Process and apparatus for manufacturing axi-symmetrical three-dimensional structures
US4621662A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Dec 20, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C53/8041
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for manufacturing an axi-symmetrical three-dimensional structure formed by superposed layers of fibrous material bonded together, said process comprising the following steps of:--bringing onto a rotary mandrel having the section of the structure to be manufactured, a tape of fibrous material whose width is several times less than the length of a generatrix of said structure:--winding the tape over the mandrel to form superposed layers, each layer being formed by successive turns of the tape of fibrous material, and--during winding, successively bonding the layers together by needling, said needling being effected at the place where the tape is superposed on the mandrel or on the previously formed layer. The invention also relates to an apparatus for carrying out said process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.