Patents by Inventor Luc Dubreuil

Luc Dubreuil 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).

  • Architectures for hybrid-electric propulsion
    Patent number: 12071256
    Abstract: A hybrid propulsion system includes a heat engine configured to drive a heat engine shaft. An electric motor is configured to drive an electric motor shaft. A transmission system includes at least one gearbox. The transmission system is configured to receive rotational input power from each of the heat engine shaft and the electric motor shaft and to convert the rotation input power to output power.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: August 27, 2024
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric LaTulipe, Jean Thomassin, Xiaoqin Wang, Jean Dubreuil, Luc Dionne, Andre Julien
  • Gas pressurizable cable with compressed plug seal and method of making it
    Patent number: 4500747
    Abstract: Cable plug and method of manufacture in which hardened plugging compound surrounds individually insulated conductors and a radially resilient spring is placed around the compound which holds the spring permanently in a resiliently expanded condition to compress the compound onto the individual insulations of the conductors. In one arrangement a sleeve surrounds and intimately contacts the compound and at least one rib on the inner surface of the sleeve is urged against a complementary groove in the compound by the spring.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: February 19, 1985
    Assignee: Northern Telecom Limited
    Inventors: Luc Dubreuil, Phillip J. Reed