Method of making pattern matrix having uniform backer thickness
US4474720A · kind A · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1983 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Jan 31, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24273
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tough, flexible, sheet-like matrix for a bas-relief pattern is made by casting a reinforced resin on a mold of the pattern and submerging a perforated plate in the liquid resin so that the plate is parallel to a substantially flat plane generated by the lowest points of the pattern. The matrix, exclusive of the peaks and valleys of the pattern, has a uniform thickness and has a multitude of studs integral with and dependent from the sheet. A porous matrix is useful for the wet-end texturing of fiberboard at the final suction press roll of a Fourdrinier fiberboard machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.