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:
Mar. 24, 1992
Filed:
Oct. 12, 1990
Christopher Bull, Bethesda, MD (US);
Other;
Abstract
An improvement in rapid mixers for stopped flow spectrophotometers is disclosed. This improvement involves the dispersion of one solution from the bore of a disperser through notches into a flowing sheath of a second solution. The dispersed mixture is then mixed by passage through a mixer made up of a series of mixing rings with lands and grooves. The lands and grooves of adjoining rings are aligned so grooves are adjacent to lands, thus providing maximum mixing. The ratio of volumes of solutions mixed may vary from 1:1 to 40:1 by varying the number and size of notches in the end of the disperser tube. The viscosity ratio of the solutions mixed may vary from 1:1 to 100:1. Complete (greater than 99%) mixing occurs in less than one millisecond.