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. 26, 1996
Filed:
May. 25, 1995
Applicant:
Inventors:
Craig Wright, San Diego, CA (US);
Curt Torgerson, San Diego, CA (US);
Assignee:
Horiba Instruments, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
356336 ; 738655 ; 241 39 ; 356440 ;
Abstract
A dry particle analyzer includes a vibrating sieve cup drizzling particles downwardly with first, second, and third sheath air flows being provided to separate the particles from boundary walls and to form the drizzling particles into a columnated flow for optical analysis. The particles drop vertically as a drizzle with gravitational assistance from a bulk sample to an analysis chamber. Along the way to the analysis chamber, the particles are subjected to an interval of high air flow shear, and to high turbulence of the air flow to break up agglomerations of particles.