发明名称 Useful improvements in utility street cover removal tools and methods
摘要 This invention relates to devices for removing covers for utility installations, such as water meter shut-offs, that are located under streets, sidewalks, and the like. Such covers provide accessible protection for the utility devices that they cover. Embodiments of this invention include a tubular shaft, and a hammer rod which is slidably insertable within the shaft and has a combination chisel point - claw hook at its the lower end for penetrating through pavement material, dirt and the like that may have become deposited in the aperture of the cover, to enable the claw hook to latch beneath the cover and pull on one side of the cover to lift it upward. Through impact on the top of the shaft by the hammer arm via corresponding impact surface, the chisel point on the shaft may be hammered downward to cause it to penetrate into the aperture. The shaft has a hammer rod receptacle pivotally mounted on its side at its lower end into which the hammer arm may be slid following removal from within the shaft after first one and then the other of the apertures in a given cover have been penetrated sufficiently, to form, with the shaft, a long armed claw device with which to lift the cover from its receptacle.
申请公布号 US5004282(A) 申请公布日期 1991.04.02
申请号 US19890454895 申请日期 1989.12.22
申请人 PERRY EQUIPMENT CORPORATION 发明人 PERRY, SCOTT G.
分类号 B66F19/00 主分类号 B66F19/00
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