said bottom container (10) when said top container assembly (2) is coupled with said bottom container (10);
• said top container assembly (2) further comprising of an air pump (11) having an air flow inlet and an air flow outlet, a battery (12) to power said air pump (11), and a controller (15) connected to an user-accessible button (20) to switch said air pump (11) on or off, wherein said air pump (11), said battery (12), and said controller (15) are housed inside said compartment (5);
• said top container assembly (2) further comprising of a suction hole (13) connected to the air flow inlet of said air pump (11) and an exhaust hole (14) connected to the air flow outlet of said air pump (11), wherein said suction hole (13) is directed towards the inside of said bottom container (10) and said exhaust hole (14) is directed towards the outside of said bottom container (10) when said top container assembly (2) is coupled to said bottom container (10);
• and
• a removable filter (17) whose shape coincides with channel space (6), wherein said filter (17) sits atop said flow hole (19) when installed into said channel space (6) of said top container (2).