US2892740.pdf (804.46 kB)

Thermionic emitter and method of making same

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posted on 2016-06-07, 00:00 authored by Edward A. Coomes, Fay E. Gifford

This invention relates to an improved thermionic emitter and to a method for making this emitter, and, more particularly, to filaments of refractory metal and a method for making these filaments.

History

Patent Number

US 2892740 B2

Other Application

663,007

USPTO Link

http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/2892740

Inventor

Edward A. Coomes Fay E. Gifford

Inventor from Local Institution

Edward A. Coomes

Assignee

University of Notre Dame Du Lac

Date Modified

2016-06-07

Language

English

Claims

17

Publisher

United States Patent and Trademark Office

Cooperative Patent Classification Codes

H01J 1/15 (20130101); H01J 9/04 (20130101)

Contributor

Edward A. Coomes

International Patent Classification Codes

H01J 1/15 (20060101); H01J 9/04 (20060101); H01J 1/13 (20060101)

US Patent Classification Codes

313/341; 117/7; 117/921; 117/928; 148/423;

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CC BY 4.0

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