Static structures (e.g. – buildings) – Three-way corner construction – Barrier resting on top of vertical structures; e.g. – walls
Patent
1989-10-04
1991-01-08
Murtagh, John E.
Static structures (e.g., buildings)
Three-way corner construction
Barrier resting on top of vertical structures; e.g., walls
521266, E04B 543
Patent
active
049825399
ABSTRACT:
It is known to lay out the floorboards of raised floors on grid girders, which are attached to the cover plates of legs of the raised floor. The grid girders are either inserted into suitable recesses in the cover plates where they may be made secure in these recesses by means of tongues which engage in boreholes in the cover plates, or else under more stringent specifications they are screwed into the reinforcement of the raised floor with the cover plates. Until this time, for the two variations of assembly, two different types of girders have also been produced. Both variations of assembly can be attained by use of the grid girder according to the present invention. For this purpose, the side walls of the grid girder are provided with beveled ends in such a manner that the grid girder, when viewed from the side, has the shape of a parallelogram. At the ends of both of the other walls of the grid girder are provided in turn tongues or oblong apertures for the passage of fastening screws. Tongues are intended for the loose engagement of the grid girder in the boreholes of cover plates, while with the other variation of assembly the fastening screws are fed through oblong apertures and are twisted or tapped into the boreholes.
REFERENCES:
patent: 2467558 (1949-04-01), Kapnek
patent: 2623246 (1952-12-01), Pestak
patent: 3102306 (1963-09-01), Hutchinson
patent: 3616584 (1971-11-01), Sartori
patent: 4085557 (1978-04-01), Tharp
patent: 4277923 (1981-07-01), Rebentisch
patent: 4685258 (1987-08-01), Av-Zuk
Mero-Werke
Murtagh John E.
Presta Frank P.
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