Patent ID: 8272626

Claim:
A bubbler comprising a sealable vessel capable of containing a substance, the vessel having a wall with an internal surface, an inlet and an outlet for delivery of a carrier gas into and out of the vessel, a conduit having a base, and wherein the inlet or outlet is connected to the conduit, a member attached to the conduit and positioned between said inlet and said outlet, the member having a perimeter and a plurality of apertures at predefined spaced apart intervals and distributed therein in a range of about 5 to about 25 apertures per square cm, and the member having an upper surface and a lower surface connected by at least one side to thereby define a cavity, wherein the perimeter of the member is in contact with the internal surface of the wall of the vessel around the perimeter of the member, and wherein the lower surface of the member is in contact with a bottom portion of the vessel.