Patents by Inventor Francis Demarquilly

Francis Demarquilly 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).

  • Patent number: 10507848
    Abstract: A railway vehicle for passenger transport comprising a vehicle body, said vehicle body including a passenger entrance area and a vehicle boarding aid for facilitating passengers' access to the passenger entrance area, the vehicle boarding aid comprising a movable entry threshold arranged in an access position facilitating passengers' access to the passenger entrance area and a vertical position adjusting device for vertically adjusting the access position of the entry threshold as a function of a potential vertical gap between a station platform and the passenger entrance area, wherein said entry threshold is fixedly arranged in said access position in all operating states of the railway vehicle.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: December 17, 2019
    Assignee: Alstom Transport Technologies
    Inventors: Francis Demarquilly, Eric Combeau, Frédéric Le-Breton
  • Publication number: 20170334464
    Abstract: A railway vehicle for passenger transport comprising a vehicle body, said vehicle body including a passenger entrance area and a vehicle boarding aid for facilitating passengers' access to the passenger entrance area, the vehicle boarding aid comprising a movable entry threshold arranged in an access position facilitating passengers' access to the passenger entrance area and a vertical position adjusting device for vertically adjusting the access position of the entry threshold as a function of a potential vertical gap between a station platform and the passenger entrance area, wherein said entry threshold is fixedly arranged in said access position in all operating states of the railway vehicle.
    Type: Application
    Filed: November 19, 2014
    Publication date: November 23, 2017
    Applicant: Alstom Transport Technologies
    Inventors: Francis DEMARQUILLY, Eric COMBEAU, Frédéric LE-BRETON
  • Patent number: 8381659
    Abstract: A railway vehicle including a plurality of bogies is provided. Each bogie includes a chassis, two front wheels and two rear wheels. For each front wheel and each rear wheel, a guidance device is provided for guiding the wheel in rotation and a primary suspension device of the chassis is provided on the guidance device. At least the primary suspension devices associated with the front and rear wheels are arranged on the same first lateral side of the bogie. The primary suspension devices each include two longitudinal connecting rods, each connected by a first connection point to the chassis and by a second connection point to the corresponding guidance device and at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each of the bogies also includes a pivot connection device for connecting the bogie to the railway vehicle.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 26, 2013
    Assignee: Alstom Transport SA
    Inventors: Alain Rodet, Christophe Eche, Yves Longueville, Francis Demarquilly
  • Patent number: 8365675
    Abstract: A railway vehicle including two end bogies is provided. Each end bogie includes a chassis; two front wheels and two rear wheels; for each front wheel and each rear wheel, guide for guiding the wheel in rotation and a primary suspension device of the chassis on the guide. At least the primary suspension devices associated with the front and rear wheels arranged on the same first lateral side of the bogie include two longitudinal connecting rods, each connected by a first connection point to the chassis, and by a second connection point to the corresponding guide, at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each end bogie includes pivot connector suitable for connecting the end bogie to the vehicle.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 5, 2013
    Assignee: Alstom Transport SA
    Inventors: Alain Rodet, Christophe Eche, Yves Longueville, Francis Demarquilly
  • Publication number: 20100132585
    Abstract: A railway vehicle including a plurality of bogies is provided. Each bogie includes a chassis, two front wheels and two rear wheels. For each front wheel and each rear wheel, a guidance device is provided for guiding the wheel in rotation and a primary suspension device of the chassis is provided on the guidance device. At least the primary suspension devices associated with the front and rear wheels are arranged on the same first lateral side of the bogie. The primary suspension devices each include two longitudinal connecting rods, each connected by a first connection point to the chassis and by a second connection point to the corresponding guidance device and at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each of the bogies also includes a pivot connection device for connecting the bogie to the railway vehicle.
    Type: Application
    Filed: March 14, 2008
    Publication date: June 3, 2010
    Applicant: ALSTOM TRANSPORT SA
    Inventors: Alain Rodet, Christope Eche, Yves Longueville, Francis Demarquilly
  • Publication number: 20100083866
    Abstract: A railway vehicle including two end bogies is provided. Each end bogie includes a chassis; two front wheels and two rear wheels; for each front wheel and each rear wheel, guide for guiding the wheel in rotation and a primary suspension device of the chassis on the guide. At least the primary suspension devices associated with the front and rear wheels arranged on the same first lateral side of the bogie include two longitudinal connecting rods, each connected by a first connection point to the chassis, and by a second connection point to the corresponding guide, at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each end bogie includes pivot connector suitable for connecting the end bogie to the vehicle.
    Type: Application
    Filed: March 18, 2008
    Publication date: April 8, 2010
    Applicant: ALSTOM TRANSPORT SA
    Inventors: Alain Rodet, Christope Eche, Yves Longueville, Francis Demarquilly
  • Patent number: 6497183
    Abstract: A release device for releasing an inflatable element for protecting a vehicle against impact, which element, once inflated, presents a general shape that fits closely over the region of the vehicle to be protected, said inflatable element being held, in a folded state, in a compartment that includes a wall that is connected in sealed manner to an edge of an opening of said inflatable element, wherein, facing said opening, said wall includes gas release means that are protected during inflation of the inflatable element by a closure flap controlled by actuator means that remove said closure flap once the inflatable element is deployed.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: December 24, 2002
    Assignee: Alstom
    Inventors: Francis Demarquilly, Jean-Jacques Laporte
  • Patent number: 6454326
    Abstract: A device for protecting a vehicle against impact, the device comprising an inflatable element presenting, once inflated, a bearing surface in contact with the region of the vehicle to be protected, and an impact surface designed to receive the impact directly, wherein said inflatable element includes localized flexible connection elements connecting holding points of the impact surface with fastening points of the bearing surface.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 24, 2002
    Assignee: Alstom
    Inventors: Francis Demarquilly, Jean-Jacques Laporte
  • Publication number: 20020005142
    Abstract: A release device for releasing an inflatable element for protecting a vehicle against impact, which element, once inflated, presents a general shape that fits closely over the region of the vehicle to be protected, said inflatable element being held, in a folded state, in a compartment that includes a wall that is connected in sealed manner to an edge of an opening of said inflatable element, wherein, facing said opening, said wall includes gas release means that are protected during inflation of the inflatable element by a closure flap controlled by actuator means that remove said closure flap once the inflatable element is deployed.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 17, 2002
    Applicant: ALSTOM
    Inventors: Francis Demarquilly, Jean-Jacques Laporte
  • Publication number: 20010028173
    Abstract: A device for protecting a vehicle against impact, the device comprising an inflatable element presenting, once inflated, a bearing surface in contact with the region of the vehicle to be protected, and an impact surface designed to receive the impact directly, wherein said inflatable element includes localized flexible connection elements connecting holding points of the impact surface with fastening points of the bearing surface.
    Type: Application
    Filed: March 23, 2001
    Publication date: October 11, 2001
    Inventors: Francis Demarquilly, Jean-Jacques Laporte