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:
Jan. 18, 1994
Filed:
Sep. 16, 1992
Applicant:
Inventor:
Manfred Karl, Leipzig, DE;
Assignee:
Bruker Saxonia Analytik GmbH, Leipzig, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250287 ; 250286 ; 250281 ; 250282 ;
Abstract
The invention concerns a gas tight drift chamber of an ion mobility spectrometer with ring electrodes separated by insulating rings. In order to simplify the construction and to improve the mechanical and electrical stability, the ring electrodes have a z-shaped cross section, into which the insulating rings with the rectangular cross sections are fitted. Electrodes and insulating rings are connected is in a gas-tight manner. The high voltage divider consists either of individual SMD resistors which are soldered or vapor deposited to the outside or of a highly resistively coated ceramic rod.