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

Claim 6:
7. The assembly according to claim 6, wherein:
said second disk has a top surface, a bottom surface and perimeter wall extending downwardly from said bottom surface, said perimeter wall of said second disk having an outwardly facing surface and a distal edge with respect to said bottom surface, each of said second air holes extending through said top surface and said bottom surface, said second air holes being spaced apart from each other and being arranged into a plurality of concentric rings each extending around a center of said second disk;
said perimeter wall of said second disk having a second lip extending laterally away from said outwardly facing surface of said perimeter wall of said second disk, said second lip being aligned with said distal edge of said perimeter wall of said second disk;
said second disk has a hole extending through said top surface and said bottom surface, said hole in said second disk being aligned with said center of said second disk, said hole in said second disk being aligned with said hole in said air filter when said second disk is attached to said lid.