US4019312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of combining synthetic yarns
Assignee: Akzona Inc
•
Filing: 1975-05-16
•
Granted: 1977-04-26
•
Expires: 1995-05-16
Abstract
Abstract A method is provided for combining continuous filament synthetic yarns of different shrinkage characteristics where one yarn is drawn and a second, previously drawn yarn is combined therewith without drawing the second yarn.
Inventors
- 👤 Ford E. Warrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:06
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; Y; Y10; Y10S; Y10S57/00; Y10S57/908
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
43 words
A method of combining continuous filament yarns of different shrinkage characteristics comprising: drawing a first synthetic yarn to produce elongation therein while combining therewith a second previously drawn synthetic yarn having a relatively higher shrinkage characteristic without imparting elongation to the second yarn.
Claim 2
Independent Claim
43 words
A method of combining continuous filament yarns of different shrinkage characteristics comprising: drawing a first synthetic yarn to produce elongation therein while combining therewith a second previously drawn synthetic yarn having a relatively higher shrinkage characteristic without imparting elongation to the second yarn.
Claim 3
Dependent Claim
14 words
The method as set forth in claim 1 wherein said first yarn is polyester.
Claim 4
Dependent Claim
14 words
The method as set forth in claim 2 wherein said second yarn is polyamide.
Claim 5
Dependent Claim
23 words
The method of claim 1 comprising passing said combined yarns through a tangling device before winding said yarns on a yarn collecting device.
Claim 6
Independent Claim
130 words
A method of combining undrawn polyester and drawn polyamide continuous filament yarns on a drawtwister having two creels provided for each drawing position and having means including a feed roll and a draw godet for drawing yarn, comprising having undrawn continuous filament polyester yarn on one creel position, and having drawn continuous filament polyamide yarn on a second creel position, comprising the steps of drawing said polyester yarn by use of said feed roll and said draw godet, and simultaneously introducing said polyamide yarn between said feed roll and said draw godet so the said drawn polyamide yarn is not further drawn; combining the said polyester and said polyamide yarns, and leading said combined yarns around the second draw godet; and winding said combined yarns on a yarn collecting device.
Claim 7
Independent Claim
130 words
A method of combining undrawn polyester and drawn polyamide continuous filament yarns on a drawtwister having two creels provided for each drawing position and having means including a feed roll and a draw godet for drawing yarn, comprising having undrawn continuous filament polyester yarn on one creel position, and having drawn continuous filament polyamide yarn on a second creel position, comprising the steps of drawing said polyester yarn by use of said feed roll and said draw godet, and simultaneously introducing said polyamide yarn between said feed roll and said draw godet so the said drawn polyamide yarn is not further drawn; combining the said polyester and said polyamide yarns, and leading said combined yarns around the second draw godet; and winding said combined yarns on a yarn collecting device.
Claim 8
Dependent Claim
23 words
Method of claim 5 comprising passing the said combined yarns through a tangling device before winding said yarns on a yarn collecting device.
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) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |