Invention Grant
- Patent Title: Hydraulic crane-mounted remotely-controlled lifting device
- Patent Title (中): 液压起重机安装的远程控制提升装置
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Application No.: US12223314Application Date: 2007-02-01
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Publication No.: US07934757B2Publication Date: 2011-05-03
- Inventor: Tierson K. Boutte
- Applicant: Tierson K. Boutte
- Agent Richard C. Litman
- International Application: PCT/US2007/002691 WO 20070201
- International Announcement: WO2007/092236 WO 20070816
- Main IPC: B66C1/42
- IPC: B66C1/42

Abstract:
The hydraulic crane-mounted remotely-controlled lifting device (10) includes a housing (26) having hydraulically-operated, grasping members (16), (44, 46) that will permit the removal of limbs from the trunk of the tree without having a climber to move out on each limb to secure the lifting device (10). The device (10) can be easily attached and detached from the end of the crane's cable (12) and requires no other physical connection to the crane other than the cable. The device (10) is self-contained in that all hydraulic mechanisms (30, 32), including an electric power source (34) for operating the hydraulic mechanisms, are enclosed in the housing (26). A wireless control device (22) permits the crane operator to position the pair of grasping members around the designated tree limb from a remote position.
Public/Granted literature
- US20090065093A1 Hydraulic Crane-Mounted Remotely-Controlled Lifting Device Public/Granted day:2009-03-12
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