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US4280260A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for threading up a texturizing nozzle

Assignee: BASF SE
•
Filing: 1979-03-29
•
Granted: 1981-07-28
•
Expires: 1999-03-29
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Abstract

Abstract A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation. An apparatus for carrying out the above process, comprising a pivotable texturizing nozzle with an inlet member of variable cross-section, and a suction device which permits the pressure to be reduced, relative to atmospheric pressure, at the inlet member of the texturizing nozzle, is also disclosed.

Inventors

  • 👤 Wolfgang Martin
  • 👤 Hans Knopp
  • 👤 Dieter Herion
  • 👤 Gerhard Conzelmann
  • 👤 Guenter Leuchtmann
  • 👤 Peter Gujer
  • 👤 Dieter Guldenfels
  • 👤 Armin Wirz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:25
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 160 words
An apparatus for introducing at least one thread into a fluid-jet texturizing nozzle, said texturizing nozzle comprising an inlet member means of variable cross-section and a reduced pressure chamber, the texturizing nozzle together with the inlet member means being pivotably arranged and adapted to attach to said reduced pressure chamber in such a way that reduced pressure, relative to atmospheric pressure, can be set up at the inlet member means of the texturizing nozzle for drawing a cut thread end into the nozzle, said inlet member means of variable cross-section being formed by a rotatable cylindrical stopcock having a variable bore formed by a larger cylindrical bore and a smaller cylindrical bore means, said smaller cylindrical bore positioned at an angle of 20° to 90° to said larger cylindrical bore, and the web between the two bores being removed whereby the free cross-section can be altered so as to provide, as desired, a variable cross-section in the inlet member means.
Claim 2
Independent Claim 160 words
An apparatus for introducing at least one thread into a fluid-jet texturizing nozzle, said texturizing nozzle comprising an inlet member means of variable cross-section and a reduced pressure chamber, the texturizing nozzle together with the inlet member means being pivotably arranged and adapted to attach to said reduced pressure chamber in such a way that reduced pressure, relative to atmospheric pressure, can be set up at the inlet member means of the texturizing nozzle for drawing a cut thread end into the nozzle, said inlet member means of variable cross-section being formed by a rotatable cylindrical stopcock having a variable bore formed by a larger cylindrical bore and a smaller cylindrical bore means, said smaller cylindrical bore positioned at an angle of 20° to 90° to said larger cylindrical bore, and the web between the two bores being removed whereby the free cross-section can be altered so as to provide, as desired, a variable cross-section in the inlet member means.
Claim 3
Dependent Claim 28 words
An apparatus as set forth in claim 1, wherein said reduced pressure chamber has a volume from 2 to 20 times the volume of an empty texturizing nozzle.
Claim 4
Dependent Claim 28 words
An apparatus as set forth in claim 1, wherein said reduced pressure chamber has a volume from 4 to 10 times the volume of an empty texturizing nozzle.
Claim 5
Dependent Claim 33 words
An apparatus as set forth in claim 1, wherein said reduced pressure, relative to atmospheric pressure, set up at the inlet member means of the texturizing nozzle is from 300 to 700 mbar.
Claim 6
Dependent Claim 33 words
An apparatus as set forth in claim 1, wherein the reduced pressure, relative to atmospheric pressure, set up at the inlet member means of the texturizing nozzle is from 400 to 650 mbar.
Claim 7
Dependent Claim 19 words
An apparatus as set forth in claim 1, wherein said reduced pressure chamber is connected to a suction gun.

References Cited (Backward Citations)

US3094262A Cited
US3423000A Cited
US3837052A Cited
US3802036A Cited
US3970231A Cited
US3986325A Cited
US4073421A Cited
US4051581A Cited
DE2708102A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-07-27 1985-01-26 1985-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-07-27 1989-01-26 1989-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-07-27 1993-01-26 1993-07-28 $7700.00 Window Closed / Lapsed

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