Platform leveling apparatus
US5082085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/044
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mobile aerial lift platform vehicle of the type having an upstanding pedestal and an elevating assembly mounted on the pedestal to raise and lower the work platform while maintaining the center of gravity of the platform within the base area defined by the wheels of the vehicle. The improvement is that the pedestal is pivotally mounted to the chassis of the vehicle for pivotal movement about a first axis extending fore and aft of the chassis and about a second axis extending from side to side of the chassis. Two hydraulic rams for provided, each of which will pivot the pedestal about one only of the axes, so that the pedestal may be leveled even through the vehicle is on unlevel ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.