| 摘要 |
<p>A pop-up thermometer (10) having an elongate housing (11) formed with a longitudinally extending bore (19), first and second internal regions (24,25), a first internal cavity (26) and a second internal cavity (27). An indicator rod (36) slidably disposed in the bore (19) includes a front end portion (37), a first stem stretch (38) extending from the front end portion (37) and terminating in a raised portion (39), a second stem stretch (40) extending from the raised portion (39) and a rear end portion (47) spaced from the front end portion (37). The front end portion (37) and the first stem stretch (38) are positioned in the first internal cavity (26) while the second stem stretch (40) is positioned in the second internal cavity (27). The first stem stretch (38) has a lesser cross-sectional diameter than the front end portion (37) of the rod (36). A fusible material (59) substantially fills the first internal cavity (26), engaging the front end portion (37) and at least a portion of the first stem stretch (38) to retain the indicator rod (36) in the housing (11).</p> |
