Patents by Inventor Bérenger Alexandre

Bérenger Alexandre 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: 12344353
    Abstract: A gear motor of an electrical assistance device for a cycle is provided, including a gear reducer and an electric motor, which are configured to be fitted coaxially on a central shaft, the gear reducer including at least one planet wheel, which is fitted firstly on an eccentric cam, the planet wheel also having passing therethrough at least three shafts of the satellite-carrier, the at least three shafts including a respective peripheral surface configured to come into contact with a hole of the planet wheel, which surface is made of polymer material, and/or the at least one planet wheel is made of polymer material.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: July 1, 2025
    Assignee: MAVIC GROUP
    Inventors: Jean-Pierre Mercat, Bérenger Alexandre
  • Patent number: 12325488
    Abstract: An assist device for a bicycle includes a motor, a step-down gear, a free wheel, and a shaft which rotates as one with a right crank and a left crank. The motor transmits an assist torque to the shaft by m the free wheel. The device is designed to be received inside a pedal assembly casing. The shaft is rotatably mounted relative to the casing by two ball bearings. The free wheel includes a plurality of pieces which are placed between the motor and the shaft. The device also includes a torque transmission ring which allows one of the pieces of the free wheel to be secured to the shaft or to one of the cranks. The transmission ring is at least partially placed under one of the two ball bearings.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 10, 2025
    Assignee: MAVIC GROUP
    Inventors: Jean-Pierre Mercat, Bérenger Alexandre, François-Xavier Huat, Jérôme Fantin
  • Patent number: 12275494
    Abstract: An automatic method for controlling in current-mode a motor for assisting with pedaling on an electrically assisted pedal cycle equipped with a sensor that measures a resultant force on its pedal and gear mechanism is provided, including injecting a control current into the motor to generate an assistance torque and computing the value of the assistance torque; computing a value of the longitudinal resultant of the assistance torque by applying a second coefficient of proportionality to the torque value computed in the preceding step; measuring a value of the longitudinal resultant of the total torque; computing a value of the longitudinal resultant of the torque exerted by the cyclist; computing an average value of the torque exerted by the cyclist over a fraction of a crank rotation; computing the value of the assistance torque to be generated in the motor; and deducing the value of the current to be injected.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: April 15, 2025
    Assignee: MAVIC GROUP
    Inventors: Jean-Pierre Mercat, Bérenger Alexandre
  • Patent number: 12043122
    Abstract: A force measurement sensor includes a peripheral portion, a central portion, and a first frame connecting an upper section of the peripheral portion to an upper portion of the central portion. The central portion includes a seat intended to receive the outer ring of a bearing in order to mount a shaft in rotation about an axis Z. The frame includes a core enclosed by two arms which are substantially parallel to one another, such that the upper section of the peripheral portion, the upper portion of the central portion, and the two arms form a parallelogram.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 23, 2024
    Assignee: MAVIC GROUP
    Inventors: Jean-Pierre Mercat, Bérenger Alexandre
  • Patent number: 9511626
    Abstract: The invention includes a rim for a cycle wheel, having a U-shaped radial cross section, with two lateral sidewalls and a bridge connecting the sidewalls and located so as to be opposite an axis rotation of the wheel. The sidewalls each define a planar braking surface, adapted to cooperate with a brake pad. The height of at least one braking surface, measured radially, is not constant over the circumference of the rim and has at least one variation in height.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: December 6, 2016
    Assignee: MAVIC S.A.S.
    Inventors: Bérenger Alexandre, Jean-Pierre Mercat
  • Patent number: 9493032
    Abstract: A cycle wheel having a U-shaped radial cross section, with two lateral sidewalls located on opposite sides of a median plane of the rim and each demarcated by an outer surface facing away from the median plane, on the one hand, and a bridge connecting the sidewalls and including an outer surface facing toward the axis of rotation of the wheel, on the other hand. At least one median zone of the outer surface of the bridge, which has a transverse width measured perpendicular to the median plane and greater than 4 mm, is machined over the entire circumference of the rim.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: November 15, 2016
    Assignee: MAVIC S.A.S.
    Inventors: Bérenger Alexandre, Jean-Pierre Mercat
  • Patent number: 9186718
    Abstract: A method for manufacturing a cycle wheel rim having, in radial cross section, two lateral sidewalls and a bridge, the rim having an outer surface facing outward of the rim and defined by the bridge and by at least a portion of the sidewalls. The manufacturing method includes extruding a section; bending the section; assembling the ends of the hoop formed from the section by joining one to the another; drilling holes in the bridge for fastening the spokes; machining the entire outer surface in a radial plane and on at least a portion of the circumference of the rim.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: November 17, 2015
    Assignee: MAVIC S.A.S.
    Inventors: Bérenger Alexandre, Jean-Pierre Mercat