Patent ID: 8043041
Filing Date: 2011-10-25
Classification: B66F,E02D

Abstract:
1. A lifting assembly arranged to lift an object which has a width dimension and is at least partially surrounded by a base surface which has a substantial horizontal alignment component, such as a manhole cover surrounded by a paved or ground surface, said assembly comprising: a) a base support assembly comprising: b) a lifting mechanism mounted to the base support assembly and comprising a lift connection to engage said object and an actuating means to lift said object, said lift connection comprising a pair of collet fingers adapted to be positioned in a lift opening of said object, and expander to expand collet fingers outwardly to come into gripping engagement with the surface of said lift opening, whereby said lifting assembly can be positioned over said object with the pivot support being on one side of said object and the mobile support being on an opposite side of said object, so that said lifting mechanism is able to raise said object, and said lifting assembly can be moved laterally so as to move said object.