发明授权
- 专利标题： Crane apparatus having hydraulic control system
- 专利标题（中）： 起重设备具有液压控制系统
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申请号： US747258申请日： 1985-06-21
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公开(公告)号： US4667834A公开(公告)日： 1987-05-26
- 发明人: William P. Lanigan , John J. Lanigan, Jr. , Myron Glickman
- 申请人： William P. Lanigan , John J. Lanigan, Jr. , Myron Glickman
- 申请人地址： IL Hazel Crest
- 专利权人： Mi-Jack Products, Inc.
- 当前专利权人： Mi-Jack Products, Inc.
- 当前专利权人地址： IL Hazel Crest
- 主分类号： B66C13/20
- IPC分类号： B66C13/20 ; B65G63/00 ; B66C13/18 ; B66C19/00 ; F16H61/44 ; B66C13/12
摘要：
A crane apparatus having a hydraulic system for controlling the operation of the hoist and bridge, and gantry drive functions of the equipment. The hoist, bridge and drive components are driven by an AC motor that is powered by an AC generator. The AC motor in turn operates a variable displacement hydraulic pump which is variable from zero to a maximum flow rate in either direction for infinite speed control. The output of the hydraulic pumps is directed to respective hydraulic motors which drive the particular function being controlled.
公开/授权文献
- USD340524S Surgical wrap with arm splint 公开/授权日：1993-10-19