US4372010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the automatic infeed of a textile fibre sheet into a coiler
Assignee: Alsacienne de Constructions Mecaniques SA
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Filing: 1980-09-17
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Granted: 1983-02-08
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Expires: 2000-09-17
Abstract
Abstract Apparatus for the automatic infeed of a fibre sheet into a coiler comprises a smooth-surfaced transverse guide 6 to be placed at the delivery side of a pair of drawing rollers 1, 2. The guide 6 has an orifice 7 for gathering into a tuft the fibre sheet 3 coming from said pair of drawing rollers, a cylindrical outlet tube 8 extending said orifice 7, pneumatic means 18 for drawing the tuft into the outlet tube 8, and a pair of draw rolls 9 set at the downstream end of the outlet tube. The invention may be applied to the introduction of a fibre sheet into a coiler, the fibre sheet leaving the last pair of rollers of the drafting train of a machine.
Inventors
- 👤 Roger Gauvain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:36
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/72; B; B65; B65H; B65H51/00; B65H51/16; B65H54/00; B65H54/76; B65H54/80; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
183 words
Apparatus for the automatic infeed of a textile fibre sheet into a coiler, for example at the delivery side of a drafting machine, comprising a smooth-surfaced transverse guide to be placed at the delivery side of a pair of drawing rollers and having an orifice for gathering into a tuft the fibre sheet coming from said pair of rollers, a cylindrical outlet tube extending from said gathering orifice, pneumatic means coupled to said cylindrical outlet for inducing a suction of air therein and drawing the tuft into the outlet tube, and a pair of final draw rolls set at the downstream end of the outlet tube, said final rolls being positioned in their normal working made in a closed position to close substantially said downstream end for mechanically drawing the tuft through said rolls, and one of said final rolls being temporarily movable to a separated position apart from the other roll to open said downstream end and to cause said pneumatic means to induce a suction of air through said tube to drive the leading end of the tuft through said rolls.
Claim 2
Dependent Claim
183 words
Apparatus for the automatic infeed of a textile fibre sheet into a coiler, for example at the delivery side of a drafting machine, comprising a smooth-surfaced transverse guide to be placed at the delivery side of a pair of drawing rollers and having an orifice for gathering into a tuft the fibre sheet coming from said pair of rollers, a cylindrical outlet tube extending from said gathering orifice, pneumatic means coupled to said cylindrical outlet for inducing a suction of air therein and drawing the tuft into the outlet tube, and a pair of final draw rolls set at the downstream end of the outlet tube, said final rolls being positioned in their normal working made in a closed position to close substantially said downstream end for mechanically drawing the tuft through said rolls, and one of said final rolls being temporarily movable to a separated position apart from the other roll to open said downstream end and to cause said pneumatic means to induce a suction of air through said tube to drive the leading end of the tuft through said rolls.
Claim 3
Dependent Claim
28 words
Apparatus according to claim 1 in which the supply of air to said pneumatic means is controlled by said movement one of said rolls to said separated position.
References Cited (Backward Citations)
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Cited
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US3327356A
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US4236278A
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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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |