Patent ID: 6691986
Filing Date: 2004-02-17
Classification: A63J,B66D

Abstract:
A lift assembly for vertically translating a load, the lift assembly comprising:(a) a housing having a cross sectional area along a vertical direction; (b) a drum connected to the housing and located within the housing, the drum rotatable about an axis, the drum translatable along the axis; (c) a first head block in the housing and spaced from the drum; (d) a second head block in the housing and spaced from the drum; (e) a first loft block in the housing and spaced from the first head block; (f) a second loft block external to the housing; (g) a first cable running along a first cable path, the first cable path extending from the drum about the first head block and the first loft block to vertically descend from the housing within the cross sectional area of the housing to the load; and (h) a second cable running along a second cable path, the second cable path extending from the drum about the second head block and the second loft block to vertically descend to the load.