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. 24, 2013
Filed:
Jul. 11, 2011
Richard Moulds, Stockport, GB;
Kenneth R. Worthington, Cheshire, GB;
Eliot Powell, Staffordshire, GB;
Richard Moulds, Stockport, GB;
Kenneth R. Worthington, Cheshire, GB;
Eliot Powell, Staffordshire, GB;
Waters Technologies Corporation, Milford, MA (US);
Abstract
A capacitor assembly () for measuring the level of radio frequency voltage in a mass spectrometer. The assembly () includes an RF sensing capacitor () with first and second capacitor plates (), a rectifying circuit () and a vacuum housing feedthrough (), all of which are mounted within a vacuum enclosure of the mass spectrometer. The first capacitor plate () is adapted for connection to a voltage source and mounted within the enclosure by first insulating spacers (). The second capacitor plate () is nested within the first insulating spacers () and mounted within the enclosure by second insulating spacers (). The rectifying circuit () is electrically connected to the second capacitor plate () and to the vacuum housing feedthrough ().