Vortex tube

Description

FIG. 1: Perspective

FIG. 2: Front

FIG. 3: Rear

FIG. 4: Left

FIG. 5: Right

FIG. 6: Top; and,

FIG. 7: Bottom.

In the figures, the broken lines are for the purpose of illustrating portions of the vortex tube that form no part of the claimed design.

Claims

The ornamental design for a vortex tube, as shown and described.