发明名称 Apparatus for increasing the load handling capability of support and manipulating equipment
摘要 A method and apparatus for increasing the load handling capacity of a system, having at least one fluid driven compensating means, incorporates a booster fluid actuated piston cylinder assembly interconnecting portions of the compensating system so as to substantially affect the force reacting characteristics thereof, whereby greater loads will produce lesser movement of the compensating means.
申请公布号 US4867418(A) 申请公布日期 1989.09.19
申请号 US19890296847 申请日期 1989.01.12
申请人 N.L. INDUSTRIES, INC. 发明人 DANIELS, CHARLES K.
分类号 B66C13/02;E21B19/09 主分类号 B66C13/02
代理机构 代理人
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