Pile lifting apparatus and method
US11124939B2 · kind B2 · utility
0Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2013 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D11/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for lifting and supporting a pile is provided. The apparatus includes a support structure coupled to the pile and a lifting device coupled to the support structure. Gripping plates of a lift head engage and lift the pile during extension of the lifting device. During retraction of the lifting device, gripping plates of a gravity vice engage the pile to support the pile in the lifted position. The extension and retraction of the lifting device is alternately repeated to lift the pile in steps to a desired height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.