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:
Jun. 12, 1990
Filed:
Aug. 23, 1988
Applicant:
Inventors:
Eric P Muntz, Pasadena, CA (US);
John W Brook, Northport, NY (US);
Vincent S Calia, Greenlawn, NY (US);
Assignee:
Grumman Aerospace Corporation, Bethpage, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05H / ;
U.S. Cl.
CPC ...
250251 ;
Abstract
A beam of negatively charged ions is neutralized by impinging jets which dislodge elctrode electrons from the ions. Gas jets are created by orifices circumferentially located around a ring. The symmetrical radial distribution of the orifices does not create a net radial thrust on the ring, which is an important consideration in low-gravity outer space. Further, maximized gas dynamics creates a neutralized beam with a uniform gas density at the exit thereof and an optimized neutralized ion fraction, as compared with the population of ions in the introduced beam.