发明名称 Lifting apparatus
摘要 Apparatus for supporting and lifting a load that includes a pair of spaced-apart, L-shaped forks. The horizontal leg of each fork contains a series of longitudinally-extended grooves formed in the load contacting top surface thereof. The grooves reduce the load contacting area of the top surfaces by about 40 percent thereby increasing the frictional forces acting between the load and the forks.
申请公布号 US5252023(A) 申请公布日期 1993.10.12
申请号 US19920833101 申请日期 1992.02.10
申请人 KELLY, KEVIN M. 发明人 KELLY, KEVIN M.
分类号 B66F9/12;(IPC1-7):B65G7/00 主分类号 B66F9/12
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