Energy absorber
US7104371B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2001 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | May 16, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/329
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An energy absorber comprises a helically coiled stores of at least partially yielding material that is drawn over a roller, or two rollers on perpendicular rotational axes, and securely fixed to a base that is attached to fragile structure such as a roof so that when an external force of sufficient size is applied to the roller or rollers through a connecting attachment eye the coil together with roller or rollers moves away from the attachment to the base whilst the coiled material is deployed over the roller or rollers. The absorber may be housed in a casing that is fixed to the base such that the strength of the fixing to the base is sufficient to withstand a pre-determined load after which the fixing fails and the housing moves with the coiled store providing protection for both the coiled store and fragile structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.