Patent ID: 8747772

Claim:
A device for treating batches of objects with gas, steam or vapor, the device comprising a closable chamber for containing said objects and at least one ejector device for generating a secondary gas stream within the chamber by means of a primary gas stream, the at least one ejector device having no moving parts for generating the secondary gas stream, the at least one ejector device located within said chamber and the at least one ejector device including: a secondary flow channel having an inlet and an outlet in said chamber for drawing a secondary gas from said chamber and exhausting said secondary gas back into said chamber to generate said secondary gas stream within said chamber wherein the secondary gas flows through the at least one ejector device in an essentially straight line, and a second inlet fluidly connecting the secondary flow channel to a source of pressurized primary gas wherein the primary gas draws the secondary gas into the at least one ejector device through said inlet of said secondary flow channel.