Patents by Inventor Craig Ernest Yerxa

Craig Ernest Yerxa 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).

  • Nozzle insert for a Yankee impingement hood
    Patent number: 7975402
    Abstract: The present invention includes a nozzle insert for use in a drying machine of the type used in paper web drying. The nozzle insert of the present invention includes at least one intake having a central portion, wherein a pair of center vanes is disposed for directing airflow. The central portion is bounded by at least one turning vane adapted for directing airflow in a lateral direction. For each turning vane, there is at least one straightening vane adapted for curtailing swirling of the airflow. The vanes are oriented at optimal angles for directing the flow of the nozzle in a lateral direction, while permitting some air to penetrate the central portion through a series of ports. The intakes are bounded by a series of insulated bulkheads, which serve to direct airflow and contain heat-loss through thermal emission.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: July 12, 2011
    Assignee: Metso Paper USA, Inc.
    Inventors: Laurent Roland Parent, David Simpson Morrison, Craig Ernest Yerxa, Rita Elizabeth Cantor, Darrell Herbert Ketch
  • NOZZLE INSERT FOR A YANKEE IMPINGEMENT HOOD
    Publication number: 20090007454
    Abstract: The present invention includes a nozzle insert for use in a drying machine of the type used in paper web drying. The nozzle insert of the present invention includes at least one intake having a central portion, wherein a pair of center vanes is disposed for directing airflow. The central portion is bounded by at least one turning vane adapted for directing airflow in a lateral direction. For each turning vane, there is at least one straightening vane adapted for curtailing swirling of the airflow. The vanes are oriented at optimal angles for directing the flow of the nozzle in a lateral direction, while permitting some air to penetrate the central portion through a series of ports. The intakes are bounded by a series of insulated bulkheads, which serve to direct airflow and contain heat-loss through thermal emission.
    Type: Application
    Filed: June 18, 2008
    Publication date: January 8, 2009
    Inventors: Laurent Roland Parent, David Simpson Morrison, Craig Ernest Yerxa, Rita Elizabeth Cantor, Darrell Herbert Ketch
  • Nozzle insert for a Yankee impingement hood
    Patent number: 7448147
    Abstract: The present invention includes a nozzle insert for use in a drying machine of the type used in paper web drying. The nozzle insert of the present invention includes at least one intake having a central portion, wherein a pair of center vanes is disposed for directing airflow. The central portion is bounded by at least one turning vane adapted for directing airflow in a lateral direction. For each turning vane, there is at least one straightening vane adapted for curtailing swirling of the airflow. The vanes are oriented at optimal angles for directing the flow of the nozzle in a lateral direction, while permitting some air to penetrate the central portion through a series of ports. The intakes are bounded by a series of insulated bulkheads, which serve to direct airflow and contain heat-loss through thermal emission.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: November 11, 2008
    Assignee: Metso Paper USA, Inc.
    Inventors: Laurent Roland Parent, David Simpson Morrison, Craig Ernest Yerxa, Rita Elizabeth Cantor, Darrell Herbert Ketch