发明名称 Double locking snap hook
摘要 A double locking snap hook comprising a shank, a spring biased latch member and a spring biased locking means, the latch member and locking means being biased by two separate screens. One end of the shank defines a hook portion, and the latch member is biased toward a latched position for restraining straps, ropes, etc. within the hook portion. The locking means is biased toward a position which requires that the locking means be deactivated before the latch member may be unlatched or opened.
申请公布号 US4977647(A) 申请公布日期 1990.12.18
申请号 US19890427716 申请日期 1989.10.27
申请人 D.B. INDUSTRIES, INC. 发明人 CASEBOLT, SCOTT C.
分类号 B66C1/36;F16B45/02 主分类号 B66C1/36
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