Heat-resistant tube for vertical heat treatment equipment

Description

FIG. 1 is a perspective view of a heat-resistant tube for vertical heat treatment equipment showing our new design according to a first embodiment;

FIG. 2 is a front view thereof, the rear view, the right side view, and the left side view are omitted since the rear view, the right side view, and the left side view are the same as the front view;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a cross-sectional view taken along the line 5-5 in FIG. 3;

FIG. 6 is a perspective view of a heat-resistant tube for vertical heat treatment equipment showing our new design according to a second embodiment;

FIG. 7 is a front view thereof, the rear view, the right side view, and the left side view are omitted since the rear view, the right side view, and the left side view are the same as the front view;

FIG. 8 is a top view thereof;

FIG. 9 is a bottom view thereof; and,

FIG. 10 is a cross-sectional view taken along the line 10-10 in FIG. 8.

The dash-dot-dash lines in the figures indicate boundaries of the claimed design, and form no part thereof. The even-dash broken lines in the drawings illustrate portions of the heat-resistant tube for vertical heat treatment equipment that form no part of the claimed design. The cross-sectional views of FIGS. 5, and 10 show cross-hatched internal regions, which do not form part of the claimed design.

Claims

The ornamental design for a heat-resistant tube for vertical heat treatment equipment as shown and described.