Patent US3576284A successfully refreshed from Google Patents.
US3576284A
Expired / Lapsed
US
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Apparatus for the treatment of bundle of filaments
Assignee: Rhodiaceta SA
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Filing: 1969-05-22
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Granted: 1971-04-27
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Expires: 1989-05-22
Abstract
Abstract The specification describes an apparatus for the treatment of a bundle of filaments with a jet of fluid under pressure. A distribution chamber is formed with at least one conduit for feeding fluid under pressure thereto, an outlet duct connected to said distribution chamber by a smooth, inwardly convex surface, formed as a curve of revolution, coaxial with the outlet duct, and a convergent inlet member to the chamber connected to a tube, coaxial with the outlet duct, and extending into the distribution chamber, the free end of the tube being located within and spaced from said smooth surface at the junction thereof with said outlet duct.
Inventors
- 👤 Jacques Fellous
- 👤 Pierre Goullioud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:06
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/005; D04H3/009; D04H3/011; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481; D01D5/00; D01D5/08; D01D5/098; D01D5/0985; D04H3/02; D04H3/03; D04H3/037
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
In an apparatus for the drawing and advance of a bundle of continuous chemical filament by means of a fluid under pressure, comprising a distribution chamber, at least one conduit for feeding fluid under pressure to said distribution chamber, an outlet duct to said distribution chamber, a smooth inwardly convex surface joining said duct to said distribution chamber and formed as a curve of revolution, a common axis to said outlet duct and smooth surface and a convergent inlet member to said distribution chamber, the improvement consisting in a tube coaxial with said common axis, connected to said inlet member and extending into said distribution chamber and a free downstream end to said tube located within and spaced from said smooth surface at the level of the junction point thereof with said outlet duct.
Claim 2
Dependent Claim
134 words
In an apparatus for the drawing and advance of a bundle of continuous chemical filament by means of a fluid under pressure, comprising a distribution chamber, at least one conduit for feeding fluid under pressure to said distribution chamber, an outlet duct to said distribution chamber, a smooth inwardly convex surface joining said duct to said distribution chamber and formed as a curve of revolution, a common axis to said outlet duct and smooth surface and a convergent inlet member to said distribution chamber, the improvement consisting in a tube coaxial with said common axis, connected to said inlet member and extending into said distribution chamber and a free downstream end to said tube located within and spaced from said smooth surface at the level of the junction point thereof with said outlet duct.
Claim 3
Dependent Claim
57 words
The improvement as defined in claim 1, wherein said free end of said tube and said smooth surface adjacent thereto define an annular space having a first area, and said smooth surface encloses a second area at the location of said free end, and wherein said first area is between 0.1 and 0.6 of said second area.
Claim 4
Dependent Claim
57 words
The improvement as defined in claim 1, wherein said free end to said tube and said smooth surface adjacent thereto define an annular space having a first area, and said smooth surface encloses a second area at the location of said free end, and wherein said first area is between 0.25 and 0.40 of said second area.
References Cited (Backward Citations)
FR942822A
Cited
US3452910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |