发明授权
- 专利标题: Extended safety cage for retractable gangway
- 专利标题(中): 伸缩式舷梯扩展安全笼
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申请号: US12574241申请日: 2009-10-06
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公开(公告)号: US08015647B2公开(公告)日: 2011-09-13
- 发明人: Ronald W. Bennett
- 申请人: Ronald W. Bennett
- 申请人地址: US SC Florence
- 专利权人: Aluminum Ladder Company
- 当前专利权人: Aluminum Ladder Company
- 当前专利权人地址: US SC Florence
- 代理机构: Nexsen Pruet, LLC
- 代理商 Amy Allen Hinson
- 主分类号: E04G1/22
- IPC分类号: E04G1/22
摘要:
An extended safety cage provides access to a plurality of hatches on the top of a mobile container. The cage is rotatably attached to the end of a gangway, which extends from and is rotatably attached to a platform. The platform carries a pair of braces that extend out in opposite directions and support the cage through spring-loaded lifting arms. The apparatus can include actuators, such as hydraulic or pneumatic actuators, that urge the gangway and cage downward when activated. Secondary braces ensure that the lifting arms and safety cage move in unison.
公开/授权文献
- US20110078864A1 EXTENDED SAFETY CAGE FOR RETRACTABLE GANGWAY 公开/授权日:2011-04-07
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