US3685268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for use in the production of fancy yarns
Assignee: Moulinage et Retorderie de Chavanoz SA
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Filing: 1970-05-08
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Granted: 1972-08-22
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Expires: 1990-05-08
Abstract
Abstract A process for preparing fancy yarns utilizing a false twist assembly comprising feeding one yarn at a rate in excess with reference to a second yarn and subsequently contacting both of said yarns with a reciprocating frictional force. An apparatus comprising a false friction twist assembly associated with a movable means having a passage for the yarns to be treated is also disclosed.
Inventors
- 👤 Pierre Seguin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:00
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A process for the manufacture of a fancy yarn comprising at least two yarns, threads or rovings which comprises feeding first and second yarns, said first yarn being fed at a rate in excess with reference to said second yarn, joining said first and second yarns, and contacting both of said first and second yarns with a reciprocating frictional force, said reciprocating frictional force being created by a frictional false twist means which rotates about its own axis.
Claim 2
Dependent Claim
78 words
A process for the manufacture of a fancy yarn comprising at least two yarns, threads or rovings which comprises feeding first and second yarns, said first yarn being fed at a rate in excess with reference to said second yarn, joining said first and second yarns, and contacting both of said first and second yarns with a reciprocating frictional force, said reciprocating frictional force being created by a frictional false twist means which rotates about its own axis.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein one of said first and second yarns is fed at an irregular rate in excess with reference to said second yarn.
Claim 4
Dependent Claim
41 words
The process of claim 1 wherein at least one of said first and second yarns is fed in a direction different from the yarn wherein the angle described by said first and second yarns is from about 30* to 90* .
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein the point of junction of said first and second yarns is movable upstream of said frictional false twist means.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein said yarns are joined on said frictional false twist means.
Claim 7
Dependent Claim
16 words
The process of claim 1 wherein said yarns are joined above said frictional false twist means.
Claim 8
Independent Claim
60 words
An apparatus for the manufacture of fancy yarns comprising: a frictional false twist means, means for guiding at least one yarn of a core yarn and effect yarn assembly to said frictional false twist means, said guide means being freely slidable on a fixed element, and means for sliding said guide means in a reciprocating motion on said fixed element.
Claim 9
Independent Claim
60 words
An apparatus for the manufacture of fancy yarns comprising: a frictional false twist means, means for guiding at least one yarn of a core yarn and effect yarn assembly to said frictional false twist means, said guide means being freely slidable on a fixed element, and means for sliding said guide means in a reciprocating motion on said fixed element.
Claim 10
Dependent Claim
24 words
The apparatus of claim 7 wherein said means for sliding said guide means in a reciprocating motion is an electromagnet on a metallic blade.
Claim 11
Dependent Claim
22 words
The apparatus of claim 7 wherein said means for sliding and guide means in a reciprocating motion is an intermittent fluid jet.
Claim 12
Dependent Claim
22 words
The apparatus of claim 7 wherein said frictional false twist means comprises a hollow element having at least one annular friction surface.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |