Title: Architectural panel material for use as roofing material, material for external wall and the like purposes

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Ishikawa, Takashi

Application Number: 854952
Filing Date: 1977-11-25
Publication_date: 1979-08-07
Assignee:
Primary Class(es): 52/542 52/556
Other Classes:
US Patent Ref:

1911141	May, 1933	Fischer	52/542.
2450562	Oct, 1948	Robinson et al.	52/556.
2685852	Aug, 1954	Godel	52/556.
2811118	Oct, 1957	Ball	52/518.
3121649	Feb, 1964	Oliver	52/746.
3848383	Nov, 1974	Wilson et al.	52/542.
3875715	Apr, 1975	Martin et al.	52/556.

Other Refs:
Primary Examiner: Bell, J. Karl
Assistant Examiner:
Attorney: Blanchard, Flynn, Thiel, Boutell & Tanis