Fiber reinforced plastic drilling anchor
US8172484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/0006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a fiber-reinforced plastic drilling anchor comprising an axial bore that runs along the entire length thereof, fibers which extend in the longitudinal direction thereof, and fibers that extend at an angle to the longitudinal direction thereof. A first layer of fibers that extend at an angle to the longitudinal direction of the drilling anchor is surrounded by a second layer of fibers extending in the longitudinal direction of the drilling anchor, and the second layer of fibers is surrounded by a third layer of fibers extending at an angle to the longitudinal direction of the drilling anchor. The inventive drilling anchor further comprises a thread which extends along the entire length thereof and is molded into at least one outer fiber layer of the drilling anchor. The invention also relates to a method for producing such a drilling anchor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.