US5806264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-cellular wall structure
Assignee: Phillip Boot Holdings Pty Ltd
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Filing: 1995-08-15
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Granted: 1998-09-15
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Expires: 2015-08-15
Abstract
Abstract A prefabricated reinforced concrete wall structure formed in two parts, the first part including a plurality of walling units spaced apart but in groups over the whole area of the wall, channel shaped spaces between and around the groups of walling elements being configured in a grid formation and being filled by a high strength reinforced concrete cast in and around the group of walling units and constituting a concrete grid as the dominant structural member of the prefabricated wall panel. The walling units and the concrete grid are further supported by a layer of Portland cement based render on both sides of the wall surface, the completed wall structure being significantly lighter in weight and having a lower Portland cement volume in comparison with normal concrete walls of similar structural ability.
Inventors
- 👤 Phillip Hanford Boot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/041; E04C2/30; E04C2/38; E04C2/382
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
A prefabricated reinforced concrete wall structure, the wall structure comprising: a plurality of groups of walling units, the walling units in each group being spaced apart from one another and the groups of walling units being spaced from one another by a distance substantially greater than a distance between the walling units within each group, a concrete grid formed of a high strength reinforced concrete cast into and filling spaces between the groups of walling units and also surrounding each of the groups of walling units, and a layer of a Portland cement based render on both of two opposed sides of the wall structure bonded to the walling units and to the concrete grid, the layers of render providing the wall structure with two substantially parallel planar opposed surfaces.
Claim 2
Dependent Claim
130 words
A prefabricated reinforced concrete wall structure, the wall structure comprising: a plurality of groups of walling units, the walling units in each group being spaced apart from one another and the groups of walling units being spaced from one another by a distance substantially greater than a distance between the walling units within each group, a concrete grid formed of a high strength reinforced concrete cast into and filling spaces between the groups of walling units and also surrounding each of the groups of walling units, and a layer of a Portland cement based render on both of two opposed sides of the wall structure bonded to the walling units and to the concrete grid, the layers of render providing the wall structure with two substantially parallel planar opposed surfaces.
Claim 3
Dependent Claim
16 words
A wall structure as claimed in claim 1 wherein the walling units are hollow and unfilled.
Claim 4
Dependent Claim
19 words
A wall structure as claimed in claim 1 wherein the walling units are arranged in a stretcher bond configuration.
Claim 5
Dependent Claim
25 words
A wall structure as claimed in claim 1 wherein the layers of Portland cement render are bonded to the walling units and the concrete grid.
Claim 6
Dependent Claim
22 words
A wall structure as claimed in claim 1 wherein the layers of Portland cement render project into gaps between adjacent walling units.
Claim 7
Independent Claim
124 words
A method of constructing a wall structure consisting in the following steps: (a) forming a plurality of walling units; (b) laying down a layer of uniform thickness of Portland cement render on a flat surface; (c) arranging the walling units on the cement render spaced apart but in groups over the whole area of the structure to form channel spaces between and around the groups of walling units to define a grid; (d) filling said channel spaces with a high strength concrete with the introduction therein of reinforcing means, to form a high strength reinforced concrete grid structure; (e) spreading a second layer of Portland cement render of uniform thickness over the walling units and the filled channel spaces; and (f) curing the structure.
Claim 8
Independent Claim
124 words
A method of constructing a wall structure consisting in the following steps: (a) forming a plurality of walling units; (b) laying down a layer of uniform thickness of Portland cement render on a flat surface; (c) arranging the walling units on the cement render spaced apart but in groups over the whole area of the structure to form channel spaces between and around the groups of walling units to define a grid; (d) filling said channel spaces with a high strength concrete with the introduction therein of reinforcing means, to form a high strength reinforced concrete grid structure; (e) spreading a second layer of Portland cement render of uniform thickness over the walling units and the filled channel spaces; and (f) curing the structure.
Claim 9
Dependent Claim
35 words
A method as claimed in claim 6 wherein said second layer of render is applied while the concrete in said channel spaces is still in a condition to form a wet bond with the render.
Claim 10
Dependent Claim
33 words
A method as claimed in claim 6 wherein said walling units have hollow cores and prior to the filling of said channel spaces said cores are masked to prevent the entry of concrete.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-14 | 2002-03-16 | 2002-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-14 | 2006-03-16 | 2006-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-14 | 2010-03-16 | 2010-09-15 | $7700.00 | Window Closed / Lapsed |