Patents by Inventor Bacchini Alberto

Bacchini Alberto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5059104
    Abstract: A melt-spinning apparatus includes a feed device for feeding a molten polymer composition from at least one extruder to a multiplicity of spinning orifices provided by a plurality of spinnerets for producing a multiplicity of discrete continuous extrudates emerging from the orifices in a generally downward direction; quenching devices for cooling the extrudates and for solidifying them to form a multiplicity of discrete continuous filaments; take-up and stretching devices provided downstream from the orifices for contacting and stretching the filaments; the quenching devices include guides for directing at least one stream of a cooling gas having a quenching temperature onto a portion, at least, of the extrudates; the orifices or spinnerets are arranged to form an annular array and a portion, at least, of the quenching devices is provided to direct the cooling gas stream in a substantially radial manner onto the extrudates that emerge from the orifices in the annular array.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: October 22, 1991
    Assignee: Filteco S.p.A.
    Inventor: Bacchini Alberto