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US 4,637,184 AGranted
Hollow floor
OwnerWolfgang Radtke, Gyorgy Borbely +2inventors
InventorsWolfgang Radtke, Gyorgy Borbely, Sebald Pallhorn, Erich Hollfritsch
Life of this patent
Estimating the term…
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.
Claims22
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.
1 more element
A hollow floor comprising:
- a floor base;
- a mold placed above said floor base, said mold including a rectilinear array of downward facing concave projections and a flexible sheet material extending between and interconnecting said projections;
- a self-leveling, hardenable compound covering said mold and filling said concave projections,
- said flexible sheet material yielding under the weight of said self-leveling compound to thereby enable each of said projections to contact said floor base even in the event that said floor base is uneven.
1 more element
A process for the production of a hollow floor on a floor bottom, said process comprising the steps of:
- placing on the floor bottom a formwork of a profiled flexible sheet material having a plurality of mutually spaced apart feet forms arranged in an array with generally planar portions of said flexible sheet material extending between and surrounding said feet forms, said formwork substantially adapting itself to the contour of the floor bottom, each foot form having continuous, closed side walls and a bottom wall, and each of said foot form side walls having a smooth exterior and extending from adjacent the plane of said flexible sheet to near the floor bottom and being generally vertical near said floor bottom;
- filling and covering the formwork with a low viscous, flowable, self-solidifying composition which, upon its solidification, forms a floor plate with load-bearing feet within said feet forms, there being cavities between the load bearing feet through which conduits can be inserted,
- said flexible sheet material yielding under the weight of said composition to thereby enable each of said bottom walls of said feet forms to contact said floor bottom even in the event that said floor bottom is uneven.
A process for the production of a hollow floor on a smooth floor bottom comprising the steps of:
- placing a formwork of a profiled flexible thermoplastic synthetic foil having feet forms on the floor bottom, which adapts itself substantially to the contour of the floor bottom, each foot form having continuous, closed side and bottom walls, each of said foot side walls having a smooth exterior and extending substantially vertically near the floor bottom;
- coating the formwork with a plastic composition which, upon its solidification, forms a floor top, load-bearing feet and hollow spaces between the load bearing feet;
- and
- after the solidification of the plastic composition, shrinking the plastic foil by heating.
1 more element
A process for the production of a hollow floor on a smooth floor bottom comprising the steps of:
- placing a formwork of a profiled flexible sheet material having foot forms on the floor bottom, which adapts itself substantially to the contour of the floor bottom, each foot form having continuous, closed side and bottom walls, and each of said foot side walls having a smooth exterior and extending substantially vertically near the floor bottom;
- coating the formwork with a substantially self-leveling plastic composition which, upon its solidification, forms a floor top, load-bearing feet and hollow spaces between the load bearing feet;
- forming the formwork by placing two foils sealingly connected regionwise on the floor bottom, filling the foils with a fluid to form a cushion;
- and
- evacuating the cushion upon the solidification of the plastic composition.
2 more elements
A process for forming a hollow floor on a floor bottom comprising the steps of:
- placing a flexible floor mold on the floor bottom, the mold having a plurality of downwardly extending leg forming portions to engage the floor bottom, said leg forming portions having continuous, closed side and bottom walls, each of said portion side walls having a smooth exterior and extending substantially vertically onto the floor bottom at the floor bottom;
- and
- applying a flowable substance over the mold, which subsequently hardens to form an upper floor having a plurality of legs and a plurality of spaces between the lower floor and the upper floor when the substance hardens;
- wherein the floor mold is an inflatable floor mold having a lower web on the floor bottom and an upper web connected to the lower web at spaced intervals to form leg feet forming spaces when inflated, said process further comprising the steps of:
- inflating the mold with a fluid to form the leg forming spaces;
- applying a flowable substance over the mold to form an upper floor having a plurality of legs resting on the floor bottom when the substance hardens;
- and
- deflating the mold after the substance hardens to form a plurality of spaces between the legs.
5 more elements
A process for forming a cavity floor on a floor bottom comprising the steps of:
- placing a flexible floor mold on the floor bottom, the mold having a plurality of mutually spaced downwardly extending leg forming portions to engage the floor bottom, said leg forming portions arranged in an array with generally planar portions of said flexible floor mold extending between and surrounding said leg forming portions, said leg forming portions having continuous, closed side and bottom walls, each of said portion side walls having a smooth exterior extending from said planar portions to said floor bottom;
- and
- applying a flowable substance over the mold, which subsequently hardens to form an upper floor having a plurality of legs defined by said array of leg forming portions and thereby forming an array of continuous cavities between the lower floor and the upper floor when the substance hardens,
- said planar portions of said flexible floor mold permitting adjacent leg forming portions each separately to contact the floor bottom under the weight of said applied substance, even if said floor bottom is uneven.
1 more element
A process for forming a cavity floor on a floor bottom, comprising the steps of:
- placing a floor mold on the floor bottom, said mold having a generally flexible planar portion depending downwardly from which are a plurality of leg forming portions, said leg forming portions being mutually separated with regions of said flexible planar portion completely surrounding each, said leg forming portions each having a continuous sidewall disposed and each having a generally planar base, said leg forming portions being arranged in an array,
- applying a flowable substance over the mold and into each of said leg forming portions, said flexible planar portion yielding under the weight of said substance to thereby enable the generally planar base of each of said leg forming portions to contact said floor bottom even in the event that said floor bottom is uneven, said substance subsequently hardening to form an upper floor having a plurality of legs each within a respective one of said leg forming portions, and resultantly to form a network of continuous cavities between the lower floor and the upper floor.
Dependencies are inferred from the claim text.