Pressure cooker

1. A cooker device, comprising:

a main body with a chamber therein;

a removable inner vessel configured to fit inside said chamber;

an outer lid pivotally mounted on said main body such that the outer lid can open and close relative to said main body;

an inner lid mounted to said outer lid, said inner lid configured to cover said inner vessel when said outer lid is closed with said main body;

a rotatable handle mounted on said outer lid, said handle rotates in a first direction to a locking position and rotates in a second direction to an unlocking position;

said handle connected to a first locking mechanism for locking said outer lid with said main body, wherein:

when said handle is in said locking position, said outer lid is locked wit said main body;

when said handle is in said unlocking position, said outer lid is unlocked from said main body;

said handle connected to a second locking mechanism for locking said inner lid with said inner vessel, wherein:

when said handle is in said locking position, said inner lid is locked with said inner vessel; and,

when said handle is in said unlocking position, said inner lid is unlocked from said inner vessel:

whereby, said handle locks and unlocks said first locking mechanism and said second locking mechanism simultaneously.

2. The cooking device of claim 1 , said second locking mechanism comprising:

said inner vessel having a flange;

said outer lid having a rotatable rim with a protrusion configured to engage with said flange;

wherein, when said outer lid is closed onto said main body and said handle is rotated to said locking position, said rotatable rim rotates such that said protrusion slides under said flange such that said inner lid is locked with said inner vessel.

3. The cooking device of claim 1 , said second locking mechanism comprising:

said inner vessel having at least two flanges with a recess therein between;

said outer lid having a rotatable rim with a protrusion configured to engage with one of said flanges:

wherein, when said outer lid is closed onto said main body and said handle is in said unlocking position, said protrusion is aligned with said recess, and when said handle is rotated to said locking position, said rotatable rim rotates such that said protrusion slides into alignment with said flange such that engagement between said protrusion and said flange locks said inner lid with said inner vessel.

4. The cooking device of claim 3 , further comprising:

said handle connected to a locking arm that rotates when said handle is rotated, said handle is connected to said rotatable rim of said outer lid;

wherein, when said handle is rotated to said locking position, said locking arm rotates to move said rotatable rim such that said protrusion moves into alignment with said flange of said inner vessel, thus locking said inner lid with said inner vessel.

5. The cooking device of claim 3 , further comprising:

said handle connected to a locking arm that rotates when said handle is rotated;

wherein, when said handle is rotated to said unlocking position, said locking arm moves said rotatable rim such that said protrusion moves into alignment with said recess of said inner vessel, thus allowing said inner lid to be detached from said inner vessel.

6. The cooking device of claim 1 , said first locking mechanism further comprising:

a clasp assembly mounted in said outer lid, said clasp assemble removable engages with the main body to lock the outer lid;

said handle connected to a locking arm that rotates when said handle is rotated;

wherein, when said handle is rotated to said locking position, said locking arm is engaged with said clap assembly to lock said outer lid with said main body.

7. The cooking device of claim 1 , further comprising:

an electromagnetic valve;

an air-releasing assembly mounted on the inner lid;

an air-releasing conduit with the air-releasing assembly; the air-releasing conduit traversing the inner lid such that air can go in or out of the inner vessel through the air-releasing conduit;

a ball bearing that is movable mounted within the air-releasing assembly; the ball bearing having a sealed position and a released position; wherein the ball bearing is configured to seal the air-releasing conduit when the ball bearing is at the sealed position, and wherein the ball bearing is configured to open the air-releasing conduit for air to be released from the inner vessel when the ball bearing is at the released position;

wherein the ball bearing and the electromagnetic valve are configured such that the ball bearing's position is controlled by the electromagnetic valve.

8. The cooking device of claim 7 , wherein the electrical circuit is controlled by a user interface such that the user interface can control the ball bearing's position to release air from the inner vessel.

9. The cooking device of claim 8 , wherein the user interface is capable of being controlled remotely.

10. The cooking device of claim 7 , wherein the outer lid further comprises an external steam releasing opening on an upper surface of the outer lid and further comprises a passage which is connected to the external steam releasing opening at a first end and configured to communicate with the air-releasing assembly at a second end.

11. The cooking device of claim 10 , wherein the passage has a floor that is sloped toward the air-releasing assembly and the passage is connected to a water storage cup.

12. The cooking device of claim 1 further comprising a temperature measuring assembly mounted on the inner lid.