Hydraulic elevation apparatus and method
US7661910B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 18, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jan 29, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F13/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The hydraulic elevation apparatus and method of the present invention incorporate a multiple chamber framework internally disposed preferably within at least one single shaft structure, which facilitates movement of object transport containers within the multiple chamber framework. Preferably, fluid elevation is employed to elevate object transport containers and their contents within the multiple chamber framework. Each single shaft structure may be constructed from an existing rehabilitated shaft, or a newly drilled shaft. The present invention may be utilized in vertical or incline lifting environments, and an auxiliary hoist chamber may be incorporated into the multiple chamber framework for use as an alternative to, or in conjunction with, elevating objects by employing fluid elevation. The present invention may be employed in a variety of heavy lifting scenarios, including underground mining or in above ground lifting environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.