The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2004
Filed:
Dec. 12, 2001
Heinz-Dieter Beeck, Frankfurt am Main, DE;
Roland Estelmann, Landau, DE;
Rainer Tietze, Nauheim, DE;
Andreas Weichel, Usingen, DE;
Zimmer Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
The invention relates to a spinneret for spinning thermoplastics. Said spinneret comprises a central polymer inlet channel, a filter assembly ( ), consisting of one or more filter plates of various filtration grades, a spinneret plate ( ) and a housing ( ) which receives and tightly surrounds the filter assembly ( ) and the spinneret plate ( ). The selection of suitable materials and tolerances for the individual parts of the spinneret enables the sealing effect to be achieved at operating temperature by the increased expansion of the internal components, in relation to the external housing.