Patent ID: 6845872

Claim:
System for lifting and moving an object from one point to another, said system comprising: a. a partially hollow post having a generally vertical axis; b. a weight disposed within said post and defining a post chamber thereunder, said post chamber being fillable with a pressurized fluid; c. a weight displacement system longitudinally and upwardly displacing the weight relative to said post, said weight displacement system controlling pressure inside said post chamber so as to selectively position said weight along said post; d. a transversal arm rotatably connected to said post for rotation about said vertical axis and including a proximal longitudinal end located near said post and a distal longitudinal end located away from said post; e. a cable having one end attached to said weight and the other end attached to said distal end of the transversal arm; f. a carriage connecting to said cable and mounting on said transversal arm; and g. an object attachment member connecting to said cable for attaching the object thereto; whereby the object is being lifted via said cable upon downward displacement of said weight relative to said post under gravity and being lowered upon upward displacement of said weight relative to said post under pressurized fluid within said post chamber.