Patents by Inventor Brett A. Pfeffer

Brett A. Pfeffer 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).

  • FLEXIBLE SWIRLERS
    Publication number: 20160215982
    Abstract: A swirler includes a swirler body and a plurality of axial swirl vanes extending radially outward from the swirler body. At least one of the swirler body or vanes includes a spring channel defined therethrough. A fuel injector for a gas turbine engine can include an inner air swirler and/or outer air swirler as described above.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 28, 2016
    Inventors: Brett A. Pfeffer, Jason A. Ryon
  • Machined springs for injector applications
    Patent number: 9068510
    Abstract: A machined spring for injector applications includes opposed first and second spring bases separated apart along a longitudinal axis. A spring body connects the first and second spring bases. The spring body includes a generally annular wall with a plurality of spring channels defined therethrough, such as machined channels. Exemplary applications for such machined springs include liquid strainers, valve components, and structural components for accommodating thermal expansion in injectors.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 30, 2015
    Assignee: Delavan, Inc
    Inventors: Brett A. Pfeffer, Mark A. Caples
  • INTEGRATED HEAT SHIELD
    Publication number: 20150069148
    Abstract: A fuel injector for a gas turbine engine includes a nozzle tip assembly having a substantially monolithically formed nozzle body. The nozzle body has an annular outlet chamber for issuing a spray from the nozzle tip. A feed channel is in fluid communication with the outlet chamber through a feed passage. A heat shield void substantially surrounds the feed channel(s).
    Type: Application
    Filed: February 26, 2014
    Publication date: March 12, 2015
    Applicant: DELAVAN INC
    Inventors: Jason A. Ryon, Brett A. Pfeffer, Matthew R. Donovan, Philip E. Buelow
  • MACHINED SPRINGS FOR INJECTOR APPLICATIONS
    Publication number: 20130126641
    Abstract: A machined spring for injector applications includes opposed first and second spring bases separated apart along a longitudinal axis. A spring body connects the first and second spring bases. The spring body includes a generally annular wall with a plurality of spring channels defined therethrough, such as machined channels. Exemplary applications for such machined springs include liquid strainers, valve components, and structural components for accommodating thermal expansion in injectors.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: Delavan Inc
    Inventors: Brett A. Pfeffer, Mark A. Caples