Ground anchor
US4802317A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Oct 29, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/803
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plate or wing-type ground anchor for driving upright and into the ground to desired depth and pulled into flat anchoring position at the driven depth is provided with an extended cruciform shaped leg in advance of the plate wings to act as a star drill or chisel facilitating penetration of the ground. The plate anchor has an axial tubular body portion providing an elongated round bottom socket for mating with a round bottom drive rod for efficient transfer of impact energy from the rod to the anchor. A raised central rib on the tubular body portion has a sharp front cutting edge and a reduced thickness trailing end with a transverse hole therethrough. A pull member can include either a loop pivoted in the hole or a shackle straddling the reduced thickness end with a pin pivoted in the hole. Shoulders on the rib overlie the loop or shackle to divert earth therearound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.