Patent ID: 6561367
Filing Date: 2003-05-13
Classification: B66C,Y10S

Abstract:
A portable hoist comprising:a base having a front and a back, said base comprising a transverse base member, a first leg and a second leg wherein said first leg and said second leg are spaced from each other and attached to said base member such that said first leg and said second leg form the front of said base; a tail assembly attached to said base member, said tail assembly having at least a stabilizing leg at the back of said base; an adjustable mast secured to said base member and extending orthogonally upward therefrom, said mast having at least a lower mast, an upper mast in slidable engagement with said lower mast and a locking mechanism for fixing the height of said adjustable mast; a transverse lifting beam extending horizontally from the top of said mast, said beam having a first roller and a second roller attached to said beam, each roller being rotatably attached adjacent to an end of said beam; and a lifting system having a winching mechanism attached to said hoist adjacent said lower mast and said base wherein said winching mechanism swivels about an axis parallel to the vertical axis of said adjustable mast and a lifting cable extending upwardly from said winching mechanism to said first roller, said second roller and downwardly for a distance ending in a free end, said lifting cable being retractably engaged with said winching mechanism.