Writing pen twist mechanism

Description

FIG. 1 is a front isometric view of the writing pen twist mechanism.

FIG. 2 is a front view of the writing pen twist mechanism.

FIG. 3 is a back view of the writing pen twist mechanism.

FIG. 4 is a left side view of the writing pen twist mechanism.

FIG. 5 is a right side view of the writing pen twist mechanism.

FIG. 6 is a top view of the writing pen twist mechanism; and,

FIG. 7 is a bottom view of the writing pen twist mechanism.

The dash-dash broken lines shown in the drawings represent environmental structure and form no part of the claimed design. The dash-dot-dash broken lines represent the boundaries of the claimed design and form no part of the claimed design.

Claims

We claim the ornamental design for a writing pen twist mechanism, as shown and described.