Patent ID: 11883773
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 2:
3. The assembly according to claim 1, wherein:
said first disk has an upper surface, a lower surface and perimeter wall extending downwardly from said lower surface, said perimeter wall of said first disk having an outwardly facing surface and a distal edge with respect to said lower surface, each of said first air holes extending through said upper surface and said lower surface, said first air holes being spaced apart from each other and being arranged into a plurality of concentric rings each extending around a center of said first disk, said male threads being integrated into said outwardly facing surface of said perimeter wall of said first disk;
said perimeter wall of said first disk has a first lip extending laterally away from said outwardly facing surface, said first lip being aligned with said distal edge of said perimeter wall of said first disk;
said first disk has a hole extending through said upper surface and said lower surface, said hole in said first disk being aligned with said center of said first disk, said hole in said first disk being aligned with said primary hole in said lid when said first disk is attached to said lid.