Wall construction
US4704837A · kind A · utility
42Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1986 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Aug 15, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/725
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wall construction wherein a sheet of paper covered gypsum wallboard has at least one V-shaped groove formed part way through the thickness of the wallboard, and a sheet of rigid bendable sheet metal, conforming to one surface of the wallboard, along the groove area, is laminated to the wallboard whereby folding of the wallboard and sheet metal, along the groove, closing the groove, results in a folded section which remains firmly folded by reason of the folded rigid sheet metal laminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.