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:
Nov. 11, 2003
Filed:
Jan. 22, 2001
Applicant:
Inventor:
Charles William Russ, IV, Sunnyvale, CA (US);
Assignee:
Agilent Technologies, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 5/944 ; H01J 4/900 ;
U.S. Cl.
CPC ...
B01D 5/944 ; H01J 4/900 ;
Abstract
An apparatus for delivering ions between vacuum stages. The apparatus includes a concave electrode ion pipe originating in a first vacuum stage and terminating in a second vacuum stage. The design of the concave electrode ion pipe provides for transport of ions over long distances without substantial loss of the ions while at the same time restricting overall gas flow. The invention allows for the elimination of vacuum stages or a reduction in vacuum pumping speed(s) if the same number of vacuum stages is employed.