Patent US6351918B1 successfully refreshed from Google Patents.
US6351918B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated concrete wall
Assignee: Individual
•
Filing: 1999-02-01
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Granted: 2002-03-05
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Expires: 2019-02-01
Abstract
Abstract A system is disclosed for securing a layer of insulation in place between two spaced apart wall forms while concrete is poured on both sides of the insulation layer.
Inventors
- 👤 Albert P. Westra
- 👤 Gregory A. Westra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:12
CPC Classifications
E; E04; E04G; E04G9/00; E04G9/10; E04G17/00; E04G17/06; E04G17/075; E04G17/0751; E04G17/0754; E04G2017/0646
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
192 words
In a system providing an insulation layer within a poured concrete wall formed between first and second horizontally spaced wall forms, the invention comprising: (a) a plurality of horizontally extending tie strips having opposite ends, said opposite ends of said tie strips being connected to the horizontally spaced wall forms; (b) each of said tie strips having first and second apertures positioned along the horizontal length of said tie strip; (c) said first aperture in each tie strip being spaced a first predetermined distance away from the first wall form and toward the second wall form, and said second aperture in each tie strip being spaced a second predetermined distance away from the second wall form and toward the first wall form; (d) said first and second predetermined distances being spaced apart from each other by a distance equal to the thickness of the insulation layer; and (e) first and second wedge means extending through said first and second apertures and engaging opposite sides of the insulation layer for holding the insulation layer in place during the pouring of concrete between the wall forms and on opposite sides of the insulation layer.
Claim 2
Dependent Claim
192 words
In a system providing an insulation layer within a poured concrete wall formed between first and second horizontally spaced wall forms, the invention comprising: (a) a plurality of horizontally extending tie strips having opposite ends, said opposite ends of said tie strips being connected to the horizontally spaced wall forms; (b) each of said tie strips having first and second apertures positioned along the horizontal length of said tie strip; (c) said first aperture in each tie strip being spaced a first predetermined distance away from the first wall form and toward the second wall form, and said second aperture in each tie strip being spaced a second predetermined distance away from the second wall form and toward the first wall form; (d) said first and second predetermined distances being spaced apart from each other by a distance equal to the thickness of the insulation layer; and (e) first and second wedge means extending through said first and second apertures and engaging opposite sides of the insulation layer for holding the insulation layer in place during the pouring of concrete between the wall forms and on opposite sides of the insulation layer.
Claim 3
Dependent Claim
36 words
In the system of claim 1 , said apertures being rectangular with lengths and widths, and having their lengths extending horizontally; and said wedge means include flexible portions for expanding after insertion through said rectangular apertures.
Claim 4
Independent Claim
144 words
A system for positioning a layer of insulation within a poured concrete wall comprising in combination: (a) first and second forming walls horizontally spaced apart; (b) ties extending horizontally between said walls and connected at their ends to said walls; (c) each of said ties having first and second slots spaced along the length of said tie; (d) a layer of insulation positioned between said first and second walls and providing space for poured concrete on both sides of said insulation layer between said walls; (e) said slots being spaced apart by a distance substantially equal to the thickness of said insulation layer; and (f) first and second wedge means extending through said first and second slots, respectively, for engaging said insulation layer on both sides during the pouring of concrete on both sides of said insulation layer between said first and second walls.
Claim 5
Independent Claim
144 words
A system for positioning a layer of insulation within a poured concrete wall comprising in combination: (a) first and second forming walls horizontally spaced apart; (b) ties extending horizontally between said walls and connected at their ends to said walls; (c) each of said ties having first and second slots spaced along the length of said tie; (d) a layer of insulation positioned between said first and second walls and providing space for poured concrete on both sides of said insulation layer between said walls; (e) said slots being spaced apart by a distance substantially equal to the thickness of said insulation layer; and (f) first and second wedge means extending through said first and second slots, respectively, for engaging said insulation layer on both sides during the pouring of concrete on both sides of said insulation layer between said first and second walls.
Claim 6
Dependent Claim
32 words
In the combination of claim 3 wherein said wedge means comprise flexible wedges having ends and mid-portions, and said mid-portions are of greater size than said ends for wedging into said slots.
Claim 7
Dependent Claim
23 words
The combination of claim 3 wherein said wedge means are comprised of plastic with flexible portions and grooves for locking into said slots.
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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) | 2005-03-04 | 2005-09-03 | 2006-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-04 | 2009-09-03 | 2010-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-04 | 2013-09-03 | 2014-03-05 | $7700.00 | Window Closed / Lapsed |