초록 ▼

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 hard

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.

대표청구항 ▼

A hollow floor system, comprising: a floor bottom, a plastic mold emplaced atop said floor bottom, said mold having a plurality of integral feet and having planar portions of flexible sheet material extending between and interconnecting said feet, wherein each foot of the mold has continuous, closed

A hollow floor system, comprising: a floor bottom, a plastic mold emplaced atop said floor bottom, said mold having a plurality of integral feet and having planar portions of flexible sheet material extending between and interconnecting said feet, wherein each foot of the mold has continuous, closed side and bottom walls, each of said foot side walls having a smooth exterior, a flowable, hardenable substance poured into said mold, the weight of said substance bringing all of said feet into contact with said floor bottom, said planar portions of flexible sheet material permitting adjacent feet to yield under the weight of said substance to thereby enable each of said bottom walls of said adjacent feet to contact said floor bottom even in the event that said floor bottom is uneven, said substance when hardened thereby forming a hollow floor having a floor top supported by plural spaced load bearing legs within said mold feet, there being a hollow cavity between said floor bottom and said floor top in the regions between said legs.