Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent
1981-04-16
1983-08-30
Friedman, Carl
Static structures (e.g., buildings)
Tensioned or flexed sheet facing
521261, 248 56, E04B 548
Patent
active
044009208
ABSTRACT:
In high-rise and mid-rise buildings wherein a concrete slab serves as a floor for one level and a ceiling for the level below it, it is necessary to secure vertical plumbing pipes to the slab wherein the plumbing pipes penetrate the slab through holes passing between the levels. An apparatus for securing these pipes includes a first and second member. Each of the members includes a base having a first and second end. Each of the members include one or more ribs attaching perpendicular to the base and extending between the ends of the base. The ribs on each of the members taper from the first end toward the second end of the base such that in side view each of the members is wedge shape in cross-section. The first member is located in the hole in the slab adjacent to the pipe by inserting from the top and the second member is located by so inserting through the bottom. This orients the members such that the large ends of their tapers are distal from each other. The pipe is fixed to the hole by moving the members toward one another such that each slides upon the taper of the other, respectively. This spreads the base of the first and second members such that one impinges against the side of the hole and the other impinges against the pipe. The members are fixed with respect to each other by suitable solvent welding techniques or the like to fixly maintain the pipe in its location within the hole in the slab.
REFERENCES:
patent: 246846 (1881-09-01), Wilde
patent: 1749135 (1930-03-01), Harter
patent: 2709571 (1955-05-01), Mafera
patent: 3572770 (1971-03-01), Kagi
patent: 4135335 (1979-01-01), Jensen
patent: 4262409 (1981-04-01), Madej
patent: 4264046 (1981-04-01), Nattel et al.
Boswell K. H.
Friedman Carl
O'Brian Edward D.
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