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:
Sep. 14, 2004
Filed:
May. 11, 2001
Denso Corporation, Kariya, JP;
Abstract
An extrusion molding apparatus capable of improving the extrusion rate of the ceramic material without a major reconstruction of a drive system is disclosed. The extrusion molding apparatus comprises screw extruders ( ) including housings ( ) having screws ( ) built therein, wherein the ceramic material introduced into the housings ( ), respectively, is extruded by way of the forward end extrusion ports by rotating the screws ( ). The screws ( ) built in the screw extruders ( ), respectively, include pressure portions ( ) with the feed rate per revolution progressively decreased toward the forward end extrusion port, and extended portions ( ) with the feed rate per revolution progressively increased toward the forward end extrusion port.