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. 03, 1992
Filed:
Dec. 12, 1991
Applicant:
Inventors:
John R Chapman, Cheshire, GB;
David S Jones, Cheshire, GB;
Assignee:
Kratos Analytical Limited, Urmston, Manchester, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250288 ; 250281 ; 2504 / ;
Abstract
An ion source for a mass spectrometer has a continuous flow probe (FIG. 2) having a mesh defining a surface, a capillary for supplying liquid sample to the surface and a porous body disposed at the periphery of the mesh. An ion source generates a beam of ionising radiation to which sample supplied to the surface is exposed. Sample supplied by the inlet tube spreads across the surface and surplus sample reaching the periphery of the mesh is absorbed by the porous body.