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:
Mar. 14, 2006
Filed:
Jan. 26, 2005
Gregor Chszaniecki, Hannover, DE;
Gregor Chszaniecki, Hannover, DE;
Berstorff GmbH, Hannover, DE;
Abstract
A diverter valve is provided for an extruder, especially a twin-screw extruder, that allows for the replacement of the extruder screws without dismounting the same. The diverter valve includes a valve housing with a first flow passage, which can be fastened indirectly or directly to an extruder cylinder, whereby the valve housing can be arranged on the extruder cylinder with the first flow passage aligned with the screw area. The cross section of the first flow passage is constructed large enough to pass extruder screws arranged in the extruder through the flow passage. The diverter valve further includes a valve bolt having its axis arranged basically perpendicular in relation to the direction of flow of a liquid or a melt, with at least an additional flow passage, which can be oriented in alignment with the first flow passage of the valve housing and whose cross section is likewise constructed large enough to pass extruder screws arranged in the extruder through this second flow passage, whereby the valve bolt is arranged adjustably in the valve housing.