Plastic article or earthenware shaping or treating: apparatus – Continuous filament forming or film casting means with...
Reexamination Certificate
2005-11-22
2005-11-22
Del Sole, Joseph S. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Continuous filament forming or film casting means with...
C425S072200, C425S17480E, C019S299000
Reexamination Certificate
active
06966762
ABSTRACT:
The invention concerns a device for opening and distributing a bundle of filaments when producing a nonwoven textile web by a technique which consists in: extruding melted organic polymer through a die perforated with holes, so as to form a bundle or curtain of filaments; then directing the extruded filaments by drawing by means of one or several fluid jets; and finally, receiving the bundle of filaments in the form of a web on a mobile conveyor belt. The invention is characterised in that it consists of an assembly arranged downstream of the outlet of the drawing assembly and separate therefrom, said assembly comprising, arranged in the proximity of the drawing slot outlet, a diffuser comprising an intake zone shaped as a convergent nozzle extending over the whole width of the installation opposite the drawing slot outlet producing the web, extended by a divergent nozzle, said assembly being associated with a ramp electrostatically charging the filaments before they are received on the receiving belt.
REFERENCES:
patent: 3286896 (1966-11-01), Kinney
patent: 3325906 (1967-06-01), Franke
patent: 3334161 (1967-08-01), De Guzman
patent: 3338992 (1967-08-01), Kinney
patent: 3341394 (1967-09-01), Kinney
patent: 3402227 (1968-09-01), Knee
patent: 3967118 (1976-06-01), Sternberg
patent: 4820142 (1989-04-01), Balk
patent: 5225018 (1993-07-01), Zeldin et al.
patent: 5397413 (1995-03-01), Trimble et al.
patent: 5460500 (1995-10-01), Geus et al.
patent: 5702730 (1997-12-01), Reifenhauser et al.
patent: 5766646 (1998-06-01), Geus et al.
patent: 5800840 (1998-09-01), Geus et al.
patent: 5814349 (1998-09-01), Geus et al.
patent: 6117801 (2000-09-01), McGinty et al.
patent: 24 21 401 (1975-11-01), None
patent: 28 38 977 (1980-03-01), None
patent: 37 27 374 (1988-04-01), None
patent: 40 14 989 (1991-11-01), None
patent: 43 12 419 (1994-10-01), None
patent: 195 18 895 (1995-11-01), None
patent: 195 21 466 (1996-12-01), None
patent: 196 20 379 (1997-11-01), None
patent: 0 635 077 (1995-01-01), None
patent: 0 453 564 (1995-07-01), None
patent: 2 309 654 (1976-11-01), None
patent: 60-094663 (1985-05-01), None
patent: 63-282351 (1988-11-01), None
patent: 5-9535 (1993-02-01), None
patent: 53-11562 (1993-11-01), None
patent: WO 98/44176 (1998-10-01), None
Brockhaus Enzyklopadie, F. A. Brockhaus Mannheim, p. 57.
Maggio Rosario
Schmit Laurent
Del Sole Joseph S.
Pearne & Gordon LLP
Rieter Perfojet
LandOfFree
Device for opening and distributing a bundle of filaments... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for opening and distributing a bundle of filaments..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for opening and distributing a bundle of filaments... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3461137