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:
Aug. 19, 1986
Filed:
Oct. 10, 1984
Applicant:
Inventors:
Arthur N Curren, North Ridgeville, OH (US);
Kenneth A Jensen, Bay Village, OH (US);
Robert F Roman, Brookpark, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; C23C / ;
U.S. Cl.
CPC ...
315-538 ; 2041 / ; 2041 / ; 204298 ; 313106 ; 313107 ; 427 39 ; 427 41 ;
Abstract
A very thin layer of highly textured carbon is applied to a copper surface by a triode sputtering process. A carbon target 10 and a copper substrate 12 are simultaneously exposed to an argon plasma 14 in a vacuum chamber. The resulting carbon surface is characterized by a dense, random array of needle-like spires or peaks which extend perpendicularly from the copper surface. The coated copper is especially useful for electrode plates in multistage depressed collectors.