| 摘要 |
<p>Heating cost divider for measurement of heat use from heating bodies has two housing parts (2, 3) that are joined together by a lead seal (4). The seal is broken to separate the parts. The seal has a head (8) and a shaft (12) together with a locking mechanism (9) for holding it in place. The seal head has an open gripping part which incorporates a weak point (17) where the seal will break and destroy the seal when the seal head is drawn out. An Independent claim is made for a lead seal for joining together two housing parts of a heating cost divider.</p> |
