Christopher D O'Brien

US Patent:

6916564, Jul 12, 2005

Filed:

Dec 31, 2002

Appl. No.:

10/335538

Inventors:

Lawrence G. Clawson - Dover MA, US
Christopher J. O'Brien - Watertown MA, US
Mark R. Hagan - Cambridge MA, US

Assignee:

Nuvera Fuel Cells, Inc. - Cambridge MA

International Classification:

H01M008/04
H01M008/12
H01M002/00
H01M002/02

US Classification:

429 17, 429 26, 429 34

Abstract:

A hydrogen fuel cell power system having improved efficiency comprises a fuel cell, a source of hydrogen gas, a compressor for creating a pressurized air stream, and a liquid supply which is heated by waste heat form the power system and evaporates into the pressurized air stream to produce a pressurized air and steam mixture. The pressurized air/steam mixture, which is preferably used as the oxidant in the fuel cell, is combusted with fuel in a burner to produce a high-temperature steam-laden exhaust stream. The high-temperature steam-laden exhaust stream drives an expander to produce a power output, and a power take-off from the expander uses the expander power to, for instance, drive an electrical generator, or drive other system components. The evaporation of liquid can take place external to the fuel cell, or can take place directly within the fuel cell, preferably using a cooling liquid that is directly injected into the fuel cell. The fuel cell power system advantageously uses the low-temperature waste heat of the fuel cell to evaporate liquid into the pressurized air, resulting in a steam/air mixture having a relatively large expansion potential.

US Patent:

7228310, Jun 5, 2007

Filed:

Mar 12, 2002

Appl. No.:

10/095384

Inventors:

Christopher O'Brien - New Britain PA, US

Assignee:

Siemens Energy & Automation, Inc. - Alpharetta GA

International Classification:

G06F 15/16
G06F 17/30

US Classification:

707102, 707 2, 709203, 709219

Abstract:

A data mining system directed to industrial applications gathers data remotely from a plurality of industrial plants or sites and makes the gathered data available over a network to a user running a data mining application or on-line analytical process means to generate and, if desired, visualize results. Access to a service of this nature may be made available in connection with an on-line service, such as a website, that also provides access to industrial products and services. Subscribers to the on-line service, who may be charged a fee to subscribe, may be given an incentive to continue their subscription in the form of an offer of free or reduced-cost access to the above-described data mining system during their on-line service sessions.

US Patent:

8416813, Apr 9, 2013

Filed:

Apr 29, 2009

Appl. No.:

12/432023

Inventors:

Nirav J. Modi - Elmhurst IL, US
Robert E. Bland - Schaumburg IL, US
Christopher V. O'Brien - North Aurora IL, US

Assignee:

Tellabs Operations, Inc. - Naperville IL

International Classification:

H04J 3/06

US Classification:

370516

Abstract:

An apparatus and method for managing clock domain(s) crossing several communication networks are disclosed. In one embodiment, a process capable of managing clock domains receives a data stream over a circuit emulation service (“CES”). Upon storing the data stream in a traffic buffer, the process selects a first clock domain for processing the data stream in the traffic buffer. For example, the process is capable of using the first clock domain to process and/or empty a jitter buffer, which stores CES data packets. The traffic buffer is monitored and the first clock domain can be replaced with a second clock domain if the storage capacity of the traffic buffer indicates that a different clock domain is needed.

US Patent:

8503458, Aug 6, 2013

Filed:

Apr 29, 2009

Appl. No.:

12/432056

Inventors:

Nirav J. Modi - Elmhurst IL, US
Robert E. Bland - Schaumburg IL, US
Christopher V. O'Brien - North Aurora IL, US

Assignee:

Tellabs Operations, Inc. - Naperville IL

International Classification:

H04L 12/28

US Classification:

37039553

Abstract:

An apparatus and method for managing and characterizing clock domains in multi-domain networks are disclosed. A process of clock domain management is capable of receiving a data packet or data stream traveling across CES circuit. Upon obtaining a clock domain hierarchy stored in a storage location, the process identifies a clock frequency in the clock domain hierarchy in accordance with the CES circuit. The clock domain hierarchy, in one embodiment, is a searchable database containing information relating to clock domains. The clock frequency is subsequently assigned to a packet processing unit for data processing.

US Patent:

20020123985, Sep 5, 2002

Filed:

Mar 12, 2002

Appl. No.:

10/096518

Inventors:

Christopher O'Brien - New Britain PA, US

International Classification:

G06F007/00

US Classification:

707/001000

Abstract:

A data mining system directed to industrial applications gathers data remotely from a plurality of industrial plants or sites and makes the gathered data available over a network to a user running a data mining application or on-line analytical process means to generate and, if desired, visualize results. Access to a service of this nature may be made available in connection with an on-line service, such as a website, that also provides access to industrial products and services. Subscribers to the on-line service, who may be charged a fee to subscribe, may be given an incentive to continue their subscription in the form of an offer of free or reduced-cost access to the above-described data mining system during their on-line service sessions.

US Patent:

20020123996, Sep 5, 2002

Filed:

Feb 6, 2002

Appl. No.:

10/068614

Inventors:

Christopher O'Brien - New Britain PA, US

International Classification:

G06F007/00

US Classification:

707/006000

Abstract:

A data mining system directed to industrial applications gathers data remotely from a plurality of industrial plants or sites and makes the gathered data available over a network to a user running a data mining application or on-line analytical process means to generate and, if desired, visualize results. Access to a service of this nature may be made available in connection with an on-line service, such as a website, that also provides access to industrial products and services. Subscribers to the on-line service, who may be charged a fee to subscribe, may be given an incentive to continue their subscription in the form of an offer of free or reduced-cost access to the above-described data mining system during their on-line service sessions.

US Patent:

20020129018, Sep 12, 2002

Filed:

Mar 12, 2002

Appl. No.:

10/096517

Inventors:

Christopher O'Brien - New Britain PA, US

International Classification:

G06F007/00

US Classification:

707/006000

Abstract:

A data mining system directed to industrial applications gathers data remotely from a plurality of industrial plants or sites and makes the gathered data available over a network to a user running a data mining application or on-line analytical process means to generate and, if desired, visualize results. Access to a service of this nature may be made available in connection with an on-line service, such as a website, that also provides access to industrial products and services. Subscribers to the on-line service, who may be charged a fee to subscribe, may be given an incentive to continue their subscription in the form of an offer of free or reduced-cost access to the above-described data mining system during their on-line service sessions.

US Patent:

20020129019, Sep 12, 2002

Filed:

Mar 12, 2002

Appl. No.:

10/096519

Inventors:

Christopher O'Brien - New Britain PA, US

International Classification:

G06F007/00

US Classification:

707/006000

Abstract:

A data mining system directed to industrial applications gathers data remotely from a plurality of industrial plants or sites and makes the gathered data available over a network to a user running a data mining application or on-line analytical process means to generate and, if desired, visualize results. Access to a service of this nature may be made available in connection with an on-line service, such as a website, that also provides access to industrial products and services. Subscribers to the on-line service, who may be charged a fee to subscribe, may be given an incentive to continue their subscription in the form of an offer of free or reduced-cost access to the above-described data mining system during their on-line service sessions.