Patents by Inventor Nathan C. Johnson

Nathan C. Johnson 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).

  • Method and fixture for airfoil array assembly
    Patent number: 9731388
    Abstract: An example method of assembling a turbomachine airfoil array includes, among other things, securing a partial airfoil array within a fixture, the partial airfoil array having at least one existing airfoil extending radially between an inner and an outer fairing and an open area where at least one existing airfoil has been removed. The method includes mounting a positioning saddle relative to a base of the fixture, the positioning saddle aligned with the open area, holding a replacement airfoil using the positioning saddle, applying a curable material at an interface between the replacement airfoil and the inner and outer fairing, and curing the curable material while maintaining a relative position between the replacement airfoil and the inner and outer fairing.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 15, 2017
    Assignee: United Technologies Corporation
    Inventors: Steven J. Feigleson, Dennis R. Tremblay, Michael E. McMahon, Nathan C. Johnson
  • METHOD AND FIXTURE FOR AIRFOIL ARRAY ASSEMBLY
    Publication number: 20160084094
    Abstract: An example method of assembling a turbomachine airfoil array includes, among other things, securing a partial airfoil array within a fixture, the partial airfoil array having at least one existing airfoil extending radially between an inner and an outer fairing and an open area where at least one existing airfoil has been removed. The method includes mounting a positioning saddle relative to a base of the fixture, the positioning saddle aligned with the open area, holding a replacement airfoil using the positioning saddle, applying a curable material at an interface between the replacement airfoil and the inner and outer fairing, and curing the curable material while maintaining a relative position between the replacement airfoil and the inner and outer fairing.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Steven J. Feigleson, Dennis R. Tremblay, Michael E. McMahon, Nathan C. Johnson