Moulded pulp fibre product forming system, apparatus, and process
US11970823B2 · kind B2 · utility
0Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2020 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Jul 28, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21J7/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for forming a pre-form for a moulded pulp fibre product involves providing a porous mould that has one or more pre-form mould portions that each have an outer surface corresponding to a surface of the pre-form. Pulp fibre slurry is discharged from an outlet; each pre-form mould portion is coated with discharged pulp fibre slurry by moving the porous mould relative to the outlet. Thus, a slurry deposit for the pre-form is formed on the outer surfaces of the pre-form mould portions. Fluid from the slurry deposit is extracted through the porous mould to form the pre-form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.