Invention Grant
US07878482B2 Jack stand and jack combination and method of elevating a load 有权
千斤顶架和千斤顶组合和提升负载的方法

Jack stand and jack combination and method of elevating a load
Abstract:
A jacking system is disclosed in which a hydraulic jack, having a raisable piston, is used, in combination with a jack stand having a raisable support column, to raise a load. In a preferred embodiment, the support column has two components that may telescope into each other and that may be held in fixed position by two ratchet mechanisms. The jack stand is configured so that, when the hydraulic jack is positioned alongside the jack stand, the piston of the hydraulic jack is able to interact with and raise the support column along with the load.
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