Ground anchor and apparatus to set and remove same
US4756129A · kind A · utility
10Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Dec 21, 1982 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Dec 21, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2200/1671
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ground anchor has an auger fluke defined by a lower leading and upper trailing beveled cutting edges, the shape of the edges being at a non-radial or oblique angle, the disc being vertically separated in the shape of a helix and attached to an axial anchor rod. The rod is set in the ground with a socket tool that is coaxially positioned over the rod. The tool includes a helical slot engagable with the helix of the anchor fluke to rotate the anchor into the ground, to pull test the anchor, and in one embodiment capable to reverse rotate the socket tool for its removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.