Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – For extrusion or injection type shaping means
Reexamination Certificate
2006-10-24
2006-10-24
Del Sole, Joseph S. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
For extrusion or injection type shaping means
C425S382200, C425S464000
Reexamination Certificate
active
07125238
ABSTRACT:
An apparatus for melt spinning a plurality of strand-like filaments through a spinneret, which is mounted within a downwardly open receptacle in a nozzle holder. The spinneret includes a housing which is deformed by the entry of the pressurized polymeric melt into an internal diffuser chamber, so as to press the spinneret against the inner wall of the receptacle and thereby seal the melt inlet of the spinneret against the melt outlet in the receptacle. Thus the high pressure forces required for sealing only arise and are active during the operational state, and the spinneret can be otherwise held in the nozzle holder under a minimal securing force which permits the spinneret to be easily loosened and removed for periodic maintenance.
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Reutter Tilman
Vollmers Christian
Alston & Bird LLP
Del Sole Joseph S.
Saurer GmbH & Co. KG
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