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. 14, 2006
Filed:
Aug. 31, 2004
Stephen C. Davis, Ascot, AU;
Lee Earley, Mountain View, CA (US);
Mark Hardman, Sunnyvale, CA (US);
Adrian Land, San Carlos, CA (US);
Gershon Perelman, Cupertino, CA (US);
Stephen C. Davis, Ascot, AU;
Lee Earley, Mountain View, CA (US);
Mark Hardman, Sunnyvale, CA (US);
Adrian Land, San Carlos, CA (US);
Gershon Perelman, Cupertino, CA (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
An apparatus that comprises material which have different thermal expansion coefficients, combined in such a way that the length of the drift region is variant, and self adjusting with temperature. The adjustment is such as to compensate for the length changes resulting from thermal expansion or contraction in other ion optical elements, such that ions of substantially equivalent mass to charge ratios maintain a constant flight time though the system. This allows for use of standard construction methods for the ion optical elements.