Abstract: A portable, lightweight lift system employing one or more lift assemblies that counters effects of staging is disclosed. The lift system includes multiple lift assemblies, wherein each assembly may be connected to a lifting device such as a hydraulic or motorized jack. A lifting device comprises moving parts which are nested such that the difference in diameters of each of the moving parts is minimized. In one aspect, the lifting device is provided with an arrangement of seals such that, the working area of a smaller diameter tube is greater than the working area of a larger diameter tube causing the smaller tube to move before the larger tube.

Abstract: An improved multilevel parking system includes platforms having an angled cross section member disposed at an end thereof, which facilitates close nesting of, and lateral support for, the platforms. A drive-on ramp may be attached to a lower-most platform, facilitating movement of vehicles onto the platforms.

Abstract: A fall prevention assembly for vertical lift systems for storage and in particular for parking motor vehicles, the lift system comprising a frame extending upward from a base and at least one platform that is raised vertically within that frame responsive to a lift mechanism upon which a vehicle is parked, the fall prevention assembly comprising a series of metal bars of sufficient size and strength to resist bending attached to the base of the unit and extending upward through a series of bushings mounted strategically on each platform usually at the corners. These bushings can be designed with ridges or teeth inside. As long as the platform or platforms remain level and in proper alignment with the lifting system and within the frame the bushings simply move up and down along the metal bars. In the case of the failure of a lifting means the platform or platforms would become unlevel or tilt and the bushings would bind upon the metal bar.

Abstract: An improved multilevel parking system includes platforms having an angled cross section member disposed at an end thereof, which facilitates close nesting of, and lateral support for, the platforms. A drive-on ramp may be attached to a lower-most platform, facilitating movement of vehicles onto the platforms.

Abstract: A portable, lightweight lift system employing one or more lift assemblies that counters effects of staging is disclosed. The lift system includes multiple lift assemblies, wherein each assembly may be connected to a lifting device such as a hydraulic or motorized jack. A lifting device comprises moving parts which are nested such that the difference in diameters of each of the moving parts is minimized. In one aspect, the lifting device is provided with an arrangement of seals such that, the working area of a smaller diameter tube is greater than the working area of a larger diameter tube causing the smaller tube to move before the larger tube.

Abstract: A fall prevention assembly for vertical lift systems for storage and in particular for parking motor vehicles, the lift system comprising a frame extending upward from a base and at least one platform that is raised vertically within that frame responsive to a lift mechanism upon which a vehicle is parked, the fall prevention assembly comprising a series of metal bars of sufficient size and strength to resist bending attached to the base of the unit and extending upward through a series of bushings mounted strategically on each platform usually at the corners. These bushings can be designed with ridges or teeth inside. As long as the platform or platforms remain level and in proper alignment with the lifting system and within the frame the bushings simply move up and down along the metal bars. In the case of the failure of a lifting means the platform or platforms would become unlevel or tilt and the bushings would bind upon the metal bar.

Abstract: A vertical lift system for storage and in particular for parking motor vehicles comprising a multi-level frame comprising a structure extending upward from a base, and a lifting mechanism centrally positioned within the frame and in communication with each level, and a plurality of platforms positioned on each level about the lift mechanism the plurality of platforms for the receipt of a vehicle. The lift mechanism has capability to retrieve a selected vacant platform and transport it to an entrance/exit level, which can be located at any level within the structure, for positioning of a vehicle thereon, and subsequent transportation to its position on the frame.

Abstract: A fall prevention assembly for vertical lift systems for storage and in particular for parking motor vehicles, the lift system comprising a frame extending upward from a base and at least one platform that is raised vertically within that frame responsive to a lift mechanism upon which a vehicle is parked, the fall prevention assembly comprising a series of metal bars of sufficient size and strength to resist bending attached to the base of the unit and extending upward through a series of bushings mounted strategically on each platform usually at the corners. These bushings can be designed with ridges or teeth inside. As long as the platform or platforms remain level and in proper alignment with the lifting system and within the frame the bushings simply move up and down along the metal bars. In the case of the failure of a lifting means the platform or platforms would become unlevel or tilt and the bushings would bind upon the metal bar.

Abstract: A vertical lift system for storage and in particular for parking motor vehicles comprising a multi-level frame comprising structural means extending upward from a base, and a lifting means centrally positioned within the frame and in communication with each level, and a plurality of platforms positioned on each level about the lifting means, the plurality of platforms for the receipt of a vehicle. The lifting means has capability to retrieve a selected vacant platform and transport it to an entrance/exit level, which can be located at any level within the structure, for positioning of a vehicle thereon, and subsequent transportation to its position on the frame.