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:
Aug. 28, 1979
Filed:
Mar. 27, 1978
Applicant:
Inventors:
Hans-Walter Brandt, Unter-Odenthal, DE;
Gunter Schnabel, Wermelskirchen, DE;
Karl-Heinz Muller, Bergisch-Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7342 / ;
Abstract
The combination of valves consists of a double passage cross-over spherical valve with which at least one other single passage spherical valve is connected in series. The passage of the cross-over spherical valve under high pressure is connected to the partition column of a gas chromatograph or liquid chromatograph while the other passage is intended for introducing the sample and is under atmospheric pressure when the sample is injected.