Method and apparatus for production of plaster plates having 4 tapered edges
US7431783B2 · kind B2 · utility
1Cited by
37References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1737
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing plaster plates (44), according to which two fine cardboard-covered sheets of paper (8, 9) enclose a plaster-based hydraulic binder (10) in a shaping device (13), creating a composite band (45) that is hardened on one or several hardening bands (14, 15), the edges of said hardening bands (14, 15) being provided with two bands used for tapering in the horizontal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.