Patents by Inventor David BEXTON

David BEXTON 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).

  • Stator vane arrangement and a method of casting a stator vane arrangement
    Patent number: 10570761
    Abstract: A stator vane arrangement for a turbomachine comprises a radially inner annular structure, a radially outer annular structure and a plurality of circumferentially spaced vanes extending radially between the inner annular structure and the outer annular structure. At least one of the vanes has a passage extending from the inner annular structure to the outer annular structure. The inner annular structure has at least one radially inwardly extending boss and each boss has a passage extending there-through. The passage in each boss is aligned with a corresponding passage in a vane. Each boss comprises a first portion having a first cross-sectional area and a second portion having a second cross-sectional area which is greater than the first cross-sectional area. The first portion of each boss is positioned between and interconnecting the second portion of the boss and the inner annular structure.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: February 25, 2020
    Assignee: ROLLS-ROYCE plc
    Inventors: Richard R. Green, David Bexton
  • STATOR VANE ARRANGMENT AND A METHOD OF CASTING A STATOR VANE ARRANGMENT
    Publication number: 20180003066
    Abstract: A stator vane arrangement for a turbomachine comprises a radially inner annular structure, a radially outer annular structure and a plurality of circumferentially spaced vanes extending radially between the inner annular structure and the outer annular structure. At least one of the vanes has a passage extending from the inner annular structure to the outer annular structure. The inner annular structure has at least one radially inwardly extending boss and each boss has a passage extending there-through. The passage in each boss is aligned with a corresponding passage in a vane. Each boss comprises a first portion having a first cross-sectional area and a second portion having a second cross-sectional area which is greater than the first cross-sectional area. The first portion of each boss is positioned between and interconnecting the second portion of the boss and the inner annular structure.
    Type: Application
    Filed: June 15, 2017
    Publication date: January 4, 2018
    Applicant: ROLLS-ROYCE plc
    Inventors: Richard R. GREEN, David BEXTON