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:
May. 25, 1993
Filed:
Dec. 02, 1991
Clarence E Ford, Painted Post, NY (US);
Donald L Guile, Horseheads, NY (US);
Lucretia R Quatrini, Sayre, PA (US);
Corning Incorporated, Corning, NY (US);
Abstract
An improvement in a method and apparatus is provided in extruding a powder material to form an article, in which the material is passed through an extruder and then through a die, wherein the material is provided in the form of a mixture which includes a vehicle, the improvement comprising having one or more gear pumps in succession between the extruder and the die, so that the powder material passes through the gear pump(s) after it leaves the extruder and before it enters the die. The gear pump(s) can have one or more pair of gears which are arranged sequentially with respect to the flow of the material.