US3730413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlacing jet
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1971-05-10
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Granted: 1973-05-01
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Expires: 1991-05-10
Abstract
Abstract Apparatus for intermingling filaments in a yarn, the apparatus having a control passageway therethrough, a slot parallel thereto opening into the passageway and two ducts opening into the passageway, the ducts being on one side of a plane through the center of the slot and having axes converging through the plane to a region within the passageway and beyond its center line.
Inventors
- 👤 P Mcdermott
- 👤 C Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:53
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
In apparatus for intermingling the filaments in a filament yarn, said apparatUs having a passageway extending therethrough with a substantially linear center line and a slot extending therethrough substantially parallel with that center line and opening into the passageway and at least two ducts opening into the passageway, whereby a continuously advancing filament yarn may be introduced through the slot into the passageway and be subjected to the filament intermingling action of fluid forced through the ducts, the improved arrangement wherein the ducts are all on one side of the plane through the center of the slot and wherein the ducts have axes converging through that plane to a region within the passageway and beyond its center line.
Claim 2
Dependent Claim
118 words
In apparatus for intermingling the filaments in a filament yarn, said apparatUs having a passageway extending therethrough with a substantially linear center line and a slot extending therethrough substantially parallel with that center line and opening into the passageway and at least two ducts opening into the passageway, whereby a continuously advancing filament yarn may be introduced through the slot into the passageway and be subjected to the filament intermingling action of fluid forced through the ducts, the improved arrangement wherein the ducts are all on one side of the plane through the center of the slot and wherein the ducts have axes converging through that plane to a region within the passageway and beyond its center line.
Claim 3
Dependent Claim
26 words
Apparatus according to claim 1 in which the ducts are angled with respect to the passageway axis to provide for fluid forwarding action on the yarn.
Claim 4
Dependent Claim
22 words
Apparatus according to claim 1 in which there are two ducts converging at an angle between their axes of less than 60*.
References Cited (Backward Citations)
US2880457A
Cited
US2812850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |