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. 10, 1993
Filed:
Mar. 24, 1992
Ram Avida, Omer, IL;
Menahem Friedman, Omer, IL;
Asaf Algom, Metar, IL;
Avner Matmor, Omer, IL;
Zeev Karpas, Omer, IL;
Oded Shahal, Beer-Sheva, IL;
State of Israel, Atomic Energy Commission Research Center Negev, Beer-Sheva, IL;
Abstract
In an ion mobility spectrometer comprising a spectrometer tube with an ion hutter, an ionization source within a reaction chamber, and a drift chamber, the improvement comprises providing in or around the said drift tube a plurality of conducting segments, across which an electric field is applied, the said conducting segments being separated from one another by insulating spacers, wherein the ratio between the width of the insulating spacers to the width of the conducting segments is between 2:1 and 1:1, preferably about 1.5:1.