Patent · US Active

Hydraulic elevation apparatus and method

US7934889B2 · kind B2 · utility

0Cited by
20References
10Claims
0Family size

Inventor

Key dates

Filing dateDec 29, 2009
Grant dateMay 3, 2011
Priority date—
Expiry dateDec 29, 2029

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21F13/00
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

In various embodiments, a method for transporting objects within a multiple chamber framework may include loading objects into a transport container, elevating the container in a delivery chamber and lowering the container in a return chamber. Preferably, fluid elevation is employed to elevate object transport containers and their contents within the delivery chamber. Such methods may be utilized in vertical or incline lifting environments, and an auxiliary 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 auxiliary chamber may be laterally disposed to the delivery chamber or the return chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.