Lightweight interior moulding
US6253510A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Nov 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/231
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a lightweight gypsum coated decorative moulding, for installation on an interior building surface. The moulding is lightweight and flexible enough to withstand handling without cracking of the finished gypsum surface of the moulding. A gypsum coated surface is advantageous in that: fire resistance is enhanced; the moulding can be painted and repaired easily; and liquid gypsum compound can be used as an adhesive to install the lightweight moulding without mechanical fasteners or other support. Bevel joints can be cut with standard carpentry tools and the joints can be secured with liquid gypsum compound as well. The use of liquid gypsum compound as an adhesive and finishing coat ensures accurate fitting and finishing of joints as well as ease of repair. The moulding has an elongate foam core of a resilient expanded polystyrene foam solid, having a cross-sectional profile proportionately smaller than the desired cross-sectional profile of the finished decorative moulding. The core has a rear surface, a decorative surface, and the rear surface includes at least one elongate mounting face for mounting the moulding to the interior building surface. Covering the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.