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:
Jul. 14, 1981
Filed:
Jun. 12, 1979
Applicant:
Inventors:
Sei Ozaki, Nagoya, JP;
Shuichi Otsu, Konan, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425198 ; 2642091 ; 425199 ; 4253 / ; 425380 ; 425462 ; 425464 ;
Abstract
Extrusion die assembly for forming honeycomb structures, which comprises a die having a discharge surface provided with grid-shaped slits for discharging a honeycomb shaped body and an inlet surface provided with a plurality of independent feed inlets, a mask having an orifice for determining the outer shape and dimension of the extruded honeycomb structure and a ring having an orifice for restraining supply of the batch material into the feed inlets at the periphery of the inlet surface.