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:
Jul. 15, 2014
Filed:
Aug. 04, 2010
Tobias Holenstein, Kuessnacht am Rigi, CH;
Thomas Engel, Buonas, CH;
Thomas Sidler, Huenenberg, CH;
Adelrich Zuppiger, Siebnen, CH;
Carsten Haack, Huenenberg See, CH;
Alessandro D'amore, Wohlen, CH;
Michael Meyberg, Rotkreuz, CH;
Tobias Greuter, Lucerne, CH;
Roland Stoeckli, Boswil, CH;
Tobias Holenstein, Kuessnacht am Rigi, CH;
Thomas Engel, Buonas, CH;
Thomas Sidler, Huenenberg, CH;
Adelrich Zuppiger, Siebnen, CH;
Carsten Haack, Huenenberg See, CH;
Alessandro D'Amore, Wohlen, CH;
Michael Meyberg, Rotkreuz, CH;
Tobias Greuter, Lucerne, CH;
Roland Stoeckli, Boswil, CH;
Roche Diagnostics Operations, Inc, Indianapolis, IN (US);
Abstract
A sample preparation dosing unit for liquid dosing is provided comprising an inlet port and an outlet port fluidically coupling the sample preparation dosing unit to a supply and target, respectively; a pump, fluidically arranged between the inlet port and the outlet port; an outlet flow restrictor with an outlet flow resistance, fluidically arranged between a pump outlet and outlet port; and a control arrangement with a branch, a control valve, and a control flow restrictor with a control flow resistance. The branch divides the flow at the pump outlet into an outlet flow through the outlet flow restrictor and into a control flow through the control flow restrictor. The control flow downstream of the control flow restrictor is fed, depending on the state of the control valve, either into the outlet port thereby merging with the outlet flow downstream of the outlet flow restrictor, or into a bypass conduit.