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:
Jul. 06, 1976
Filed:
Mar. 07, 1975
Applicant:
Inventor:
Ferris C Standiford, Greenbank, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
159 / ; 159 / ; 159 46 ; 202174 ;
Abstract
A multiple effect evaporator in which the feed is progressively preheated in an indirect falling film preheater by vapors from the lower temperature effects and then further preheated by direct contact with vapors from higher temperature effects, said preheated feed being degassed during said direct contact preheating, prior to evaporation.