Methods and apparatuses for compacting soil and granular materials
US9702107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and apparatuses for compacting soil and granular materials. The soil compaction apparatuses include an arrangement of diametric expansion elements that, in their expanded state, form a larger compaction surface. A compaction chamber can be provided with diametric restriction elements and a flow-through passage in the upper portion of the chamber exterior of a drive shaft. The diametric expansion or restriction elements can be fabricated from, for example, individual chains, cables, or wire rope, or a lattice of vertically and horizontally connected chains, cables, or wire rope. The soil compaction apparatus can be any one of closed-ended driving shafts, open-ended driving shafts, flow-through passages, no flow-through passages, removable rings for holding the diametric expansion/restriction elements, and any combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.