US3823541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effect voluminous yarn
Assignee: Rhodiaceta SA
•
Filing: 1971-10-20
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Granted: 1974-07-16
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Expires: 1991-10-20
Abstract
Abstract A high bulk multifilament textured yarn is disclosed, and process and nozzle for manufacturing same. The yarn has alternating compact zones and open zones with the specific volume of the open zones being at least twice that of the compact zones, the open zones being substantially of oblong form with at least a portion of the filaments thereof being distributed in a random manner in the interior of said open zones and entangled therein. The yarn is produced by passing at least one effect yarn through a turbulence chamber under substantially no tension, with the yarn being fed substantially axially to said turbulence chamber by way of a cylindrical conduit having a smaller cross-sectional area than said turbulence chamber. The yarn of this invention may be used to make woven or knitted goods and is suitable for use in hosiery.
Inventors
- 👤 M Buzano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:11
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/162
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
141 words
High bulk textured multifilament yarn comprising at least one end, said yarn having alternating compact and open zones forming effects, the frequency of effect being between about 5 and about 50 mm, the specific volume of said open zones being at least twice the specific volume of said compact zones, the shape of the outer surface of said open zones being oblong, at least 20 percent of the filaments of said at least one end being distributed in a random manner in the interior of said open zones, with the distance of said filaments in relation to the major axis of the yarn varying from filament to filament, less than 40 percent of the filaments being entangled in the open zones, the average length of the compact zones being at least 50 percent less than the length of the open zones.
Claim 2
Dependent Claim
141 words
High bulk textured multifilament yarn comprising at least one end, said yarn having alternating compact and open zones forming effects, the frequency of effect being between about 5 and about 50 mm, the specific volume of said open zones being at least twice the specific volume of said compact zones, the shape of the outer surface of said open zones being oblong, at least 20 percent of the filaments of said at least one end being distributed in a random manner in the interior of said open zones, with the distance of said filaments in relation to the major axis of the yarn varying from filament to filament, less than 40 percent of the filaments being entangled in the open zones, the average length of the compact zones being at least 50 percent less than the length of the open zones.
Claim 3
Dependent Claim
27 words
The yarn claimed in claim 1 wherein said open zones have a specific volume at least 2.5 times greater than the specific volume of said compact zones.
Claim 4
Dependent Claim
37 words
The yarn as claimed in claim 1 wherein said yarn contains at least two ends, at least the major portion of the filaments of at least one of said ends being opened to form said open zones.
Claim 5
Dependent Claim
68 words
ThE yarn as claimed in claim 3 wherein at least one end is an effect yarn, which forms said open zones by the opening of at least most of the filaments thereof, and at least one other end is a core yarn in a rectilinear state which has a specific volume in said open zones which is substantially the same as the specific volume in said compact zones.
Claim 6
Dependent Claim
28 words
The yarn as claimed in claim 4, wherein said at least one core yarn is of filaments having greater tensile strengths than the filaments of said effect yarn.
Claim 7
Dependent Claim
20 words
The yarn as claimed in claim 5, wherein at least 30 percent of the filaments of said yarn are broken.
Claim 8
Dependent Claim
27 words
The yarn as claimed in claim 1, wherein the said open zones and said compact zones contain broken filaments, blocked at least in part in said zones.
Claim 9
Dependent Claim
25 words
The yarn as claimed in claim 1, wherein the shape of the outer surface of said open zones is in the form of a spindle.
Claim 10
Dependent Claim
17 words
The yarn as claimed in claim 8, wherein the form of said spindle is a revolution spindle.
Claim 11
Dependent Claim
20 words
The yarn as claimed in claim 1, wherein said open zones and said compact zones occur in regular effect periods.
Claim 12
Dependent Claim
16 words
The yarn as claimed in claim 1, wherein said yarn has a distinct random textured effect.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |