| 摘要 |
<p>A welding apparatus having specially designed louvers that are used to cover vent openings in the enclosure and contain the components of the welding apparatus. The louvers have a common side profile and have a configuration with a rear portion that is preferably horizontal and a front portion that angles downwardly, forming a front edge. An intermediate edge is formed by the front portion and the rear portion meeting at an angle. The intermediate edge is displaced away from a straight line drawn between the front edge and the rear edge: The configuration and spacing between adjacent louvers is designed such that a standard test probe cannot be inserted through the space between any two adjacent louvers. <IMAGE></p> |
