FIG. 1 is a perspective view of a U-design burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 2 is a perspective view of a U-design burner with safety box showing a heater head tilted at substantially 0 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 3 is a perspective view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially collapsed;
FIG. 4 is a front view of a U-designed burner with safety bar showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 5 is a first side view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 6 is a rear view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 7 is a second side view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 8 is a top view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 9 is a bottom view of a U-designed burner with safety box showing a heater head tilted at substantially 45 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 10 is a side view of a U-designed burner with safety box showing a heater head tilted at substantially 90 degrees, a safety bar protruded in front and a support assembly substantially extended;
FIG. 11 is a cross sectional view of line 11—11 in FIG. 8, showing an angle limiter where a groove and stop pin provides a 45 degrees of rotational freedom for the heater head; and,
FIG. 12 is a cross sectional view of line 11—11 in FIG. 8, showing an angle limiter where a groove and stop pin provides a 90 degrees of rotational freedom for the heater head.
