Reinforcement methods utilizing high tensile strength composite bands
US5683530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249934
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Axially extending structures having internal forces directed radially outward therefrom may be reinforced by installing bands around the structures. The bands consist of a plurality of elastic convolutions of a composite material which assume a coiled configuration in a relaxed condition. The composite material includes a multiplicity of continuous, high tensile strength filaments encapsulated in a resin matrix and extending codirectionally with one another through the resin matrix. The band is installed around the structure by deflecting portions of the band to an uncoiled configuration and then wrapping these portions of the band around the structure. Adhesive may be used to secure the band tightly around the structure. Particularly useful applications for the composite bands are for reinforcing gas and liquid transmission pipelines and concrete bridge support columns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.