发明名称 |
APPARATUS FOR HEATING THERMAL SHRINKAGE TUBE |
摘要 |
<p>A thermal shrinkage tube 2 is heated for shrinking onto a splice portion 1 between optical fibres 3, for example, the heating being applied first to a central portion of the tube and then successively progressing towards end portions thereof, so that the tube 2 becomes closely adhered to the splice portion 1 along the whole of its length with no trapped air bubbles. Such heating is performed by a single heating device whose heating effect varies along the length of the tube 2, such that the greatest heating density occurs at a central portion 7 of the heating device. The heating device may comprise a wire heating element wound into a helical coil or bent into a saw-tooth shape, with the pitch of the windings or saw teeth decreasing from the central portion 7 to end portions 8 and 9 of the heating device. </p> |
申请公布号 |
HK104388(A) |
申请公布日期 |
1988.12.30 |
申请号 |
HK19880001043 |
申请日期 |
1988.12.22 |
申请人 |
SUMITO ELECTRIC INDUSTRIES LIMITED;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
KAIKII, TOSHIAKI;TODA, YUICHI;MATSUNO, KOICHIRO;USUI, YUICHI;MATSUMOTO, MICHITO |
分类号 |
B29C51/00;B29C61/00;B29C63/00;B29C63/42;B29C65/04;B29C65/68;G02B6/38;H05B3/42;(IPC1-7):B29C61/02 |
主分类号 |
B29C51/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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