← Back to Patent Explorer
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
•
Filing: 1980-09-17
•
Granted: 1983-02-08
•
Expires: 2000-09-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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)

US3020600A Cited
US3409944A Cited
US3327356A Cited
US3413696A Cited
US3490219A Cited
US4236278A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag