System and method for manufacturing cementitious boards with on-line board measurement
US9964942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of a system and a method for continuously measuring cementitious board during the continuous manufacture thereof can be used in connection with the manufacture of various cementitious products, including gypsum wallboard, for example. Embodiments of a system and a method for continuously measuring cementitious board during its continuous manufacture can be used online in a continuous manufacturing process to effectively determine the degree to which cementitious slurry has set (e.g., expressed as percent hydration) at a predetermined location, such as, near a cutting station, for example. A height measuring system can be used to determine the relative amount the cementitious board sags as it passes over an unsupported span disposed between the forming station and the cutting station and to correlate the measured sag distance with a value of percent hydration of the cementitious slurry of that particular portion of the cementitious board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.