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:
Oct. 17, 1978
Filed:
Aug. 03, 1977
Applicant:
Inventors:
Jacques de Lautrec, Saint Gaudens, FR;
Jean-Francois Coste, Saint Gaudens, FR;
Assignee:
Societe Nationale Elf Aquitaine (Production), Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252361 ; 159D / ;
Abstract
A defoaming apparatus comprising a column having three levels, a lower level, an intermediate level, and an upper level. The foam to be broken is injected into the lower level with mud. A shaft in the intermediate level serves as an aspirator. Air or another gas is injected into the shaft and the vacuum thus produced pulls the foam upwardly. The foam is discharged from the shaft against vanes located in the upper level where upon the foam is broken into gas which is discharged and liquid which is recovered. Sediment from the foam is drawn off at the bottom of the apparatus.