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:
Jun. 25, 1996
Filed:
Aug. 03, 1994
Philip J Wyatt, Santa Barbara, CA (US);
Gary R Janik, Santa Barbara, CA (US);
Wyatt Technology Corporation, Santa Barbara, CA (US);
Abstract
A modified light scattering cell, and associated method, whereby an eluant of very small dimension transverse to its direction of flow is entrained successively by two sheath flows and presented to a fine light beam that illuminates the entrained eluant as it flows through the light beam. The light scattered by the entrained eluant is collected by detectors outside of a transparent flow cell enveloping the sheath flow entrained eluant. The windows of the transparent flow cell through which the light beam enters and leaves are far removed from the scattering eluant and kept clear of eluant-contained particles by means of flow components that will form subsequently one of the eluant sheath flows employed. The eluant source is typically from a fine capillary such as found in capillary electrophoresis, capillary hydrodynamic fractionation, and flow cytometry applications.