Patent ID: 6425463
Filing Date: 2002-07-30
Classification: B66B,B66F,E04F

Abstract:
A lifting device for transporting items of personal property between one floor and another floor in a building having at least two floors, said building also having a lowermost floor of said building being served by said lifting device and an uppermost floor of said building being served by said lifting device, comprising:a. an outer frame having a floor frame portion and a ceiling frame portion provided on each of said at least two floors including the lowermost floor and the uppermost floor of said building, said floor frame portion and said ceiling frame portion on each floor being interconnected a plurality of wall frame members, said wall frame members being adjustable in height to facilitate installation of the lifting device in said building; b. a pair of spaced apart guide rails attached to said outer frame and extending between the floor of the lowermost floor and the ceiling of the uppermost floor, said guide rails being vertically positioned and adjustable in height to facilitate installation of the lifting device in said building; c. a lift container having a top wall, a bottom wall and at least one side wall, each of said at least one side walls having guide members positioned thereon to guide the lift container along said guide rails and to allow the lift container to move vertically along said guide rails; and d. drive means comprising a motorized drive pulley, a plurality of idler pulleys and drive belt means, said drive belt means connected by a first connection means at one end to said top wall of said lifting container and connected by a second connection means at an opposite end to the bottom wall of said lifting container, said drive belt means in contact with said drive pulley and said idler pulleys and being powered by said drive pulley whereby operating the drive pulley in a first direction causes the lift container to move vertically upward and operating said drive pulley in a second direction causes the lift container to move vertically downward to desired locations between the lowermost floor and the uppermost floor.