US4350731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel yarn and fabric formed therefrom
Assignee: Albany International Corp
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Filing: 1981-06-08
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Granted: 1982-09-21
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Expires: 2001-06-08
Abstract
Abstract There is disclosed a composite yarn having lengthwise tensile strength and transverse resiliency. The yarn comprises a high tensile strength core yarn covered by an elastomeric filament. The yarn is useful to prepare compressible fabrics and is particularly useful for the making of papermaker's wet press felts.
Inventors
- 👤 Elizabeth Siracusano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:11
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; Y; Y10; Y10S; Y10S162/00; Y10S162/90; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2933; Y10T428/2936; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3724; Y10T442/50; Y10T442/56
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
25 words
A composite yarn, which comprises: a core yarn selected from the class consisting of high tensile strength, non-elastic textile yarns, covered with an elastomeric filament.
Claim 2
Dependent Claim
25 words
A composite yarn, which comprises: a core yarn selected from the class consisting of high tensile strength, non-elastic textile yarns, covered with an elastomeric filament.
Claim 3
Dependent Claim
12 words
The yarn of claim 1 wherein the elastomeric filament is a polyurethane.
Claim 4
Dependent Claim
12 words
The yarn of claim 1 wherein the core yarn is a polyamide.
Claim 5
Dependent Claim
56 words
A composite yarn, which comprises; a core yarn selected from the class consisting of high tensile strength non-elastic, monofilament, multifilament and spun yarn, wrapped in a first direction and in a second direction with an elastomeric filament, the lengthwise axis of said wrappings being at an angle non-perpendicular to the lengthwise axis of the core yarn.
Claim 6
Dependent Claim
56 words
A composite yarn, which comprises; a core yarn selected from the class consisting of high tensile strength non-elastic, monofilament, multifilament and spun yarn, wrapped in a first direction and in a second direction with an elastomeric filament, the lengthwise axis of said wrappings being at an angle non-perpendicular to the lengthwise axis of the core yarn.
Claim 7
Dependent Claim
11 words
A fabric which comprises interwoven yarns as described in claim 4.
Claim 8
Dependent Claim
13 words
A wet press papermaker's felt made from an endless fabric of claim 5.
Claim 9
Dependent Claim
25 words
A wet press papermaker's felt of claim 6 which further comprises a batt of non-woven staple textile fibers needled to a surface of the fabric.
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) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |