Method for molding fiber aggregate
US6096249A · kind A · utility
118Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/5414
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention provides a method for producing a cushion structure having excellent quality in a short time by the final heat-molding of a fiber aggregate containing binder fibers by compression molding a fiber aggregate in multiple stages leaving the thermal shrinkage margin, passing hot gas through a by-pass channel on the side wall part of the molded article to eliminate the problem of insufficient heating of the side face of the molded article and detecting the completion of the filling of the fiber aggregate into the mold cavity by the pressure variation in the mold cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.