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. 30, 1976
Filed:
Dec. 13, 1974
George M Cunningham, Horseheads, NY (US);
Corning Glass Works, Corning, NY (US);
Abstract
A mask or face plate, having an orifice or opening formed therethrough of desired size and configuration, is positioned against the discharge face of an extrusion die. The mask restricts the flow of extrudable material through the die so that such material will conform to the size and configuration of the opening or orifice formed through the mask. A recess formed in the face of the mask adjacent the discharge face of the extrusion die, surrounds the orifice formed therethrough, and communicates with said orifice by means of a gap formed in the inlet face of the mask between said recess and said orifice. The recessed or scalloped mask has particular utility when utilized with an extrusion die for forming cellular or honeycomb structures, in that the predetermined gap meters a controlled flow of additional batch material from the recess to the outer boundaries of the extruded honeycomb article passing through the orifice in said mask to encapsulate the honeycomb structure with a smooth uniform skin having improved isostatic crushing strength.