Patents by Inventor Patrick L. Lunsford

Patrick L. Lunsford 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).

  • Multi-piece impeller
    Patent number: 10527055
    Abstract: An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 7, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Patrick L. Lunsford, Samuel J. LaCombe
  • Multi-piece impeller
    Patent number: 9759225
    Abstract: An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: September 12, 2017
    Assignee: Rolls-Royce Corporation
    Inventors: Patrick L. Lunsford, Samuel J. LaCombe
  • MULTI-PIECE IMPELLER
    Publication number: 20170204872
    Abstract: An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Patrick L. Lunsford, Samuel J. LaCombe
  • MULTI-PIECE IMPELLER
    Publication number: 20150016999
    Abstract: An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
    Type: Application
    Filed: December 30, 2013
    Publication date: January 15, 2015
    Inventors: Patrick L. Lunsford, Samuel J. Lancombe