Static structures (e.g. – buildings) – Specified wear or friction-type traffic-carrying surface – Perforate structure having twisted element or particular...
Patent
1978-05-15
1980-04-22
Friedman, Carl D.
Static structures (e.g., buildings)
Specified wear or friction-type traffic-carrying surface
Perforate structure having twisted element or particular...
52581, B44D 508
Patent
active
041987950
ABSTRACT:
A modular flooring for installation on a subfloor and a method for producing it is disclosed. Each modular elongated section is substantially a U-shaped with the central part of the U being the weight bearing floor section.
A series of parallel slots is formed perpendicular to the elongated dimension, in the weight bearing surface of each floor section. The parallel slots each are formed having side members which are folded down so as to achieve a slot which eliminates the presence of fractured metal or cutting edges along the weight bearing portion of the floor section. On one of the supporting side walls of each floor section is punched a pair of slots. On the other supporting side wall of each floor section is punched a pair of locking tabs. The floor sections may be placed adjacent one another so that the tabs extending from the side wall of one floor section will interlock with the slots punched in the adjacent side wall of the next floor section. The interlocking tabs and slots result in easy assembly and positive spacing of arbitrary numbers of the floor sections.
REFERENCES:
patent: 765963 (1904-07-01), Evans
patent: 3215118 (1965-11-01), Behlen
patent: 3469509 (1969-09-01), Hutchinson
Barnidge, Inc.
Friedman Carl D.
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