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:
Oct. 15, 2002
Filed:
Jun. 21, 1999
Horst Rache, Delmenhorst, DE;
Bruker Daltonik GmbH, Bremen, DE;
Abstract
In a time-of-flight mass spectrometer, the entire flight tube, which is generally manufactured of stainless steel due to the necessary vacuum characteristics and is subject to a relatively high degree of thermal expansion, together with the spectrometer electronics is enclosed in an electromagnetic shielding box. A flow control mechanism, which can consist of a fan, draws air over the electronics, heating the air. The heated air is then admixed with fresh air and drawn over the flight tube maintaining it very precisely at a constant temperature. In addition, the electronics may also be kept at a constant temperature by a separate air stream guidance and control mechanism.