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. 17, 1987
Filed:
Oct. 26, 1984
Applicant:
Inventor:
David R Friswell, Holliston, MA (US);
Assignee:
Zymark Corporation, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01L / ;
U.S. Cl.
CPC ...
436177 ; 436181 ; 422101 ; 159 / ; 159 161 ;
Abstract
An improved system for evaporating liquid to obtain solid residue where by small quantities of a solid are recovered from a first liquid medium and dissolved in another liquid medium. The invention comprises a receptacle for holding the liquid to be treated and structure which localizes entry of an evaporating, or carrier, gas along the wall of the receptacle as it moves downwardly and into contact with the material to be treated. Such localization of inlet gas also provides a relatively quiescent central zone in the receptacle through which exiting gas, carrying evaporated liquid, can be removed without disturbing the flow of inlet gas.