Torque fin anchor
US3969853A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Feb 3, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/685
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A torque fin ground anchor useful as a cable anchor or post anchor, has angled or tilted fins presenting large surface areas to the ground and radiating from a central pile which is preferably a hollow tube, with the fins preferably flat rectangles having tapered leading edges. When used as a torque fin cable anchor, a cable is attached to one of the fins through a hole located rearward of the mid point of the fin and near a lateral edge of the fin. The cable anchor is driven lengthwise into the ground, the cable is tensioned and the anchor tilted to a transverse underground maximum retention position. When used as a torque fin post anchor, it is also driven lengthwise into the ground, a post is telescoped into the tube portion and locked thereto by a clamp. The post may also be a hollow tube with a hole punched therein adjacent the clamp providing a weakened section, so that in the event of impact as by an automobile, the post will break away from the clamp and is available for re-use by merely loosening the clamp and removing the short post section from the anchor. The surface areas of the fins confront the ground in planes which will resist movement of the anchor under loads to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.