Method of dispensing chopped reinforcement strand using a vortex nozzle
US6029897A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of dispensing a reinforcement strand includes the steps of chopping the reinforcement strand into discrete reinforcement fibers, directing the discrete reinforcement fibers into a dispensing nozzle so that the discrete reinforcement fibers travel along a path extending generally along a longitudinal axis of the nozzle, introducing a fluid into the nozzle in a circumferential direction with respect to the longitudinal axis, thereby creating a vortex of the fluid surrounding the discrete reinforcement fibers in the nozzle, dispensing the discrete length reinforcement fibers from the nozzle as a flow, and controlling the flow of fibers dispensed from the nozzle by controlling the fluid introduced into the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.