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:
Sep. 18, 1990
Filed:
May. 21, 1987
Applicant:
Inventors:
Jean-Louis Romette, Orrouy, FR;
Joel G Fourreau, Compiegne, FR;
Assignee:
Centre National de la Recherche Scientifique, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422100 ; 422 81 ; 422102 ; 422103 ; 422104 ; 436 54 ; 436180 ; 13762512 ; 13762565 ; 13762567 ; 13762526 ; 251 92 ; 251325 ; 7386373 ; 7386383 ; 7386418 ; 7386463 ;
Abstract
A device for preserving sterility during the taking of samples for analysis from culture medium containers. This device comprises a holder containing a sampling chamber which encloses a sliding piston fitted at one end with a toric cavity for removal of the sample for analysis, and a dilution chamber linked to the first chamber by a duct. The second chamber is divided into two parts by a central bearing and contains two sliding pistons which may abut respectively the opposite sides of the bearing. The second chamber comprises an inlet for the dilution solvent.