Patents by Inventor Jean-Pierre Mercat

Jean-Pierre Mercat 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: 20220219779
    Abstract: A crankset assembly to be mounted on a bicycle includes at least one right-hand bearing for mounting a crankset shaft and a force sensor positioned around the outer ring of the bearing. The force sensor includes a peripheral portion, a central portion, and a top frame connecting a top section of the peripheral portion to a top portion of the central portion. The frame is positioned at a diameter oriented along an axis (Y?). The axis (Y?) makes an angle (?) of between 10° and 30° with the vertical axis (Y) and the top frame is positioned behind the vertical axis (Y).
    Type: Application
    Filed: April 15, 2020
    Publication date: July 14, 2022
    Applicant: MAVIC SAS
    Inventors: Jean-Pierre MERCAT, Bérenger ALEXANDRE
  • Publication number: 20220161666
    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: Application
    Filed: April 15, 2020
    Publication date: May 26, 2022
    Applicant: MAVIC SAS
    Inventors: Jean-Pierre MERCAT, Bérenger ALEXANDRE
  • Publication number: 20220081063
    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: Application
    Filed: January 8, 2020
    Publication date: March 17, 2022
    Applicant: MAVIC SAS
    Inventors: Jean-Pierre MERCAT, Bérenger ALEXANDRE, François-Xavier HUAT, Jérôme FANTIN
  • Publication number: 20220001956
    Abstract: An electric assist device for a bicycle comprising a shaft coupled in rotation with a pair of cranks and being able to be rotated in a positive direction by an electric motor, a connection mechanism being placed between the motor and the shaft, which connection mechanism has at least three distinct states. The states includes State 1, termed assist state, in which the motor transmits a torque to the shaft via a drive part which rotates at the same speed as the shaft, State 2, termed freewheel state, in which the rotation of the shaft in the positive direction is greater than that of the drive part, and State 3, termed disconnection state, in which a rotation in the positive direction or in the negative direction of the shaft cannot cause the motor to rotate.
    Type: Application
    Filed: November 14, 2019
    Publication date: January 6, 2022
    Applicant: MAVIC SAS
    Inventor: Jean-Pierre MERCAT
  • Patent number: 10737741
    Abstract: A skewer for fixing a wheel to a cycle-type vehicle, comprising a rod extending along a longitudinal axis, a first end that includes structural elements that cooperate with the vehicle frame, and a second end that includes structural elements configured to cooperate with a device exerting a tightening torque, in which the rod includes a groove extending along the longitudinal axis over a first length, an element having a variable diameter and a second length, the second length being less than the first length, is received in the groove so as to be translationally movable along the longitudinal axis, and an elastic biaser longitudinally constrains the variable diameter element towards the second end. The variable diameter element is a split tubular ring whose diameter in the free state is greater than the maximum outer diameter of the rod; it is longitudinally constrained by a spiral spring, and a distribution ring is interposed between the spring and the variable diameter element.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 11, 2020
    Assignee: MAVIC S.A.S.
    Inventor: Jean-Pierre Mercat
  • Patent number: 10730345
    Abstract: Skewer for tightening a cycle wheel to the cycle frame, such skewer including a first end having a threaded portion cooperable with a female thread of a first frame portion, and a second end having axial abutment mechanisms for contacting a second frame portion, as well as drive mechanisms to enable a user to alternately exert a tightening torque or a loosening torque. A torque limiting mechanism operational in the tightening direction is positioned between the drive mechanisms and the rod. The skewer further includes a braking device to increase the torque required to initiate the rotation of the drive mechanisms in the loosening direction. The braking device includes two mutually contacting friction surfaces when the axial abutment mechanisms are in contact with the second frame portion. When the torque limiting mechanism is operational, the braking device becomes non-operational because the friction surfaces are no longer in mutual contact.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 4, 2020
    Assignee: MAVIC S.A.S.
    Inventor: Jean-Pierre Mercat
  • Publication number: 20180327048
    Abstract: Skewer for tightening a cycle wheel to the cycle frame, such skewer including a first end having a threaded portion cooperable with a female thread of a first frame portion, and a second end having axial abutment mechanisms for contacting a second frame portion, as well as drive mechanisms to enable a user to alternately exert a tightening torque or a loosening torque. A torque limiting mechanism operational in the tightening direction is positioned between the drive mechanisms and the rod. The skewer further includes a braking device to increase the torque required to initiate the rotation of the drive mechanisms in the loosening direction. The braking device includes two mutually contacting friction surfaces when the axial abutment mechanisms are in contact with the second frame portion. When the torque limiting mechanism is operational, the braking device becomes non-operational because the friction surfaces are no longer in mutual contact.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Applicant: MAVIC S.A.S
    Inventor: Jean-Pierre MERCAT
  • Patent number: 9599526
    Abstract: A hub for measuring the driving torque of a cycle wheel, the hub including a central shaft defining an axis of rotation of the wheel, and a hub body mounted to rotate freely about the shaft, the hub body including a central portion bordered on both sides by respective flanges, the flanges fastening at least one connecting element to connect the hub body to a rim of the wheel. The hub includes a system for measuring the driving torque of the wheel including strain gauges fixed on the hub body.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: March 21, 2017
    Assignee: MAVIC S.A.S.
    Inventors: Jean-Pierre Mercat, Christophe Neyroud
  • Publication number: 20160375950
    Abstract: A skewer for fixing a wheel to a cycle-type vehicle, comprising a rod extending along a longitudinal axis, a first end that includes structural elements that cooperate with the vehicle frame, and a second end that includes structural elements configured to cooperate with a device exerting a tightening torque, in which the rod includes a groove extending along the longitudinal axis over a first length, an element having a variable diameter and a second length, the second length being less than the first length, is received in the groove so as to be translationally movable along the longitudinal axis, and an elastic biaser longitudinally constrains the variable diameter element towards the second end. The variable diameter element is a split tubular ring whose diameter in the free state is greater than the maximum outer diameter of the rod; it is longitudinally constrained by a spiral spring, and a distribution ring is interposed between the spring and the variable diameter element.
    Type: Application
    Filed: June 28, 2016
    Publication date: December 29, 2016
    Applicant: MAVIC S.A.S
    Inventor: Jean-Pierre MERCAT
  • 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
  • Publication number: 20160144660
    Abstract: A cycle wheel rim adapted to receive an open tire. The rim has a U-shaped radial cross section, with two sidewalls located on opposite sides of a median plane of the rim, and a lower bridge connecting the sidewalls. An upper bridge connects the sidewalls to form a closed contour. The upper bridge includes a median zone extending on opposite sides of the median plane. In the median zone and on a circumferential portion of the rim greater than or equal to 50% of its circumference, a reduced thickness of the upper bridge is less than 0.75 mm, or in an alternative embodiment, less than 0.65 mm.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Applicant: MAVIC S.A.S.
    Inventors: Jean-Pierre MERCAT, Christophe NEYROUD
  • 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
  • Patent number: 9044998
    Abstract: A wheel rim having an axis of rotation, the rim including a first element in the form of a section of a solid of revolution about the axis, made in a single unitary piece from composite material and including a first end and a second end distinct from one another. The first element is made by pultrusion and constitutes, between the first end and the second end, a section of a solid of revolution having an angular arc greater than 350°, the composite material of the first element includes fibers embedded in a thermosetting matrix, the fibers constituting at least 50% of the weight of the first element.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: June 2, 2015
    Assignee: MAVIC S.A.S.
    Inventors: Jean-Pierre Mercat, Benoît Saillet
  • Publication number: 20150028660
    Abstract: A cycle wheel rim having an axis and a median plane perpendicular to the axis, the rim comprising an upper bridge and at least one left lateral flange extending from the upper bridge and extended by a hook projecting radially towards the axis and axially towards the median plane, the upper bridge including a stop positioned on the same side of the left lateral flange in relation to the median plane, so that the left lateral flange, the hook, and the stop demarcate a left channel open upward, the amplitude of the opening of the channel, defined by the distance between the hook and the stop being less than the greatest amplitude of the channel. The depth of the channel, measured between the top of the hook and the bottom of the gutter, is less than 6.0 mm, or less than 5.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventor: Jean-Pierre MERCAT
  • Publication number: 20150027610
    Abstract: A pneumatic tire for a cycle wheel comprising a casing and two beads positioned on respective ones of lateral sides of the casing, the pneumatic tire having the shape of an open torus and defining an inner volume, at least one of the two beads having a shoulder projecting outward of the portion of the casing adjacent thereto, and a support positioned along a radial plane at a second end of the bead, the shoulder being positioned along a radial plane at a first end of the bead and comprising, on its outer surface, a first support surface and an edge, the first support surface being positioned between the edge and the casing, and the support surface being set back with respect to the edge. In a radial plane, the normal direction of the first support surface is substantially tangent to the casing, the support comprising a second support surface positioned on the inner side.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventor: Jean-Pierre MERCAT
  • Publication number: 20150027611
    Abstract: A cycle wheel with an axis of rotation and having a median plane perpendicular to the axis, the wheel comprising a rim and a pneumatic tire, in which: the rim includes an upper bridge and at least one left lateral flange extending from the upper bridge and extending radially outward so as to move away from the axis, the upper bridge including a stop positioned on the same side as the left lateral flange in relation to the median plane, so that the left lateral flange and the stop demarcate a left channel, the left channel having, along a radial plane, an opening having an amplitude, a length greater than the opening, the pneumatic tire comprising a casing and at least one non-deformable left bead which, along a radial plane, has a length, a thickness less than the length of the bead, the length of the bead being greater than the amplitude of the opening, the thickness of the bead being less than or equal to the amplitude of the opening; the surface area of the bead cross section being less than the surface ar
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventor: Jean-Pierre MERCAT
  • Patent number: 8905492
    Abstract: Quick-release skewer including a longitudinal rod with first and second clamping abutments at first and second ends of the rod, a lever pivotally mounted on the first end of the rod, the lever having a cam, a movable support member between the periphery of the cam and a first outer abutment surface, the movable support member including a locking surface capable of coming into contact with the cam and separated from the first outer abutment surface by a distance D1, the movable support member including an unlocking surface capable of coming into contact with the cam and separated from the first outer abutment surface by a distance D2 that is less than D1. The difference between D1 and D2 is between 2.0 and 4.0 mm. When the support member is in a locking position, the cam contacts the locking surface; in the unlocking position, the cam contacts the unlocking surface.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: December 9, 2014
    Assignee: Mavic S.A.S.
    Inventors: Joseph Normand, Jean-Pierre Mercat
  • Patent number: 8820851
    Abstract: A tire for a cycle having a substantially toroidal shape, the tire including a tread adapted to be in contact with the ground, a base adapted to be fixed on the peripheral portion of a cycle rim, and two sides connecting the tread and the base, a lip having a height h greater than twice its thickness e and projecting from the upper portion of each of the two sides, in the vicinity of the tread. The height of the lip is greater than 15% of the width S of the tire in an inflated state. The lips can be constituted by the non-attached extension of the tread and, in particular, by a ply of material affixed to the top of the tire and whose edges are left free on a height greater than 15% of the width of the tire, or each lip can be arranged on an intermediate element adhered on the sides and/or the base of the tire, the intermediate element being capable of being a ring including an annular channel open towards its periphery and two lips projecting from each side of the channel.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 2, 2014
    Assignee: Mavic SAS
    Inventors: Jean-Pierre Mercat, Olivier Mouzin
  • Publication number: 20140202262
    Abstract: A hub for measuring the driving torque of a cycle wheel, the hub including a central shaft defining an axis of rotation of the wheel, and a hub body mounted to rotate freely about the shaft, the hub body including a central portion bordered on both sides by respective flanges, the flanges fastening at least one connecting element to connect the hub body to a rim of the wheel. The hub includes a system for measuring the driving torque of the wheel including strain gauges fixed on the hub body.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 24, 2014
    Applicant: MAVIC S.A.S.
    Inventors: Jean-Pierre MERCAT, Christophe NEYROUD