Paul I Vouros

US Patent:

7812305, Oct 12, 2010

Filed:

Jun 28, 2007

Appl. No.:

11/823666

Inventors:

Raanan A. Miller - Chestnut Hill MA, US
Erkinjon G. Nazarov - Lexington MA, US
Paul Vouros - Concord MA, US

Assignee:

Sionex Corporation - Bedford MA
Northeastern University - Boston MA

International Classification:

H01J 49/40

US Classification:

250287, 250281, 250282

Abstract:

The invention relates generally to systems, methods and devices for analyzing samples and, more particularly, to systems using tandem differential mobility spectrometers in combination with a mass analyzer to enhance the analysis process of constituents of a sample.

US Patent:

8384024, Feb 26, 2013

Filed:

Sep 1, 2010

Appl. No.:

12/873493

Inventors:

Raanan A. Miller - Chestnut Hill MA, US
Erkinjon G. Nazarov - Lexington MA, US
Paul Vouros - Concord MA, US

Assignee:

DH Technologies Development Pte. Ltd. - Singapore

International Classification:

H01J 49/04

US Classification:

250288, 250281, 250282, 250283, 250287

Abstract:

The invention relates generally to systems, methods and devices for analyzing samples and, more particularly, to systems using a differential mobility spectrometer in combination with a mass analyzer to enhance the analysis process of constituents of a sample.

US Patent:

8581178, Nov 12, 2013

Filed:

May 24, 2006

Appl. No.:

11/441305

Inventors:

Raanan A. Miller - Chestnut Hill MA, US
Erkinjon G. Nazarov - Lexington MA, US
Paul Vouros - Concord MA, US
Daren Levin - Apex NC, US

Assignee:

DH Technologies Development Pte. Ltd. - Singapore

International Classification:

B01D 59/44

US Classification:

250282, 250286, 250287

Abstract:

The invention relates generally to systems, methods and devices for analyzing samples and, more particularly, to systems using a mass analyzer in combination with a differential mobility spectrometer to enhance the analysis process of constituents of a sample.

US Patent:

20030034407, Feb 20, 2003

Filed:

Aug 8, 2002

Appl. No.:

10/215420

Inventors:

Eric Gangl - Somerville MA, US
Paul Vouros - Concord MA, US

International Classification:

B05B005/00

US Classification:

239/690000, 239/704000, 239/706000

Abstract:

The present invention is directed to a flow splitter that includes an outer fluid conduit for receiving an incoming fluid flow that is the bulk flow of effluent from a liquid chromatographic column, flowing at an input flow rate. The flow splitter further includes an inner fluid conduit coaxially mounted within the outer fluid conduit so that a portion of the incoming fluid is split off into the inner fluid conduit and flows into the input end thereof. The inner fluid conduit extends beyond the exterior of the outer fluid conduit to provide an output fluid flow having an output flow rate that is less than the input flow rate. The outer fluid conduit further includes a fluid outlet that provides an outlet for the portion of the incoming fluid that is not split by the inner fluid conduit. A restriction valve can be coupled to the fluid outlet to finely adjust the output flow rate. The input end of the inner fluid conduit is positioned so as to be substantially free of turbulence from the fluid outlet.