US3739746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn coating device
Assignee: Phillips Petroleum Co
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Filing: 1971-06-03
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Granted: 1973-06-19
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Expires: 1991-06-03
Abstract
Abstract Yarn is passed through a chamber having a reservoir of a liquid addendum in the lower portion thereof below the yarn. An aspirator draws liquid from the reservoir and sprays the withdrawn liquid onto the yarn. Excess liquid returns to the reservoir. A liquid trap on the gas exhaust minimizes loss of liquid.
Inventors
- 👤 R Kodis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:01
CPC Classifications
D; D06; D06B; D06B1/00; D06B1/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
A yarn treating device comprising means defining a chamber; a yarn inlet in one wall of said chamber and a yarn outlet in an opposite wall of said chamber; means for providing a reservoir of a liquid addendum in a lower portion of said chamber below said yarn inlet and said yarn outlet; an aspirating nozzle positioned in said chamber adjacent the yarn path between said yarn inlet and said yarn outlet and having an aspirating gas inlet tube and an aspirated liquid inlet tube; said aspirated liquid inlet tube extending downwardly into said reservoir of liquid addendum to supply liquid addendum to said nozzle; means for supplying an aspirating gas to said aspirating gas inlet tube; said aspirating nozzle being directed to cause at least a portion of the aspirated liquid to contact a yarn passing from said yarn inlet to said yarn outlet while any excess aspirated liquid returns to said reservoir; means for venting the spent aspirating gas from said chamber; said nozzle being positioned adjacent said yarn path and directed at said yarn path so that the nozzle exhaust causes the separation of the filaments of a multiple filament yarn to enable the liquid to be applied to each filament.
Claim 2
Dependent Claim
30 words
A device in accordance with claim 2 further comprising a liquid trap in said means for venting to recover substantially all of the entrained liquid from the gas being vented.
Claim 3
Dependent Claim
37 words
A device in accordance with claim 2 wherein said nozzle is positioned below said yarn path and is directed upwardly at said yarn path to provide a spray of droplets of liquid through which the yarn passes.
Claim 4
Dependent Claim
32 words
A device in accordance with claim 2 wherein said chamber is enclosed except for said yarn inlet, said yarn outlet, said means for venting, and said means for supplying an aspirating gas.
Claim 5
Dependent Claim
92 words
A device in accordance with claim 5 wherein said means for venting comprises a liquid trap having a gas inlet conduit and a gas exhaust, a vent and fill conduit having one end thereof communicating with said chamber at a point below said yarn path and above said reservoir, and means for releasably connecting said gas inlet conduit to the other end of said vent and fill conduit whereby said gas inlet conduit can be disconnected for the purpose Of adding liquid addendum to said reservoir through said vent and fill conduit.
Claim 6
Dependent Claim
33 words
A device in accordance with claim 6 wherein at least a portion of said means defining a chamber is transparent so that the level of liquid in said reservoir can be visually observed.
Claim 7
Dependent Claim
22 words
A device in accordance with claim 7 further comprising means for adjusting the rate of flow of aspirating gas to said nozzle.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |