System for surface profiling of poured concrete slabs
AssigneePantano Investments PTY Ltd
InventorAntonio Pantano
Life of this patent
Estimating the term…
Abstract
Apparatus for creating a step or break in level of a poured concrete building slab, said apparatus comprising a length of section of suitable height and closed or open cross-sectional shape supported upon a plurality of discrete chairs which are, in turn, fixed to supporting formwork by suitable fastenings; said chairs being unitary or comprising height-adjustable elements; said section providing level references to which the surfaces of the higher and lower parts of said concrete slab are finished and acting as a riser between the two said surfaces; said section and said chairs being left in place in said concrete slab following its curing.
Claims21
1-88. (canceled)
Apparatus for creating a step or break in level of a poured concrete building slab, said apparatus comprising a length of section of suitable height and cross-sectional shape supported upon a plurality of discrete chairs which are, in turn, fixed to supporting formwork by suitable fastenings;
- said chairs being unitary or comprising height-adjustable elements;
- said section providing level references to which the surfaces of the higher and lower parts of said concrete slab are finished and acting as a riser between the two said surfaces;
- said section and said chairs being left in place in said concrete slab following its curing.
A method of forming a step or break in level in a poured concrete building slab, said method comprising supporting a length of section of suitable height and cross-sectional shape upon a plurality of discrete chairs which are, in turn, fixed to supporting formwork by suitable fastenings, said chairs being unitary or comprising height-adjustable elements;
- pouring said concrete slab and finishing the surface of the higher part of said concrete slab level with the upper edge of said section or, optionally, to a lower level against said section or against a length of wood or other material supported in said section;
- finishing the surface of the lower part of said concrete slab approximately level with the upper surface of the lower part of said section;
- after curing of said concrete slab, removing the length of wood or other material, where used, and cutting away the free, un-embedded part of said section flush with the finished surface of said concrete slab lower part;
- and leaving said section and said chairs in place in the cured said concrete slab.
A method of forming a step or break in level in a poured concrete building slab, said method comprising supporting an elongated, hollow mould upon a plurality of discrete chairs which are, in turn, fixed to supporting formwork by suitable fastenings;
- said mould comprising two generally parallel, continuous side panels joined in fixed spatial relationship at their upper and lower edges by spacer elements which permit the entry of concrete from above and the passage there through to said formwork;
- said chairs being unitary or comprising height-adjustable elements;
- pouring said concrete slab, filling said mould and finishing the surface of the higher part of said concrete slab level with the upper edge of said mould and the surface of the lower part of said concrete slab level with the lower edge of said mould, the concrete within said filled mould being contiguous with that of said concrete slab beneath;
- and leaving said mould and said chairs in place in the cured said concrete slab.
Dependencies are inferred from the claim text.