Disposable layout form liner for structures
US5900180A · kind A · utility
Inventors
Key dates
| Filing date | Aug 3, 1995 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Aug 3, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B19/0061
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A disposable object form line for use in horizontal casting of building panels from settable material in which at least one side has an exposed face of embedded objects. The object form liner is comprised of a thin support sheet having an adhesive coating on one side. A closed cell plastic grid having ridges which define openings sized to fit the outer perimeter of the intended objects is provided. The grid is adhered to the adhesive coating on the support sheet. Retarder strips may be inserted in each opening to prevent contamination of the face of the object during the pouring process. The form liner is placed in the bottom of a horizontal mold. The objects, such as bricks, are positioned in the openings provided in the layout form liner and the settable material is poured into the mold to form a construction panel. After setting, the panel and disposable form liner are removed from the mold and the liner is stripped from the panel to expose the objects embedded in the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.