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:
Dec. 23, 1986
Filed:
Aug. 22, 1983
Applicant:
Inventor:
Marco Pierini, Genoa, IT;
Assignee:
Varian S.p.A., Turin, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04F / ;
U.S. Cl.
CPC ...
417 49 ; 204298 ;
Abstract
A sputter ion pump with a cathode having blades arranged radially adjacent the cylindrical hollow cells of the anode. This arrangement increases the probability of grazing collisions useful for the formation of fast inert gas molecules, particularly argon. This improves the pumping speed and the speed stability in time.