Embedment device for fiber reinforced structural cementitious panel production
US7794221B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C5/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An embedment device for use in a cementitious panel production line such as a structural cementitious panel (SCP) production line wherein hydraulic cement slurry is transported on a moving web on a support frame, and chopped fibers are deposited upon the slurry. The device includes as one embodiment, a wire grid structure mounted on a reciprocating shaft driven by a piston which moves the grid down into the slurry and then up out of the slurry transverse of the travel of the slurry layer on the web. An alternative embodiment device includes a grid cell structure with thin walls extending upward from the grid surface in contact with the slurry that is moved up and down in a reciprocating motion transverse of the travel of the slurry layer on the web. The intermeshing relationship of the grid cell with the fiber and slurry enhances embedment of the fibers into the slurry and also prevents clogging of the device by fibers and prematurely set slurry particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.