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.

Date of Patent:
Apr. 19, 2016

Filed:

Oct. 27, 2009
Applicant:

Manfred Berndt, Waldbronn, DE;

Inventor:

Manfred Berndt, Waldbronn, DE;

Assignee:

Agilent Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/07 (2006.01); F16K 11/074 (2006.01); F16K 25/00 (2006.01); G01N 30/20 (2006.01); G01N 35/10 (2006.01); B01D 15/16 (2006.01);
U.S. Cl.
CPC ...
F16K 11/074 (2013.01); F16K 25/005 (2013.01); G01N 30/20 (2013.01); G01N 35/1097 (2013.01); B01D 15/16 (2013.01); G01N 2030/202 (2013.01); Y10T 137/86863 (2015.04);
Abstract

A shear valve, for use in a high performance liquid chromatography system, comprises a first shear valve member and a second shear valve member. At least one of the first and second shear valve members is adapted to be moved with respect to the other. One of the first and second shear valve members comprises a plurality of ports, and the other comprises at least one fluid path for fluidly coupling respective ones of the ports in dependency on a relative movement position of the first and second shear valve members with respect to each other. The first shear valve member is at least partially coated with or comprised of silicon carbide.


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