发明名称 Synthetic boomstick coupling system
摘要 A system for coupling synthetic boomsticks having a pair of spaced parallel substantially horizontal coupling flanges projecting axially therefrom. The flanges form a loop receiving space therebetween and a coupling pin passes through this space between the flanges to lock a loop therein. The coupling pin is lockable in closed position to hold loop in place. A coupling pin and slot prevents rotation of the coupling pin except when the coupling pin is in retracted open position.
申请公布号 US5713698(A) 申请公布日期 1998.02.03
申请号 US19960629653 申请日期 1996.04.09
申请人 MACMILLAN BLOEDEL LIMITED;CANADIAN BOOMSTICK COMPANY LTD. 发明人 WORSLEY, RALPH STANLEY
分类号 E02B15/04;E02B15/06;(IPC1-7):E02B15/04 主分类号 E02B15/04
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