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US4340341A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for guiding filaments

Assignee: Celanese Corp
•
Filing: 1980-10-21
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Granted: 1982-07-20
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Expires: 2000-10-21
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Abstract

Abstract A guide encloses a group of traveling filaments arranged in a pattern forming a main longitudinal axis. The guide comprises a carrier movable toward and away from the filament group. A plurality of relatively movable members are mounted on the carrier for movement between open and closed positions. Those members form a through-passage for the filament group in the closed position. An actuating mechanism is operatively connected to the carrier and members for extending the carrier toward the filament group, and closing the members around the filaments to converge the filaments. Thereafter, the carrier is retracted to a position where a longitudinal axis of the through-passage is substantially aligned with the main longitudinal axis formed by the filament group.

Inventors

  • 👤 Max L. Cardell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:52
CPC Classifications
D; D01; D01D; D01D11/00; D01D11/04; D01D5/00; D01D5/08; D01D5/088; D01D5/092

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 184 words
The combination of a spinneret for forming a group of filaments, and a guide disposed below the spinneret for guiding said group of filaments whereby such group forms a main longitudinal axis, said guide comprising: a carrier movable forwardly toward and rearwardly away from a location where the filament group defines a first cross-sectional area, a plurality of jaws movably mounted on said carrier for movement between: an open position, and a closed position in which said jaws close to form a through-passage which defines a second cross-sectional area smaller than said first cross-sectional area of the filament group and actuating means operatively connected to said carrier and jaws for: displacing said carrier forwardly toward the filament group to a filament-capturing position with said jaws open, closing said jaws around the group of filaments to converge all the filaments within said through-passage, with a longitudinal axis of said through-passage being spaced from said main longitudinal axis, retracting said carrier and closed jaws rearwardly to an operational position to displace said longitudinal axis of said through-passage to a location substantially aligned with said main axis.
Claim 2
Dependent Claim 184 words
The combination of a spinneret for forming a group of filaments, and a guide disposed below the spinneret for guiding said group of filaments whereby such group forms a main longitudinal axis, said guide comprising: a carrier movable forwardly toward and rearwardly away from a location where the filament group defines a first cross-sectional area, a plurality of jaws movably mounted on said carrier for movement between: an open position, and a closed position in which said jaws close to form a through-passage which defines a second cross-sectional area smaller than said first cross-sectional area of the filament group and actuating means operatively connected to said carrier and jaws for: displacing said carrier forwardly toward the filament group to a filament-capturing position with said jaws open, closing said jaws around the group of filaments to converge all the filaments within said through-passage, with a longitudinal axis of said through-passage being spaced from said main longitudinal axis, retracting said carrier and closed jaws rearwardly to an operational position to displace said longitudinal axis of said through-passage to a location substantially aligned with said main axis.
Claim 3
Dependent Claim 19 words
Apparatus according to claim 1, wherein said jaws, in said closed position, converge said filaments short of mutual contact.
Claim 4
Dependent Claim 32 words
Apparatus according to claim 1, wherein said jaws, in said closed position, form a wall of the through-passage which diverges upwardly in a direction opposite the direction of travel of the filaments.
Claim 5
Dependent Claim 24 words
Apparatus according to claim 1, wherein one of said jaws includes a lug and the other jaw includes a notch which receives said lug.
Claim 6
Dependent Claim 60 words
Apparatus according to claim 1, wherein there are two of said jaws, said jaws mounted for swinging movement about a common pivot axis on said carrier oriented parallel to said main longitudinal axis, said actuating means displacing said carrier forwardly to substantially align said pivot axis with said main longitudinal axis before said jaws are moved to the closed position.
Claim 7
Dependent Claim 12 words
Apparatus according to claim 1, wherein said through-passage has a circular cross-section.

References Cited (Backward Citations)

US3529323A Cited
US3621531A Cited
US3555808A Cited
US4000238A Cited
JPS5255718A Cited
SU597751A1 Cited
JPS539293A Cited
US4259048A Cited
US4204828A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-07-19 1986-01-18 1986-07-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-07-19 1990-01-18 1990-07-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-07-19 1994-01-18 1994-07-20 $7700.00 Window Closed / Lapsed

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