US4259394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermaking fabrics with enhanced dimensional stability
Assignee: HUYCK CORPORATION A CORP. OF NY.
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Filing: 1979-09-26
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Granted: 1981-03-31
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Expires: 1999-09-26
Abstract
Abstract A papermaking fabric composed of a base having a fibrous batt needled to one surface thereof, the base being formed of interwoven core wrapped yarns, comprising core yarns which are effectively heat infusible and wrapping yarns which are effectively heat fusible, the fibrous batt being either heat fusible or heat infusible, the wrapping yarns of the interwoven base being heat fused to each other at their points of contact with each other on the side of the interwoven base opposite the fibrous batt.
Inventors
- 👤 Abdul Q. Khan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/36; D03; D03D; D03D15/00; D02G3/44; D02G3/447; D03D15/20; D03D15/283; D03D15/40; D03D15/41; D03D15/50; D03D15/573; D03D15/587; D21; D21F; D21F7/00; D21F7/08; D21F7/083; D10; D10B; D10B2101/00; D10B2101/02; D10B2101/06; D10B2101/20; D10B2321/00; D10B2321/04; D10B2321/041; D10B2331/00; D10B2331/02; D10B2331/021; D10B2331/04; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3073; Y10T442/3081; Y10T442/3707; Y10T442/3724
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
A papermaking fabric comprising a base of interwoven machine direction and cross-machine direction core wrapped yarns composed of core forming yarns which are effectively heat infusible and wrap forming yarns which are effectively heat fusible, a fibrous batt needled to one side of said interwoven base, the wrap forming yarns of said interwoven base being heat fused to each other at their points of contact on the side of said interwoven base opposite said fibrous batt.
Claim 2
Dependent Claim
76 words
A papermaking fabric comprising a base of interwoven machine direction and cross-machine direction core wrapped yarns composed of core forming yarns which are effectively heat infusible and wrap forming yarns which are effectively heat fusible, a fibrous batt needled to one side of said interwoven base, the wrap forming yarns of said interwoven base being heat fused to each other at their points of contact on the side of said interwoven base opposite said fibrous batt.
Claim 3
Dependent Claim
18 words
The papermaking fabric claimed in claim 1 wherein said fibrous batt comprises fibers which are essentially heat infusible.
Claim 4
Dependent Claim
18 words
The papermaking fabric claimed in claim 1 wherein said fibrous batt comprising fibers which are effectively heat fusible.
Claim 5
Dependent Claim
21 words
The papermaking fabric claimed in claim 1 wherein said fibrous batt comprises a mixture of heat fusible and heat infusible fibers.
Claim 6
Dependent Claim
36 words
The papermaking fabric claimed in claim 1 wherein the core forming yarns are wrapped with a plurality of layers of wrapping yarns, and wherein the outer layer at least of the wrapping yarns is heat fusible.
Claim 7
Dependent Claim
18 words
The papermaking fabric claimed in claim 5 wherein the layers of wrapping yarns are wrapped in opposite directions.
Claim 8
Dependent Claim
24 words
The papermaking fabric claimed in claim 6 wherein the inner layer of the wrap forming yarns contains both heat fusible and heat infusible components.
Claim 9
Dependent Claim
22 words
The papermaking fabric claimed in claim 1 wherein the interwoven base is composed of load-bearing machine direction yarns and cross-machine direction yarns.
Claim 10
Dependent Claim
39 words
The papermaking fabric claimed in claim 1 wherein the interwoven base is composed of load-bearing machine direction yarns and cross-machine direction yarns, and wherein the machine direction core forming yarns at least comprise high strength and low shrinkage yarns.
Claim 11
Dependent Claim
18 words
The papermaking fabric claimed in claim 9 wherein the cross-machine direction core yarns also comprise low shrinkage yarns.
References Cited (Backward Citations)
US2313058A
Cited
US3839136A
Cited
US4015038A
Cited
US4151323A
Cited
US4143197A
Cited
US4119753A
Cited
US4202382A
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |