Device and method for sheathing a ply of threads
US8197242B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2011 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2030/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for continuously sheathing a ply of threads, said ply being formed by an array of approximately mutually parallel threads. The device includes a thread guide, a coating chamber into which a first feed channel and a second feed channel run, which are independent of each other, connected to a first feed device and to a second feed device respectively and capable of delivering a first material and a second material under pressure and with a defined flow rate, and the outlets of which channels are placed above and below the plane of the ply of threads, and an output die. Pressure-measuring device, connected to a controller for controlling the pressure of each of the feed devices, are placed in the coating chamber facing and in line with each other, on either side of the plane of the ply and in the immediate vicinity of the outlet for the feed channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.