发明名称 Pilfer proofing system for electric utility meter box
摘要 A pilfer proofing system and method for electric meter boxes having a meter base box, which carries a plug-in terminal block set and a meter box cover having an opening through which a plug-in-meter passes to engage contact jaws or sockets the terminal block set. An anchoring bar is secured to the meter stops and a conventional meter locking collar is secured to the cover and the bridge of the locking collar is secured to the anchoring bar. Metal extension adaptors are secured to the meter blades for entering into the contact jaws or sockets of the terminal block set and a conventional locking ring is utilized to lock the meter in place on the added meter collar thereby providing a substantial obstacle to easy pilfering of electricity. A safety device constituted by a handle, a flexible insulating sheet and a set of nonconductive blades is inserted in the socket blades of the terminal block set and retained therein by friction covering up the hot or live terminals of the terminal block set with the flexible insulating sheet, and it is removed by grasping the handle and removing same.
申请公布号 US4505530(A) 申请公布日期 1985.03.19
申请号 US19830526236 申请日期 1983.08.25
申请人 FENNEL, ROBERT B. 发明人 FENNEL, ROBERT B.
分类号 G01R11/04;G01R11/24;H01R13/443;(IPC1-7):H01R13/44 主分类号 G01R11/04
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