Patent US4360554A successfully refreshed from Google Patents.
US4360554A
Expired / Lapsed
US
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Carpet underlayment of needled scrim and fibrous layer with moisture barrier
Assignee: Globe International Inc
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Filing: 1981-06-29
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Granted: 1982-11-23
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Expires: 2001-06-29
Abstract
Abstract The disclosure is of an improved textile construction, useful as underlayment for carpeting. The construction comprises high temperature resistant staple fibers needled to a scrim of interwoven, high-temperature resistant yarns. The needled fabric has one surface treated to bond the surface fibers in place and one moisture-impervious film surface.
Inventors
- 👤 Frederick S. Campbell
- 👤 Elwood G. Trask
- 👤 Walter Gasior
- 👤 Roland Phaneuf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:43
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/06; B32B17/00; B32B17/02; B32B5/022; B32B5/08; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0047; D06N7/0049; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2377/00; B32B2405/00; B32B2471/00; B32B2471/02; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/23979; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/159
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A fire retardant, acoustical attenuating, low smoke, article, which comprises: a scrim of interwoven, high-temperature resistant textile yarns characterized in part by their high tensile strength and low stretch; said scrim having an upper surface and a lower surface; a layer of fibrous material in the form of discrete staple fibers, attached to the lower surface of the scrim, said layer being consolidated through entanglement of the individual fibers and integrated with said yarns by entanglement of the fibers therewith, said entanglements being of the character produced by a needling operation, said fibers being fibers of a synthetic, high-temperature resistant, polymeric resin; a layer of said fibers on the upper surface of the scrim, characterized by their adherence to the sub-surface of the underlayment and having been singed; and a moisture barrier attached to the free surface of the fibrous material layer.
Claim 2
Dependent Claim
142 words
A fire retardant, acoustical attenuating, low smoke, article, which comprises: a scrim of interwoven, high-temperature resistant textile yarns characterized in part by their high tensile strength and low stretch; said scrim having an upper surface and a lower surface; a layer of fibrous material in the form of discrete staple fibers, attached to the lower surface of the scrim, said layer being consolidated through entanglement of the individual fibers and integrated with said yarns by entanglement of the fibers therewith, said entanglements being of the character produced by a needling operation, said fibers being fibers of a synthetic, high-temperature resistant, polymeric resin; a layer of said fibers on the upper surface of the scrim, characterized by their adherence to the sub-surface of the underlayment and having been singed; and a moisture barrier attached to the free surface of the fibrous material layer.
Claim 3
Dependent Claim
14 words
The underlayment of claim 1 wherein the yarns are yarns of aromatic polyamide fibers.
Claim 4
Dependent Claim
12 words
The underlayment of claim 1 wherein the resin is an aromatic polyamide.
Claim 5
Dependent Claim
15 words
The underlayment of claim 1 wherein the moisture barrier is a layer of an organopolysiloxane.
Claim 6
Dependent Claim
13 words
The underlayment of claim 4 wherein the organopolysilocane is an RTV silicone rubber.
Claim 7
Dependent Claim
26 words
The underlayment of claim 1 wherein the fibers on the upper surface of the scrim are adhesively bonded to each other and/or to the scrim yarns.
References Cited (Backward Citations)
US3937861A
Cited
US4172170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |