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. 29, 1998
Filed:
Jul. 24, 1997
Applicant:
Inventor:
Thorald Horst Bergmann, D-82441 Ohlstadt, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250287 ;
Abstract
An MS/MS-time-of-flight mass-spectrometer for colliding ions with the molecules or atoms of some collision gas. In order to assign the fragment ions to their respective parent ions, some ion selecting mechanism such as an ion gate must be used to preselect one specific mass of the primary ion spectrum. Usually the combination of both elements, a collision cell and an ion selector will need so much space that the size of the mass-spectrometer will increase, also reducing its sensitivity. This effect can be avoided, by integrating ion selector and collision cell into one unit.