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:
Sep. 08, 2015
Filed:
Aug. 22, 2011
Jean-luc Dorier, Bussigny, CH;
Fabio Demarco, Lausanne, CH;
Edmund Halasz, Orbe, CH;
THERMO FISHER SCIENTIFIC (ECUBLENS) SARL, Ecublens, CH;
Abstract
A spark chamber for an optical emission analyser, comprising: a gas inlet located on a first side of the spark chamber for supplying a gas into the spark chamber; and a gas outlet located on a second side of the spark chamber arranged to convey the gas from the spark chamber; wherein an elongated electrode having an electrode axis generally along the direction of elongation is located within the spark chamber; and wherein: the first and second sides of the spark chamber lie at either side of the elongated electrode in directions generally perpendicular to the electrode axis; there is a gas flow axis through the spark chamber between the gas inlet and the gas outlet; and on passing along the gas flow axis from the gas inlet to the gas outlet the unobstructed internal cross sectional area of the spark chamber perpendicular to the gas flow axis remains constant to within a factor A, wherein A lies between 1.0 and 2.0