Architectural panel material for use as roofing material, material for external wall and the like purposes
US4163351A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1977 |
| Grant date | Aug 7, 1979 |
| Priority date | — |
| Expiry date | Nov 25, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D3/365
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The efficiency of work for constructing the roof, the external walls and the like of a house will be greatly improved if the architectural material is standardized and designed to minimize the processing which must be made at the site. To this end, there is provided a specific profile of an architectural panel material, i.e. a substantially inverted T-shaped profile mainly consisting of a main body section having an inclined area, and an overlapping head section having an overlapping area continuous with and projecting toward the upper side from the inclined area. Remarkable effects, in addition to above stated advantages, are derived from this profile, such as preventing infiltration of rainwater into the back side of the panel, improved mechanical strength, and an attractive three-dimensional appearance of the finished roof and external wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.