Post-press embossing of a consolidated man-made board
US4169748A · kind A · utility
7Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1978 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Feb 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1041
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A consolidated man-made board, such as hardboard, is "post-press" embossed with a contoured embossing plate at a pressure of at least about 1000 psi, at a temperature in the range of about 400.degree.-550.degree. F. and for a period of time sufficient to permanently re-shape the surface of the consolidated board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.