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. 18, 1986
Filed:
Jul. 02, 1984
Applicant:
Inventors:
Assignee:
Societe Nationale Elf Aquitaine, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 72 ; 356246 ; 436 45 ;
Abstract
The present invention relates to a fractionating and observation cel of a liquid analysis device comprising a rotor, a central distribution cup or container for said liquid, and an assembly of cells on the periphery of the rotor, wherein the cells and the duct are formed by welding of two plastic pieces comprising said rotor, the liquid feed and gas evacuation duct is provided by the space existing between the two plastic pieces welded to each other by two welding seams along the edges of each duct, the opposite faces of the said pieces that constitute the duct with the said seams being left rough from molding.