发明名称 Manhole cover lifting tool - is curved with pivot point near end with tooth and two perpendicular handles, and is inserted in housing beneath cover
摘要 <p>The manhole cover is of the type where there is a gap between the frame and the edge of the cover. This gap extends underneath the base of the cover to form a housing for the lever. The lever has a curved section with a pivot towards one end which has at least one tooth for lifting the cover. The pivot rests on the upper edge of the rim of the frame while the teeth are inserted into the housing under the base of the cover. Two handles are provided, one being an extension of the lever, the other being fixed at right angles to the lever.</p>
申请公布号 FR2317423(A1) 申请公布日期 1977.02.04
申请号 FR19750022033 申请日期 1975.07.10
申请人 PONT A MOUSSON SA 发明人 JACQUES LUCIEN DEMOISSON ET PIERRE PAUL CAMILLE VIGNERON;VIGNERON PIERRE PAUL CAMILLE
分类号 B66F19/00;E02D29/14;(IPC1-7):02D29/12 主分类号 B66F19/00
代理机构 代理人
主权项
地址