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. 29, 1990
Filed:
Jan. 22, 1990
Applicant:
Inventors:
Louis E Branovich, Howell, NJ (US);
Bernard Smith, Ocean, NJ (US);
Gerard L Freeman, Freehold, NJ (US);
Eckart Donald W, Wall, NJ (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 19 ; 75232 ; 75234 ; 75235 ; 252644 ; 264-05 ; 419 27 ; 419 28 ; 419 29 ; 419 33 ; 419 39 ; 419 58 ; 420-1 ; 445 46 ; 445 50 ;
Abstract
A cathode is made from tungsten powder using as an impregnant the product rmed from adding about 1 mole of a member selected from the group consisting of zirconium, zirconium dioxide, hafnium, hafnium dioxide, uranium, uranium dioxide, titanium, and titanium dioxide to about 50 to about 100 moles of a compound selected from the group consisting of Ba.sub.3 Al.sub.2 O.sub.6, Ba.sub.3 WO.sub.6, and Ba.sub.4 Al.sub.2 O.sub.7.