发明名称 SAFETY REEL
摘要 The invention relates to a lightweight portable reel for carrying blasting wire in which the end of the wire is electrically connected internal of the reel axle to a female jack into which a male plug is inserted to act as a shorting plug to prevent accidental firing and in which the other end of the wire is connected to the charge so that the wire need not be cut for connection to the blasting machine.
申请公布号 US3686448(A) 申请公布日期 1972.08.22
申请号 USD3686448 申请日期 1970.08.06
申请人 JEROME S. BROWER;DOUGLAS D. SMITH 发明人 JEROME S. BROWER;DOUGLAS D. SMITH
分类号 H02G11/02;(IPC1-7):H02G11/02 主分类号 H02G11/02
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