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:
Aug. 16, 1988
Filed:
Sep. 05, 1986
Friedrich Lambertus, Stuttgart, DE;
Werner & Pfleiderer GmbH, Stuttgart, DE;
Abstract
A perforated plate construction for the underwater granulating of plastic strands comprising a base member with a melt distribution channel and a plurality of inlet channels connected to the melt distribution channel and to extruder nozzles of a cutting plate. The base plate is heated in the region of the inlet channels. Between the base member and the cutting plate is an insulating layer through which the extruder nozzles extend. In order to permit compensation for thermal expansion in the cutting plate without damage to the cutting plate and the insulating layer, the latter is formed as an air gap which is substantially coextensive with the cutting plate in the transverse direction of the extruder nozzles. The cutting plate is supported on the base plate by a plurality of tubular support elements which are separate from each other and freely extended through the air gap.