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. 21, 2000
Filed:
Dec. 28, 1998
Applicant:
Inventors:
Regis Vilagines, Vernaison, FR;
Christian Bratu, Saint Nom la Breteche, FR;
Florent Spettel, Neuville sur Saone, FR;
Assignee:
Institut Francais du Petrole, Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4151991 ;
Abstract
Multiphase fluid pumping or compression device comprising at least one group of blades (Gj) including for example a first (A.sub.1j) and a second (A.sub.2j) blade of tandem design whose geometric characteristics are determined to optimize the compression or the pumping of a multiphase fluid comprising at least one liquid phase and at least one gas phase.