Hollow floor

Details Hollow floor Hollow floor

1985-07-10

1987-01-20

Perham, Alfred C.

Static structures (e.g., buildings)

Wall, ceiling, or floor designed for utilities

Load-bearing, prefabricated, abutting units with aligned...

52 2, 52508, 52577, 52741, 52323, 52382, 52383, 52408, 249 65, 264314, 264316, 264333, E04F 1502, E04B 548, E04G 1104

Patent

active

046371842

ABSTRACT:
A cavity floor is formed by placing on a structural floor bottom a flexible floor mold which has leg forming portions arranged in an array with generally planar portions extending between and surrounding the leg forming portions. A flowable substance is applied over the mold, which subsequently hardens to form an upper floor having a plurality of legs defined by the leg forming portions, with a cavity region therebetween. The planar portions of the flexible floor mold permit adjacent leg forming portions each separately to contact the floor bottom under the weight of the applied flowable substance, even if the floor bottom is uneven.

REFERENCES:
patent: 2792164 (1957-05-01), Canffiel
patent: 2956785 (1960-10-01), Riehl
patent: 3288998 (1966-11-01), Press, Jr.
patent: 3334458 (1967-08-01), Leemhuis
patent: 4076872 (1978-02-01), Lewicki et al.

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