Anchor and method for constructing same
US4069677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Jun 16, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/74
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earth anchor includes a steel tension member, or members, sheath encased and embedded in a hardenable material such as mortar grout poured in a bore hole prepared in the ground. Lubricant is applied to the surfaces of the steel tension members before the members are placed within the interior sheaths. Gripping metal pieces are secured to the end portions of the steel tension members in abutment with a pressure bearing plate or plates, also secured to the end portions of the steel tension members. The gripping metal pieces are designed to be sripped from the steel tension end portion member with a force exceeding the predetermined work load of the steel tension members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.