US4323612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpets having pile of crimped and non-crimped nylon filaments
Assignee: Solutia Inc
•
Filing: 1980-04-21
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Granted: 1982-04-06
•
Expires: 2000-04-21
Abstract
Abstract Carpets are provided having a pile wherein the individual tufts of the pile are made from a plurality of continuous filament nylon yarns, at least one of which is composed of filaments having crimp (extant or latent) and the other yarn or yarns are composed of filaments having no crimp. Carpets of the invention, particularly velour carpets have improved tuft identity and are free from streaks.
Inventors
- 👤 Ernst J. van Issum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:30
CPC Classifications
D; D03; D03D; D03D27/00; D02; D02G; D02G3/00; D02G3/44; D02G3/445; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23936; Y10T428/23957; Y10T428/23964; Y10T428/23971; Y10T428/23993
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
A cut pile tufted carpet wherein each tuft consists of two continuous filament nylon yarns plied together, in which one of the yarns is composed of crimped filaments and the other yarn is composed of non-crimped filaments wherein all of the filaments are of substantially the same dTex and the ratio of crimped filaments to non-crimped filaments is 3:1 to 1:3.
Claim 2
Dependent Claim
61 words
A cut pile tufted carpet wherein each tuft consists of two continuous filament nylon yarns plied together, in which one of the yarns is composed of crimped filaments and the other yarn is composed of non-crimped filaments wherein all of the filaments are of substantially the same dTex and the ratio of crimped filaments to non-crimped filaments is 3:1 to 1:3.
Claim 3
Dependent Claim
16 words
A carpet according to claim 1, in which the crimped and non-crimped filaments have different dyeabilities.
Claim 4
Dependent Claim
33 words
A carpet according to claim 1, in which the combined yarns have a total dTex of from 1,000 to 4,500 and comprise from 50 to 200 filaments each of dTex 10 to 40.
Claim 5
Dependent Claim
21 words
A carpet according to claim 1, in which the pile is cut to form a velour, cut-loop or high-low tip-shear carpet.
Claim 6
Dependent Claim
17 words
The carpet according to claim 1 wherein at least 60% by number of the filaments are crimped.
References Cited (Backward Citations)
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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) | 1985-04-05 | 1985-10-05 | 1986-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-05 | 1989-10-05 | 1990-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-05 | 1993-10-05 | 1994-04-06 | $7700.00 | Window Closed / Lapsed |