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:
Mar. 22, 2016
Filed:
Oct. 22, 2010
Applicant:
Joachim-richard Wagner, Waldbronn, DE;
Inventor:
Joachim-Richard Wagner, Waldbronn, DE;
Assignee:
Agilent Technologies, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/36 (2006.01); F16K 1/42 (2006.01); F16K 25/00 (2006.01); G01N 30/32 (2006.01);
U.S. Cl.
CPC ...
G01N 30/36 (2013.01); F16K 1/42 (2013.01); F16K 25/005 (2013.01); G01N 2030/328 (2013.01);
Abstract
A valve for use in high-performance liquid chromatography has a spherical seat and a ball that, when it abuts against the seat, constrains a fluid from flowing through the valve and is capable of moving axially in order to allow the fluid to flow through the valve. The spherical seat has beveled outer faces in order that a force acting on the valve along the axial direction will generate a force acting on the ball. The inclination of the beveled outer face is such that a force acting on the ball counteracts a force exerted on the spherical seat by the ball and essentially compensates it.