Patents by Inventor Jacques Langlois

Jacques Langlois 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).

  • Ventilation system for a passenger transit vehicle
    Patent number: 9623722
    Abstract: A ventilation system for a passenger transit vehicle that comprises a passenger compartment. The ventilation system comprises a variable speed fan for providing outside air to the passenger compartment, wherein within a given ambient temperature range, the speed of the variable speed fan is controlled such that the air speed produced by the variable speed fan increases with increasing ambient temperature. The ventilation system further comprises a duct system fluidly connecting the variable speed fan to an air diffuser that directs the air from the variable speed fan towards the passengers within the passenger compartment. The cross sectional area of the duct system decreases along its length for providing substantially constant air pressure along its length. The ventilation system is able to provide outside air into the passenger compartment at an air flow speed of greater than 0.15 m/s.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 18, 2017
    Assignee: Bombardier Transportation GmbH
    Inventors: Marc Chagnon, Jacques Langlois, Jenny Marsala, René Beaulleu
  • Ventilation System for a Passenger Transit Vehicle
    Publication number: 20140295746
    Abstract: A ventilation system for a passenger transit vehicle that comprises a passenger compartment. The ventilation system comprises a variable speed fan for providing outside air to the passenger compartment, wherein within a given ambient temperature range, the speed of the variable speed fan is controlled such that the air speed produced by the variable speed fan increases with increasing ambient temperature. The ventilation system further comprises a duct system fluidly connecting the variable speed fan to an air diffuser that directs the air from the variable speed fan towards the passengers within the passenger compartment. The cross sectional area of the duct system decreases along its length for providing substantially constant air pressure along its length. The ventilation system is able to provide outside air into the passenger compartment at an air flow speed of greater than 0.15 m/s.
    Type: Application
    Filed: February 3, 2012
    Publication date: October 2, 2014
    Applicant: BOMBARDIER TRANSPORTATION GMBH
    Inventors: Marc Chagnon, Jacques Langlois, Jenny Marsala, René Beaulieu