发明名称 WEATHERPROOF ELECTRICAL SWITCH ENCLOSURE
摘要 <p>WEATHERPROOF ELECTRICAL SWITCH Equipment designed to be drip-proof is not necessarily capable of withstanding exposure to weather. Equipment designed to be submersible may be unduly heavy and rugged when it is merely required to withstand exposure to the weather. The present electrical equipment enclosure is such to permit operation when exposed to the weather but at the same time is extremely light though rugged in its construction. Relatively light sheet steel is used to form the enclosure but by proper bending portions of the material a highly rigid structure is produced. At the same time some of the bends of the material are utilized to form a labyrinth seal between the door and the body of the enclosure.</p>
申请公布号 CA1045239(A) 申请公布日期 1978.12.26
申请号 CA19750225285 申请日期 1975.04.23
申请人 WESTINGHOUSE CANADA LIMITED 发明人 TANNENZAPF, WILLIAM;PATERSON, HAROLD;GRAHAM, IAN H.
分类号 H02B13/02;(IPC1-7):02B1/12 主分类号 H02B13/02
代理机构 代理人
主权项
地址