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. 21, 1978
Filed:
Dec. 08, 1975
Applicant:
Inventors:
Assignee:
Shoei Chemical Incorporated, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; C01G / ; B01F / ; B01J / ;
U.S. Cl.
CPC ...
96 9 / ; 423604 ; 23286 ; 366169 ;
Abstract
A method and apparatus for preparing uniformly-sized particles wherein a first liquid reactant is chemically reacted with a second liquid reactant to form precipitated particles of substantially uniform particle size which comprises forming substantially uniformly-sized droplets of one of said reactants and directing said droplets against the falling flow of the other of said reactants.