Patents by Inventor Ellen M. Dumas

Ellen M. Dumas 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).

  • Publication number: 20110298287
    Abstract: The present invention relates to an apparatus and method for improving the transportation and installation of portable step-up power transformers for a power generating station due to failure or unavailability of installed step up transformers. A large MVA portable transformer may be used to alleviate or minimize these issues by being purpose built for transportability and commissioning speed. The portable transformer is transportable by road or lighter rail. Its size and weight are arranged to overcome restrictions such was weight limits, bridge constraints, and power line constraints. This device may also provide for rapid commissioning and decommissioning. This transformer may be a set of three single-phase units of sufficient size to be used as a generator step up transformer in three-phase operation.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 8, 2011
    Applicant: General Electric Company
    Inventors: Geoffrey A. Cobb, Eric J. Kauffman, Sterling R. Rosten, Ellen M. Dumas
  • Publication number: 20100090543
    Abstract: The present invention relates to an apparatus and method for improving the transportation and installation of portable step-up power transformers for a power generating station due to failure or unavailability of installed step up transformers. A large MVA portable transformer may be used to alleviate or minimize these issues by being purpose built for transportability and commissioning speed. The portable transformer is transportable by road or lighter rail. Its size and weight are arranged to overcome restrictions such was weight limits, bridge constraints, and power line constraints. This device may also provide for rapid commissioning and decommissioning. This transformer may be a set of three single-phase units of sufficient size to be used as a generator step up transformer in three-phase operation.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 15, 2010
    Inventors: Geoffrey A. Cobb, Eric J. Kauffman, Sterling R. Rosten, Ellen M. Dumas