Ray Dean Shepherd

US Patent:

7991931, Aug 2, 2011

Filed:

May 2, 2007

Appl. No.:

11/743209

Inventors:

Glen E. Schmidt - Bartlesville OK, US
Michel J. Baillargeon - Bartlesville OK, US
Robert Farmer - Bartlesville OK, US
Gregory J. Golden - Owasso OK, US
Ray Shepherd - Tulsa OK, US

Assignee:

Siemens Industry, Inc. - Alpharetta GA

International Classification:

G06F 13/00
H01C 7/12
G06F 13/42

US Classification:

710100, 710 72, 710104, 710105, 710106, 361119

Abstract:

The present invention is a novel device, system, and method for data transport and bus architecture. According to an exemplary embodiment of the present invention, the bus architecture may comprise of a continuous serial bus that may be incorporated into a process control sample system to provide an intrinsically safe and efficient system. An alternative exemplary embodiment, in an intrinsically safe control sampling system, a data transport device may be used to couple sampling controls and analyzers. An exemplary embodiment of the present invention may contain an access controller providing a protocol bridge for an intrinsically safe control sampling system to couple sampling controls and analyzers.

US Patent:

20080189456, Aug 7, 2008

Filed:

Jan 30, 2008

Appl. No.:

12/022375

Inventors:

Glen E. Schmidt - Bartlesville OK, US
Gregory J. Golden - Owasso OK, US
Bob Farmer - Bartlesville OK, US
Michel Baillargeon - Bartlesville OK, US
Ray Shepherd - Tulsa OK, US
Thomas Burghardt - Schwabach, DE

International Classification:

G06F 13/42

US Classification:

710106

Abstract:

A system and method for providing a serial communication bus is disclosed. A serial communication bus connects multiple footprint devices, such as electronic sensors in a process control sample system. The footprint devices can utilize various footprint device specific communication protocols. Multiple tophat devices act as general I/O ports for connecting with the footprint devices. Each tophat device identifies the footprint device specific communication protocol of a connected footprint device, converts outputs signals transmitted from the connected footprint device from the footprint device specific communication protocol of the footprint device to a standard bus communication protocol, and converts input signals directed to the connected footprint device from the standard bus communication protocol to the footprint device specific communication protocol of the footprint device. The serial communication bus connects the tophat devices and transmits input and output signals using the standard bus communication protocol.

US Patent:

20120242489, Sep 27, 2012

Filed:

Mar 25, 2011

Appl. No.:

13/072036

Inventors:

Aosheng WANG - Eden Prairies MN, US
Ray Dean Shepherd - Tulsa OK, US

Assignee:

Siemens Aktiengesellschaft - Munchen

International Classification:

G08B 17/10
G01N 30/02

US Classification:

340632, 73 2336, 73 2335

Abstract:

The invention relates to a method for processing chromatograms obtained by a process gas chromatograph in a plurality of subsequent measurements of a process stream. To reduce the computational effort and time while maintaining high accuracy, the method comprises collecting a set of chromatograms from a predefined number of subsequent measurements, selecting one of the chromatograms of the set as a reference chromatogram, aligning solely by cross-correlation and shifting each other of the collected chromatograms to the selected chromatogram, performing a multivariate analysis on the aligned chromatograms to extract systematic information, performing, based on the information, a peak analysis on the latest chromatogram of the set and outputting the result of the peak analysis, and for a new measurement, excluding the chromatogram of the oldest measurement from the set of chromatograms, including the chromatogram from the new measurement and continuing with the step of selecting one of the chromatograms of the set as a reference chromatogram

US Patent:

20130239656, Sep 19, 2013

Filed:

Mar 14, 2012

Appl. No.:

13/420233

Inventors:

Aosheng Wang - Eden Prairie MN, US
Ray Dean Shepherd - Tulsa OK, US
Christoph Klawun - Bartlesville OK, US

Assignee:

Siemens Aktiengesellschaft - Muenchen

International Classification:

G01N 30/02

US Classification:

73 234

Abstract:

A gas chromatograph comprising a separation column for separating components of a sample of a gas mixture fed through the separation column by a carrier gas, a thermal conductivity detector including a sensing element arranged downstream from the separation column and configured to detect the separated components in a non-destructive manner and to generate a detector signal in response the detected components, an evaluation unit for evaluating the detector signals to determine concentrations of the detected components, and a further thermal conductivity detector including a further sensing element arranged immediately downstream or upstream from the thermal conductivity detector and configured to detect the separated components and to generate a further detector signal in response to the detected components, where the evaluation unit is configured to compare the detector signal with the further detector signal to recognize and signal a loss of or improper detection by the thermal conductivity detector.

US Patent:

20140076023, Mar 20, 2014

Filed:

Sep 4, 2013

Appl. No.:

14/018185

Inventors:

Aosheng WANG - Eden Prairies MN, US
Ray Dean SHEPHERD - Tulsa OK, US
Christoph KLAWUN - Bartlesville OK, US

International Classification:

G01N 30/66

US Classification:

73 234

Abstract:

A gas chromatograph in which components of a sample of a gas mixture are separated via a separation column, a sensing element of a thermal conductivity detector is operated at a first temperature to detect separated components and to generate a detector signal in response to detected components, an evaluation unit evaluates detector signals and determines concentrations of detected components, a further sensing element of a further thermal conductivity detector is operated at a second temperature different from the first temperature, to detect gas components of widely different concentration ranges at high sensitivity, where the thermal conductivity detectors are calibrated for different concentration ranges, and the evaluation unit compares the detector signal with the detector signal of the further thermal conductivity detector to output a concentration value determined from the signal of the thermal conductivity detector calibrated for the measured component concentration.