Apparatus and method for reinforcing a stationary vertical column
US5680739A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Aug 1, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G2023/0251
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for reinforcing an external surface of a stationary vertical column with a reinforcing material includes a supply of a reinforcing material and a guide that directs the reinforcing material from the supply onto the stationary vertical column. A winding device moves the guide means in a spiral pattern relative to the stationary vertical column, to wind spiral layers of the reinforcing material onto the vertical column. The winding device is provided as a multipart structure that may be assembled around the vertical column and later disassembled to permit removal from around the vertical column. In one approach, the reinforcing material is tows of a curable composite material that are wound onto the vertical column and later cured in place after the winding device is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.