Method and apparatus for making filament wound cylindrical structres
US4448624A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1983 |
| Grant date | May 15, 1984 |
| Priority date | — |
| Expiry date | Mar 11, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C53/824
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method is disclosed for the fabrication of cylindrical structures (26) by filament winding of resin impregnated filaments around a novel cylindrical mandrel assembly (10) whereby the mandrel assembly (10) and fabricated cylindrical structure (26) are easily separated after curing of the resin impregnated materials. The invention utilizes an inner, hollow cylindrical mandrel member (11) onto which a metal cable (12) is wound over afterwhich segmented outer mandrel sections (13) are connected to the inner mandrel member by fastener devices (20) installed from the inner side of the inner mandrel member (14). The resin impregnated filament is then wound over the outer mandrel segments (13) and cured in a conventional manner. After curing, the fasteners (20) are removed from the inner side of the inner mandrel (11), and the cable (12) is removed by pulling it from one end of the mandrel assembly (10). With the cable (12) removed, clearance is provided so that the inner mandrel (11) can be removed from the outer segmented mandrel (13), and once the inner mandrel (11) is removed, the outer, segmented mandrel (13) is disassembled and removed inwardly from contact with the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.