Device and method for degassing and gassing containers

1. A device for degassing and gassing containers, comprising at least one chamber in which an open container can be received for a degassing and/or gassing process,

wherein the chamber has a bell housing, which together with a base forms the chamber,

wherein the bell housing is mounted so as to be displaceable in a vertical direction and can be respectively raised and lowered for the purposes of opening and closing the chamber,

wherein a first connection opening is provided at the base, by means of which the first connection opening the chamber can be placed in communication with a gas supply,

wherein a second connection opening is provided at the base, by means of which the second connection opening the chamber can be placed in communication with a vacuum pump,

wherein a cover element for the received open container is provided in the chamber,

wherein the cover element is mounted on the bell housing,

wherein the cover element has at least one opening for a passage of gas, and

wherein the cover element can, for a degassing and/or gassing process, be placed sealingly onto a container edge of a received open container or inserted sealingly into an interior space of a received open container, such that a passage of gas into and out of the container during gassing and degassing occurs exclusively via the at least one opening provided on the cover element.

2. The device as claimed in claim 1 , wherein the cover element has multiple openings distributed over a surface of the cover element.

3. The device as claimed in claim 1 , wherein a filter element is provided at the at least one opening of the cover element.

4. The device as claimed in claim 3 , wherein the filter element is configured as a lattice or fabric.

5. The device as claimed in claim 4 , wherein the filter element is configured as a metal lattice or fabric.

6. The device as claimed in claim 3 , wherein the filter element is received exchangeably on the cover element.

7. The device as claimed in claim 1 , wherein the chamber is provided on a transport system.

8. The device as claimed in claim 1 , wherein the cover element is mounted so as to be adjustable in a vertical direction.

9. The device as claimed in claim 1 , wherein the chamber is provided on a carousel with an axis of rotation and a number N of positions distributed over a circumference of the carousel.

10. The device as claimed in claim 1 , wherein an intermediate base is provided, on which intermediate base the container stands, such that a container base is spaced apart from the base with the first connection opening and the second connection opening.

11. A method for degassing and gassing a container, wherein the container is, for a degassing and/or gassing process, introduced in an open state into a chamber, wherein, for a degassing and/or gassing process, wherein the chamber has a bell housing, which together with a base forms the chamber, wherein the bell housing is mounted so as to be displaceable in a vertical direction and is respectively raised and lowered for the purposes of opening and closing the chamber, wherein a first connection opening and a second connection opening are provided at the base, the method comprising

closing the chamber by lowering the bell housing,

placing a cover element provided in the chamber and mounted to the bell housing sealingly onto a container edge of the open container or inserting the cover element sealingly into an interior space of the open container,

communicating the chamber via the second connection opening with a vacuum pump for a degassing,

communicating the chamber via the first connection opening with a gas supply for a gassing,

wherein a passage of gas out of and into the container during degassing and/or gassing of the container occurs exclusively via at least one opening provided on the cover element.