发明授权
- 专利标题: Portable manhole cover remover
- 专利标题(中): 便携式井盖拆除器
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申请号: US10177259申请日: 2002-06-20
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公开(公告)号: US06945742B2公开(公告)日: 2005-09-20
- 发明人: Dave Roberts
- 申请人: Dave Roberts
- 代理机构: Angenehm Law Firm
- 代理商 N Paul Friederichs
- 主分类号: B62B1/00
- IPC分类号: B62B1/00 ; B62B1/14 ; B62B5/00 ; B62B5/06 ; B66C1/06 ; B66F1/00 ; B66F19/00 ; E02D29/14 ; B66C23/18
摘要:
A manhole cover remover, including an attachment; a support; a pivot arm having a proximal end hinged to the support and the pivot arm having a distal end; a connector joining the attachment to the distal end of the pivot arm; a winch joined to the distal end of the pivot arm; and a power source, the power source in operable communication with the winch and method of use including the steps of rotating a pivot arm down toward a manhole over; connecting the pivot arm to the manhole cover; and winching the pivot arm upward.
公开/授权文献
- US20030235487A1 Portable manhole cover remover 公开/授权日:2003-12-25
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