US3565125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual wall fabric with circular connection points
Assignee: Collins and Aikman Corp
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Filing: 1968-10-01
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Granted: 1971-02-23
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Expires: 1988-10-01
Abstract
Abstract A dual wall fabric is provided, having integrally woven connection points, of circular configuration, the fabric being adapted to be filled with concrete or like filler material pumped between the layers. A means is provided for connecting the two layers together in such a fashion, that when concrete is pumped between the layers, a void may be provided, extending through the concrete mat formed upon setting-up of the concrete.
Inventors
- 👤 John T Hayes
- 👤 Robert G Currier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:40
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/123; D; D03; D03D; D03D25/00; E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/122; E02B3/127; E04; E04B; E04B1/00; E04B1/16; E04B1/167; E04B1/168; E04C; E04C2/00; E04C2/30; E04C2/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A dual wall containment fabric for use in containing a hardenable filler therein during setup having integrally woven thread strands connecting opposed fabric layers of double cloth weave wherein a plurality of said connecting strands cooperate to define a connection zone of generally circular configuration, with the opposed fabric layers in said zone being disposed against each other.
Claim 2
Dependent Claim
58 words
A dual wall containment fabric for use in containing a hardenable filler therein during setup having integrally woven thread strands connecting opposed fabric layers of double cloth weave wherein a plurality of said connecting strands cooperate to define a connection zone of generally circular configuration, with the opposed fabric layers in said zone being disposed against each other.
Claim 3
Dependent Claim
25 words
The fabric of claim 1, wherein the circular connection zone forms a repetitive pattern in both warp and weft directions of the double cloth fabric.
Claim 4
Dependent Claim
32 words
The fabric of claim 2, wherein each said connection zone comprises an outermost portion of tight weave construction which surrounds an innermost portion of loose weave construction relative to said outermost portion.
Claim 5
Dependent Claim
13 words
The fabric of claim 3, wherein said innermost portion is of rectangular configuration.
Claim 6
Dependent Claim
13 words
The fabric of claim 3, wherein said outermost portion comprises a rib weave.
Claim 7
Dependent Claim
15 words
The fabric of claim 3, wherein said innermost portion comprises an open mock leno weave.
Claim 8
Dependent Claim
93 words
A dual wall containment fabric having integrally woven connection points between opposed layers of the fabric, for use in receiving a solid-forming filler material applied under pressure between said layers, said connection points providing a means to restrain separation of the fabric layers as the filler material is being applied therebetween, said connection points each comprising a predetermined area having a peripheral configuration which defines means for preventing stress concentration at portions of connection point periphery during insertion of filler material between said layers, wherein said peripheral configuration comprises a substantially circular configuration.
Claim 9
Dependent Claim
93 words
A dual wall containment fabric having integrally woven connection points between opposed layers of the fabric, for use in receiving a solid-forming filler material applied under pressure between said layers, said connection points providing a means to restrain separation of the fabric layers as the filler material is being applied therebetween, said connection points each comprising a predetermined area having a peripheral configuration which defines means for preventing stress concentration at portions of connection point periphery during insertion of filler material between said layers, wherein said peripheral configuration comprises a substantially circular configuration.
Claim 10
Dependent Claim
15 words
The fabric of claim 7, wherein each said connection point is of generally circular configuration.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |