Extruded plastic rustication device for forming decorative concrete panels
US6279868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Oct 14, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G15/068
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Tilt-up concrete wall panels are poured on a horizontal concrete floor or forming surface and are provided with decorative recesses or rustications each formed by a device including an elongated clip or base member or channel of extruded semi-rigid plastics material and secured by fasteners to the forming surface. The base channel has upwardly projecting walls with inwardly projecting opposing teeth which releasably clip or engage outwardly projecting teeth on parallel spaced inner support walls of a generally flat rustication member of extruded semi-rigid plastics material. The rustication member is extruded with outwardly and downwardly projecting side or edge walls which have tapered lower edge portions engaging the forming surface to form precision recesses with beveled edge surfaces within the concrete panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.