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:
Feb. 17, 1987
Filed:
Feb. 21, 1985
Applicant:
Inventors:
Richard D McLachlan, Midland, MI (US);
Ray W Chrisman, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356338 ; 356342 ;
Abstract
The concentration of larger particles in a suspension of relatively small and relatively large light scattering particles is determined by illuminating a zone of the suspension with light of such wavelength as to be scattered more efficiently by the larger particles than by the smaller particles. The scattered light is collected and its intensity measured. The value of the collected light intensity then is compared with the corresponding value of the same wavelength light scattered by corresponding suspensions containing known concentrations of particles.