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:
Oct. 17, 2017
Filed:
Jul. 27, 2011
Klaus Witt, Keltern, DE;
Konstantin Shoykhet, Karlsruhe, DE;
Hans-georg Haertl, Karlsruhe, DE;
Agilent Technologies, Inc., Santa Clara, CA (US);
Abstract
A fluid supply system () adapted for metering two or more fluids in controlled proportions and for supplying a resultant mixture, the fluid supply system () comprising a plurality of solvent supply lines (to), each fluidically connected with a fluid source (to) providing a respective fluid, a pumping unit () comprising a reciprocating element () adapted for intaking fluid supplied at an inlet of the pumping unit () and for supplying the pressurized fluid at an outlet of the pumping unit (), wherein the pumping unit () is adapted for taking in fluids from selected solvent supply lines (to) and for supplying a pressurized mixture of the fluids at its outlet, a proportioning valve () interposed between the solvent supply lines (to) and the inlet of the pumping unit (), the proportioning valve () adapted for modulating solvent composition by sequentially coupling selected ones of the solvent supply lines (to) with the inlet of the pumping unit (), and a longitudinal mixing unit () adapted for mixing longitudinally subsequent sections of the fluids so as to modify their succession in flow direction.