| 摘要 |
<p>The device comprises four components, namely an external casing (1), an inner part (2), a pair of contact elements (3) and (3'), and a jack plug (4), with casing (1) and inner part (2) being provided with complementary means of retention, and inner part (2) being provided with means for mounting and securing contact elements (3) and (3'), in which are defined pairs of salient projections (17) and (18) which allow connection of jack plug (4) in two positions of rotation, at 90 DEG to each other, and prevent connection in an intermediate position as the inner ends of the pins of jack plug (4) are left opposite a segment (19) recessed with respect to contact elements (3) and (3'). The device is meant to heat the wick which emerges from a vessel containing an active substance to cause the evaporation of the substance, which by capillary action reaches the emerging segment of the wick, with the vessel retained on the lower end of the device unit by a ring (26) provided for such purpose on inner part (2). <IMAGE></p> |
