Patents by Inventor Andrew Critchley

Andrew Critchley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reductant decomposition system
    Patent number: 9849424
    Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: December 26, 2017
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Debbie Davidson, Duncan Engeham, Piotr Uban, David Elsey, Z. Gerald Liu, Kenneth Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James Goss
  • Seal assembly
    Patent number: 9488280
    Abstract: A seal assembly comprises a first ring and a second ring which are rotatable relative to each other about a longitudinal axis (A-A). A first annular seal surface is formed on the first ring and is inclined with respect to the longitudinal axis and a second annular seal surface is formed on the second ring and is complementarily inclined to, and in abutment with, said first annular seal surface on the first ring. An annular groove is formed in at least one of said first and second seal rings adjacent to the seal surface on said seal ring and preferably a portion of the other ring projects into, or to a location adjacent to, the annular groove.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 8, 2016
    Assignee: Eriks Industrial Services Limited
    Inventor: Andrew Critchley
  • SEAL ASSEMBLY
    Publication number: 20150252902
    Abstract: A seal assembly comprises a first ring and a second ring which are rotatable relative to each other about a longitudinal axis (A-A). A first annular seal surface is formed on the first ring and is inclined with respect to the longitudinal axis and a second annular seal surface is formed on the second ring and is complementarily inclined to, and in abutment with, said first annular seal surface on the first ring. An annular groove is formed in at least one of said first and second seal rings adjacent to the seal surface on said seal ring and preferably a portion of the other ring projects into, or to a location adjacent to, the annular groove.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 10, 2015
    Inventor: Andrew CRITCHLEY
  • Reductant Decomposition System
    Publication number: 20140193318
    Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 10, 2014
    Applicant: Cummins Filtration IP, Inc.
    Inventors: Debbie Davidson, Duncan Engeham, Piotr Uban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James Goss
  • Reductant decomposition system
    Patent number: 8695330
    Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: April 15, 2014
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Debbie Davidson, Duncan Engeham, Piotr Urban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James R Goss
  • REDUCTANT DECOMPOSITION SYSTEM
    Publication number: 20110099978
    Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.
    Type: Application
    Filed: October 22, 2010
    Publication date: May 5, 2011
    Applicant: CUMMINS IP, INC
    Inventors: Debbie Davidson, Duncan Engeham, Piotr Urban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James R. Goss
  • Reliably transferring queued application messages
    Patent number: 7613830
    Abstract: The present invention extends to methods, systems, and computer program products for reliably and securely transferring queued application messages. Application messages are (e.g.,. binary or text) encoded and then encapsulated in transfer messages, enqueue messages, and dequeue responses such that composable protocol elements used in application messages can be reused in the transfer messages, enqueue messages, and dequeue responses. Transfer message headers are encoded and then encapsulated along with encoded application messages such that composable protocol elements used in transfer headers and application messages can be reused in the store and forward messages. Application messages, transfer messages, enqueue messages, dequeue responses, and store and forward messages can all be configured in accordance with the same messaging protocol, such as, for example, Simple Object Access Protocol.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: November 3, 2009
    Assignee: Microsoft Corporation
    Inventors: Krishnan Srinivasan, Craig Andrew Critchley, Uday Shanker Hegde, Alan S. Geller, David Owen Driver, Richard Douglas Hill, Rodney Thomas Limprecht
  • Reliably transferring queued application messages
    Patent number: 7613832
    Abstract: The present invention extends to methods, systems, and computer program products for reliably and securely transferring queued application messages. Application messages are (e.g., binary or text) encoded and then encapsulated in transfer messages, enqueue messages, and dequeue responses such that composable protocol elements used in application messages can be reused in the transfer messages, enqueue messages, and dequeue responses. Transfer message headers are encoded and then encapsulated along with encoded application messages such that composable protocol elements used in transfer headers and application messages can be reused in the store and forward messages. Application messages, transfer messages, enqueue messages, dequeue responses, and store and forward messages can all be configured in accordance with the same messaging protocol, such as, for example, Simple Object Access Protocol.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: November 3, 2009
    Assignee: Microsoft Corporation
    Inventors: Krishnan Srinivasan, Craig Andrew Critchley, Uday Shanker Hegde, Alan S. Geller, David Owen Driver, Richard Douglas Hill, Rodney Thomas Limprecht
  • Reliably transferring queued application messages
    Patent number: 7613831
    Abstract: The present invention extends to methods, systems, and computer program products for reliably and securely transferring queued application messages. Application messages are (e.g.,. binary or text) encoded and then encapsulated in transfer messages, enqueue messages, and dequeue responses such that composable protocol elements used in application messages can be reused in the transfer messages, enqueue messages, and dequeue responses. Transfer message headers are encoded and then encapsulated along with encoded application messages such that composable protocol elements used in transfer headers and application messages can be reused in the store and forward messages. Application messages, transfer messages, enqueue messages, dequeue responses, and store and forward messages can all be configured in accordance with the same messaging protocol, such as, for example, Simple Object Access Protocol.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: November 3, 2009
    Assignee: Microsoft Corporation
    Inventors: Krishnan Srinivasan, Craig Andrew Critchley, Uday Shanker Hegde, Alan S. Geller, David Owen Driver, Richard Douglas Hill, Rodney Thomas Limprecht
  • Interface infrastructure for creating and interacting with web services
    Patent number: 7512957
    Abstract: A web services namespace pertains to an infrastructure for enabling creation of a wide variety of applications. The infrastructure provides a foundation for building message-based applications of various scale and complexity. The infrastructure or framework provides APIs for basic messaging, secure messaging, reliable messaging and transacted messaging. In some embodiments, the associated APIs are factored into a hierarchy of namespaces in a manner that balances utility, usability, extensibility and versionability.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: March 31, 2009
    Assignee: Microsoft Corporation
    Inventors: Shy Cohen, Geary L. Eppley, Douglas M. Purdy, James E. Johnson, Stephen J. Millet, Stephen T. Swartz, Vijay K. Gajjala, Aaron Abraham Stern, Alexander Martin DeJarnatt, Alfred M. Lee, IV, Anand Rjagopalan, Anastasios Kasiolas, Chaitanya D. Upadhyay, Christopher G. Kaler, Craig Andrew Critchley, David Edwin Levin, David Owen Driver, David Wortendyke, Douglas A. Walter, Elliot Lee Waingold, Erik Bo Christensen, Erin P. Honeycutt, Eugene Shvets, Evgeny Osovetsky, Giovanni M. Della-Libera, Jesus Ruiz-Scougall, John David Doty, Jonathan T. Wheeler, Kapil Gupta, Kenneth David Wolf, Krishnan Srinivasan, Lance E. Olson, Matthew Thomas Tavis, Mauro Ottaviani, Max Attar Feingold, Michael James Coulson, Michael Jon Marucheck, Michael Steven Vernal, Michael Thomas Dice, Mohamed-Hany Essam Ramadan, Mohammad Makarechian, Natasha Harish Jethanandani, Richard Dievendorff, Richard Douglas Hill, Ryan Thomas Sturgell, Saurab Nog, Scott Christopher Seely, Serge Sverdlov, Siddhartha Puri, Sowmyanarayanan K. Srinivasan, Stefan Batres, Stefan Harrington Pharies, Tirunelveli Vishwanath, Tomasz Janczuk, Uday S. Hegde, Umesh Madan, Vaithialingam B. Balayogan, Vipul Arunkant Modi, Yaniv Pessach, Yasser Shohoud
  • Context-based help engine and dynamic help
    Patent number: 6959294
    Abstract: An application and a context-based help system operate on a computer. The application includes a plurality of components that effectuate application functions, where each component of the application is constructed to describe a current context of the component representative of a current state of the component. At least some of the components are active at any one time. The help system includes a help engine that receives the current context from each active component, dynamically builds a current overall context of the application based on each received current context, locates help topics based on the current overall context, and filters and prioritizes the located help topics.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: October 25, 2005
    Assignee: Microsoft Corporation
    Inventors: Timothy Rand Sullivan, Justin Shane McRoberts, Victor Stone, Craig Andrew Critchley, Derek Edward Hoiem, Peter Loforte
  • Context-based help engine and dynamic help
    Publication number: 20030016238
    Abstract: An application and a context-based help system operate on a computer. The application includes a plurality of components that effectuate application functions, where each component of the application is constructed to describe a current context of the component representative of a current state of the component. At least some of the components are active at any one time. The help system includes a help engine that receives the current context from each active component, dynamically builds a current overall context of the application based on each received current context, locates help topics based on the current overall context, and filters and prioritizes the located help topics.
    Type: Application
    Filed: March 19, 2002
    Publication date: January 23, 2003
    Inventors: Timothy Rand Sullivan, Justin Shane McRoberts, Victor Stone, Craig Andrew Critchley, Derek Edward Hoiem, Peter Loforte