Patents by Inventor Frederic Roy

Frederic Roy 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: 20250187126
    Abstract: An assembly, has: a rotor of a rotary internal combustion engine, the rotor having two end faces and a peripheral face between the two end faces, the peripheral face defining apex portions circumferentially-spaced from one another, the rotor having seals, the seals including: apex seals extending between the two end faces and each located at a respective one of the apex portions, end seals engaging ends of the apex seals, and arc seals located on the two end faces and extending between the apex portions; and a tool engaged to the rotor and abutting the seals, the tool having: two cover plates, the rotor located between the two cover plates, the two cover plates abutting the end seals and the arc seals; and posts secured to one or more of the two cover plates and extending between the two cover plates, the posts abutting the apex seals.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 12, 2025
    Inventors: Dave BROSSEAU, Jonathan ROSS, Ken CUNNINGHAM, Noemie HEBERT, Frederic ROY, Edwin SCHULZ, Adam MESSIER
  • Patent number: 12252991
    Abstract: An engine housing includes a rotor housing body, a side housing body a side plate and a seal assembly. The rotor housing body extends about an axis to form a rotor cavity. The rotor housing body extends between and to a first axial end and a second axial end. The side housing body is disposed at the first axial end. The side plate includes an inner side, an outer side, and a perimeter edge extending from the inner side to the outer side. The seal assembly includes a support ring and a spacer. The support ring and the spacer extend about the axis. The support ring is mounted to the perimeter edge by a braze joint. The spacer extends between and to a first axial spacer end and a second axial spacer end. The first axial spacer end is disposed at the support ring and the outer side.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: March 18, 2025
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Johnny Vinski, Michel Bousquet, Jean-Philippe Simoneau, David Gagnon-Martin, Vincent Savaria, Bruno Villeneuve, Stephane Berube, Frederic Roy, Sebastien Bolduc
  • Publication number: 20250020061
    Abstract: An engine housing for an aircraft rotary engine includes a rotor housing and a side housing assembly. The rotor housing includes a rotor housing body. The rotor housing body extends about an axis to form a rotor cavity of the engine housing. The rotor housing body extends between and to a first axial end and a second axial end. The side housing assembly includes a side housing body, a side plate, and a seal assembly. The side housing body is disposed at the first axial end. The side plate includes an inner side, an outer side, and a perimeter edge extending from the inner side to the outer side. The seal assembly includes a support ring and a spacer. The support ring and the spacer extend about the axis. The support ring is mounted to the perimeter edge by a braze joint. The spacer extends between and to a first axial spacer end and a second axial spacer end. The first axial spacer end is disposed at the support ring and the outer side.
    Type: Application
    Filed: July 13, 2023
    Publication date: January 16, 2025
    Inventors: Johnny Vinski, Michel Bousquet, Jean-Philippe Simoneau, David Gagnon-Martin, Vincent Savaria, Bruno Villeneuve, Stephane Berube, Frederic Roy, Sebastien Bolduc
  • Patent number: 12110796
    Abstract: An engine housing includes a rotor housing and a side housing assembly. The rotor housing includes a rotor housing body. The rotor housing body extends about an axis to form a rotor cavity of the engine housing. The rotor housing body extends between and to a first axial end and a second axial end. The side housing assembly includes a side housing body, a side plate, and a seal assembly. The side housing body is disposed at the first axial end. The side plate is disposed axially between the rotor housing body and the side housing body. The side plate includes an inner side, an outer side, and a perimeter edge. The seal assembly includes a support ring and a sealing ring. The support ring is disposed at the perimeter edge and the first axial end. The support ring circumscribes the side plate. The sealing ring extends between and to a first axial sealing ring end and a second axial sealing ring end. The first axial sealing ring end is disposed at the support ring and the outer side.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: October 8, 2024
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Johnny Vinski, Jean-Philippe Simoneau, David Gagnon-Martin, Vincent Savaria, Bruno Villeneuve, Stephane Berube, Frederic Roy, Sebastien Bolduc