US4011640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn entanglement nozzle
Assignee: Milliken Research Corp
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Filing: 1975-10-20
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Granted: 1977-03-15
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Expires: 1995-10-20
Abstract
Abstract An air jet nozzle to entangle the filaments of a continuous synthetic multifilament yarn or yarns by directing a jet of air substantially perpendicular to the running strand of yarn or yarns to be entangled. The yarn passes through an opening in the nozzle which has an upper curved surface to control the flow of air and to prevent dead air shots whereat the yarn will not be entangled.
Inventors
- 👤 Jay Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:31
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A filament entangling air jet nozzle comprising: a body portion having a substantially planar surface, a cap portion having a substantially planar surface, means releasably securing said cap portion to said body portion with substantially all of the planar surface of said cap portion flush with the planar surface of said body portion and allowing said cap portion to be pivoted in a direction substantially parallel to the planar portion of said body portion when released, said body portion having a yarn slot therethrough, said cap portion having a yarn slot therethrough mating with the yarn slot of said body portion and an air orifice in said body portion communicating with said yarn slot in said body portion.
Claim 2
Dependent Claim
118 words
A filament entangling air jet nozzle comprising: a body portion having a substantially planar surface, a cap portion having a substantially planar surface, means releasably securing said cap portion to said body portion with substantially all of the planar surface of said cap portion flush with the planar surface of said body portion and allowing said cap portion to be pivoted in a direction substantially parallel to the planar portion of said body portion when released, said body portion having a yarn slot therethrough, said cap portion having a yarn slot therethrough mating with the yarn slot of said body portion and an air orifice in said body portion communicating with said yarn slot in said body portion.
Claim 3
Dependent Claim
12 words
The nozzle of claim 1 wherein said yarn slots are arcuate shaped.
Claim 4
Dependent Claim
13 words
The nozzle of claim 1 wherein said yarn slots are substantially semicircular shaped.
References Cited (Backward Citations)
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Cited
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US3822449A
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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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |