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:
Feb. 22, 1977
Filed:
Jun. 25, 1974
George Sargent Janes, Lincoln, MA (US);
Richard H Levy, Boston, MA (US);
Lawrence A Levin, Beer Sheva, IL;
Jersey Nuclear-Avco Isotopes, Inc., Bellevue, WA (US);
Abstract
Frequency selective means, particularly for use in uranium enrichment by laser induced isotopically selective ionization to suppress unwanted lasing of the excited uranium medium. The frequency selective means, such as filters, are placed at intervals in a column of laser illuminated uranium vapor and are transmissive to the illuminating laser frequencies but nontransmissive to frequencies at which population inversions exist in the excited uranium. The filters limit the path length and correspondingly the gain in the excited uranium to prevent high intensity lasing by the uranium itself.