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. 28, 1997
Filed:
May. 01, 1995
Kimberly A Prather, Riverside, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
The invention provides an improved mass spectrometer apparatus, and related method, that characterizes aerosol particles, in real time, according not only to their chemical composition, but also to their size. This added information can be of critical importance when evaluating risks associated with aerosol particles of particular chemical composition. The apparatus achieves this beneficial result in a reliable fashion by first detecting the presence and size of individual aerosol particles moving along a predetermined particle path and by then directing a pulse of high-intensity light at the particle, to desorb and ionize the particle, for analysis of its chemical composition.