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:
Dec. 06, 2011
Filed:
Mar. 16, 2009
Shinzo Hayashi, Obu, JP;
Shinzo Hayashi, Obu, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
The clay extruder includes a drumhaving a screwhaving a rotary shaft, a spiral rotary bladefor feeding the clay under pressure while kneading the clay fed into the screw, a pressure raising portionto feed the clay under pressure while kneading the clay, and a rectifying portionprovided on the side of an extrusion portin the drumto rectify the clay into a columnar shape. The rectifying portionhas a rectifying rotary bladewhose intervals being longer than that of the rotary blade; an angle formed between the face on the side of the extrusion port in a sectional shape of the rectifying rotary blade cut along the central line of the rotary shaftand the central line gradually decreases, as the rectifying rotary blade comes close to the extrusion port.