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.

Date of Patent:
Aug. 23, 2011

Filed:

Mar. 15, 2007
Applicants:

David F. Purvis, Newark, OH (US);

Byron L. Bemis, Newark, OH (US);

Inventors:

David F. Purvis, Newark, OH (US);

Byron L. Bemis, Newark, OH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 37/075 (2006.01); C03B 37/095 (2006.01);
U.S. Cl.
CPC ...
Abstract

A filament forming apparatus has a bushing that includes a high palladium content screen along with structural components and non-structural components. The structural components are formed of a first material having a high creep strength and the ability to withstand corrosive effects of molten mineral materials. The non-structural components are formed of at least a second material that is different from the first material.


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